调整多字节写入接口，解决逻辑混淆的代码
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.idea/.gitignore
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.idea/.gitignore
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# 默认忽略的文件
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/shelf/
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/workspace.xml
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# 基于编辑器的 HTTP 客户端请求
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/httpRequests/
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# Datasource local storage ignored files
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/dataSources/
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/dataSources.local.xml
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.idea/gateway.iml
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="PYTHON_MODULE" version="4">
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<component name="NewModuleRootManager">
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<content url="file://$MODULE_DIR$" />
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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<component name="PyDocumentationSettings">
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<option name="format" value="PLAIN" />
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<option name="myDocStringFormat" value="Plain" />
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</component>
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</module>
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.idea/inspectionProfiles/profiles_settings.xml
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<component name="InspectionProjectProfileManager">
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<settings>
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<option name="USE_PROJECT_PROFILE" value="false" />
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<version value="1.0" />
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</settings>
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</component>
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.idea/modules.xml
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.idea/modules.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="ProjectModuleManager">
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<modules>
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<module fileurl="file://$PROJECT_DIR$/.idea/gateway.iml" filepath="$PROJECT_DIR$/.idea/gateway.iml" />
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</modules>
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</component>
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</project>
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="VcsDirectoryMappings">
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<mapping directory="" vcs="Git" />
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</component>
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</project>
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BIN
gateway/__pycache__/api_server.cpython-313.pyc
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gateway/__pycache__/api_server.cpython-313.pyc
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gateway/__pycache__/cache_manager.cpython-313.pyc
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gateway/__pycache__/cache_manager.cpython-313.pyc
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gateway/__pycache__/config_loader.cpython-313.pyc
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gateway/__pycache__/config_loader.cpython-313.pyc
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gateway/__pycache__/config_manager.cpython-313.pyc
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gateway/__pycache__/config_manager.cpython-313.pyc
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gateway/__pycache__/config_validator.cpython-313.pyc
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gateway/__pycache__/config_validator.cpython-313.pyc
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gateway/__pycache__/plc_manager.cpython-313.pyc
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gateway/__pycache__/plc_manager.cpython-313.pyc
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gateway/__pycache__/snap7_client.cpython-313.pyc
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gateway/__pycache__/snap7_client.cpython-313.pyc
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@ -6,6 +6,7 @@ from functools import wraps
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from config_manager import ConfigManager
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import logging
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class APIServer:
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"""REST API服务器，提供PLC数据访问和配置管理功能"""
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@ -43,6 +44,7 @@ class APIServer:
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def requires_auth(self, f):
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"""装饰器：需要认证的路由，保留函数元数据"""
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@wraps(f)
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def decorated(*args, **kwargs):
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if not self.auth_enabled:
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@ -52,6 +54,7 @@ class APIServer:
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if not auth or not self.check_auth(auth.username, auth.password):
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return self.authenticate()
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return f(*args, **kwargs)
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return decorated
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def get_summary(self):
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@ -66,7 +69,8 @@ class APIServer:
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summary[plc_name][area_name] = {
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"status": area["status"],
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"plc_connection_status": plc_status,
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"last_update": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(last_update)) if last_update > 0 else "Never",
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"last_update": time.strftime("%Y-%m-%d %H:%M:%S",
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time.localtime(last_update)) if last_update > 0 else "Never",
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"size": area["size"],
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"type": area["type"]
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}
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@ -177,14 +181,21 @@ class APIServer:
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</div>
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<div class="api-endpoint">
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<strong>Single Read_Bool:</strong> GET /api/read_bool/<plc_name>/<area_name>/<offset>/<length><br>
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Example: /api/read_bool/PLC1/DB100_Read/0/2
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<strong>Single Data Write:</strong> POST /api/write_data/<plc_name>/<area_name>/<offset>/<data_type><br>
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Body: {"value": value}<br>
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Example: POST /api/write_data/PLC1/DB100_Write/10/int with {"value": 12345}
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</div>
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<div class="api-endpoint">
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<strong>Single Write_Bool:</strong> POST /api/write_bool/<plc_name>/<area_name>/<offset><br>
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Body: Raw binary data<br>
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Example: POST /api/write_bool/PLC1/DB100_Write/0
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<strong>Array Write:</strong> POST /api/write_array/<plc_name>/<area_name>/<offset>/<data_type><br>
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Body: {"values": [values]}<br>
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Example: POST /api/write_array/PLC1/DB100_Write/0/int with {"values": [1,2,3,4,5]}
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</div>
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<div class="api-endpoint">
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<strong>Bit Write:</strong> POST /api/write_bit/<plc_name>/<area_name>/<byte_offset>/<bit_offset><br>
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Body: 0 or 1<br>
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Example: POST /api/write_bit/PLC1/DB100_Write/10/3 with 1
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</div>
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<div class="api-endpoint">
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@ -236,7 +247,8 @@ class APIServer:
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for plc_name in self.cache_manager.plc_connection_status:
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plc_statuses[plc_name] = {
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"status": self.cache_manager.plc_connection_status[plc_name],
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"last_connected": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(self.cache_manager.plc_last_connected[plc_name]))
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"last_connected": time.strftime("%Y-%m-%d %H:%M:%S",
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time.localtime(self.cache_manager.plc_last_connected[plc_name]))
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if self.cache_manager.plc_last_connected[plc_name] > 0 else "Never"
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}
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@ -244,7 +256,8 @@ class APIServer:
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"status": "running",
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"start_time": self.start_time,
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"plc_count": len(self.config_manager.get_config().get("plcs", [])),
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"cache_size": sum(len(area["data"]) for plc in self.cache_manager.cache.values() for area in plc.values()),
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"cache_size": sum(
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len(area["data"]) for plc in self.cache_manager.cache.values() for area in plc.values()),
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"plc_statuses": plc_statuses
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})
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@ -731,12 +744,12 @@ class APIServer:
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</div>
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<div class="endpoint">
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<h3>Single Write</h3>
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<h3>Single Write (Raw Bytes)</h3>
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<div>
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<span class="method method-post">POST</span>
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<code>/api/write/<plc_name>/<area_name>/<offset></code>
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</div>
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<p>向指定区域写入数据。</p>
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<p>向指定区域写入原始字节数据。</p>
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<h4>路径参数</h4>
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<table>
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@ -777,60 +790,12 @@ class APIServer:
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</div>
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<div class="endpoint">
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<h3>Single Read Bool</h3>
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<div>
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<span class="method method-get">GET</span>
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<code>/api/read_bool/<plc_name>/<area_name>/<offset>/<length></code>
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</div>
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<p>从指定区域读取数据。</p>
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<h4>路径参数</h4>
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<table>
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<tr>
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<th>参数</th>
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<th>描述</th>
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</tr>
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<tr>
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<td>plc_name</td>
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<td>PLC名称（如PLC1）</td>
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</tr>
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<tr>
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<td>area_name</td>
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<td>区域名称（如DB100_Read）</td>
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</tr>
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<tr>
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<td>offset</td>
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<td>起始偏移量（字节）</td>
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</tr>
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<tr>
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<td>length</td>
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<td>读取长度（字节）</td>
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</tr>
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</table>
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<h4>响应示例</h4>
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<div class="example">
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{
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"status": "success",
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"plc_name": "PLC1",
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"area_name": "DB100_Read",
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"offset": 0,
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"length": 2,
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"data": [0:False, 1:False],
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"plc_connection_status": "connected",
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"last_update": 1698754321.456,
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"last_update_formatted": "2023-10-30 14:12:01"
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}
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</div>
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</div>
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<div class="endpoint">
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<h3>Single Write Bool</h3>
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<h3>Single Data Write</h3>
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<div>
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<span class="method method-post">POST</span>
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<code>/api/write_bool/<plc_name>/<area_name>/<offset></code>
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<code>/api/write_data/<plc_name>/<area_name>/<offset>/<data_type></code>
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</div>
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<p>向指定区域写入数据。</p>
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<p>以指定数据类型向指定区域写入单个数据。</p>
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<h4>路径参数</h4>
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<table>
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@ -848,12 +813,67 @@ class APIServer:
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</tr>
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<tr>
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<td>offset</td>
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<td>起始偏移量（字节）</td>
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<td>起始偏移量</td>
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</tr>
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<tr>
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<td>data_type</td>
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<td>数据类型（bool/byte/int/dint/real/word/dword）</td>
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</tr>
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</table>
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<h4>请求体</h4>
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<p>{0:True}</p>
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<p>JSON格式: {"value": 值}</p>
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<h4>响应示例</h4>
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<div class="example">
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{
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"status": "success",
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"plc_name": "PLC1",
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"area_name": "DB100_Write",
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"offset": 10,
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"data_type": "int",
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"value": 12345,
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"plc_connection_status": "connected",
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"last_update": 1698754350.789,
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"last_update_formatted": "2023-10-30 14:12:30"
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}
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</div>
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</div>
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<div class="endpoint">
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<h3>Array Write</h3>
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<div>
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<span class="method method-post">POST</span>
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<code>/api/write_array/<plc_name>/<area_name>/<offset>/<data_type></code>
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</div>
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<p>批量写入相同类型的数据到指定区域。</p>
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<h4>路径参数</h4>
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<table>
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<tr>
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<th>参数</th>
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<th>描述</th>
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</tr>
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<tr>
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<td>plc_name</td>
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<td>PLC名称（如PLC1）</td>
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</tr>
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<tr>
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<td>area_name</td>
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<td>区域名称（如DB100_Write）</td>
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</tr>
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<tr>
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<td>offset</td>
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<td>起始偏移量</td>
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</tr>
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<tr>
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<td>data_type</td>
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<td>数据类型（bool/byte/int/dint/real/word/dword）</td>
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</tr>
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</table>
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<h4>请求体</h4>
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<p>JSON格式: {"values": [值1, 值2, ...]}</p>
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<h4>响应示例</h4>
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<div class="example">
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@ -862,7 +882,59 @@ class APIServer:
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"plc_name": "PLC1",
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"area_name": "DB100_Write",
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"offset": 0,
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"length": 1,
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"data_type": "int",
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"count": 10,
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"plc_connection_status": "connected",
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"last_update": 1698754350.789,
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"last_update_formatted": "2023-10-30 14:12:30"
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}
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</div>
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</div>
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<div class="endpoint">
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<h3>Bit Write</h3>
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<div>
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<span class="method method-post">POST</span>
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<code>/api/write_bit/<plc_name>/<area_name>/<byte_offset>/<bit_offset></code>
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</div>
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<p>向指定区域写入单个位。</p>
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<h4>路径参数</h4>
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<table>
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<tr>
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<th>参数</th>
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<th>描述</th>
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</tr>
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<tr>
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<td>plc_name</td>
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<td>PLC名称（如PLC1）</td>
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</tr>
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<tr>
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<td>area_name</td>
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<td>区域名称（如DB100_Write）</td>
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</tr>
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<tr>
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<td>byte_offset</td>
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<td>字节偏移量</td>
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</tr>
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<tr>
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<td>bit_offset</td>
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<td>位偏移量（0-7）</td>
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</tr>
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</table>
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<h4>请求体</h4>
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<p>0或1（表示False或True）</p>
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<h4>响应示例</h4>
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<div class="example">
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{
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"status": "success",
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"plc_name": "PLC1",
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"area_name": "DB100_Write",
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"byte_offset": 10,
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"bit_offset": 3,
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"value": 1,
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"plc_connection_status": "connected",
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"last_update": 1698754350.789,
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"last_update_formatted": "2023-10-30 14:12:30"
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@ -1216,7 +1288,8 @@ class APIServer:
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# 数据访问API
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# ===========================
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# 单个读取接口
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@self.app.route("/api/read/<plc_name>/<area_name>/<int:offset>/<int:length>", methods=["GET"], endpoint="single_read")
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@self.app.route("/api/read/<plc_name>/<area_name>/<int:offset>/<int:length>", methods=["GET"],
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endpoint="single_read")
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def single_read(plc_name, area_name, offset, length):
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"""从指定区域读取数据"""
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data, error, plc_status, update_time = self.cache_manager.read_area(plc_name, area_name, offset, length)
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@ -1228,7 +1301,8 @@ class APIServer:
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"message": error,
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"plc_connection_status": plc_status,
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"last_update": update_time,
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"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time)) if update_time > 0 else "Never"
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"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
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time.localtime(update_time)) if update_time > 0 else "Never"
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}), 400
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return jsonify({
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"status": "success",
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@ -1242,40 +1316,12 @@ class APIServer:
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"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time))
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})
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# 单个读取BOOL类型接口
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@self.app.route("/api/read_bool/<plc_name>/<area_name>/<int:offset>/<int:length>", methods=["GET"], endpoint="single_read_bool")
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def single_read_bool(plc_name, area_name, offset, length):
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"""从指定区域读取数据"""
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data, error, plc_status, update_time = self.cache_manager.read_area_bool(plc_name, area_name, offset, length)
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if error:
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return jsonify({
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"status": "error",
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"plc_name": plc_name,
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"area_name": area_name,
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"message": error,
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"plc_connection_status": plc_status,
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"last_update": update_time,
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"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time)) if update_time > 0 else "Never"
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}), 400
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return jsonify({
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"status": "success",
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"plc_name": plc_name,
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"area_name": area_name,
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"offset": offset,
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"length": length,
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"data": [data], # list(data)
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"plc_connection_status": plc_status,
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"last_update": update_time,
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"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time))
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})
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# 单个写入接口
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# 单个写入接口 (原始字节)
|
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@self.app.route("/api/write/<plc_name>/<area_name>/<int:offset>", methods=["POST"], endpoint="single_write")
|
||||
def single_write(plc_name, area_name, offset):
|
||||
"""向指定区域写入数据"""
|
||||
"""向指定区域写入原始字节数据"""
|
||||
data = request.data
|
||||
if not data:
|
||||
# 如果没有提供数据，返回错误
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "No data provided",
|
||||
@ -1293,7 +1339,8 @@ class APIServer:
|
||||
"message": error,
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time)) if update_time > 0 else "Never"
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(update_time)) if update_time > 0 else "Never"
|
||||
}), 400
|
||||
return jsonify({
|
||||
"status": "success",
|
||||
@ -1306,22 +1353,50 @@ class APIServer:
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time))
|
||||
})
|
||||
|
||||
# 单个写入BOOL类型接口
|
||||
@self.app.route("/api/write_bool/<plc_name>/<area_name>/<int:offset>", methods=["POST"], endpoint="single_write_bool")
|
||||
def single_write_bool(plc_name, area_name, offset):
|
||||
"""向指定区域写入数据"""
|
||||
data = request.data
|
||||
if not data:
|
||||
# 如果没有提供数据，返回错误
|
||||
# 单个数据写入接口 (指定数据类型)
|
||||
@self.app.route("/api/write_data/<plc_name>/<area_name>/<int:offset>/<data_type>", methods=["POST"],
|
||||
endpoint="write_data")
|
||||
@self.requires_auth
|
||||
def write_data(plc_name, area_name, offset, data_type):
|
||||
"""以指定数据类型写入单个数据"""
|
||||
# 检查PLC是否存在
|
||||
client = self.plc_manager.get_plc(plc_name)
|
||||
if not client:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "No data provided",
|
||||
"plc_connection_status": self.cache_manager.plc_connection_status.get(plc_name, "unknown"),
|
||||
"last_update": 0,
|
||||
"last_update_formatted": "N/A"
|
||||
"message": "PLC not found",
|
||||
"plc_name": plc_name
|
||||
}), 404
|
||||
|
||||
# 检查请求数据
|
||||
if not request.is_json:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "Request must be JSON (Content-Type: application/json)",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name
|
||||
}), 400
|
||||
|
||||
success, error, plc_status, update_time = self.cache_manager.write_area_bool(plc_name, area_name, offset, data)
|
||||
json_data = request.json
|
||||
if "value" not in json_data:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "Missing 'value' field",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name
|
||||
}), 400
|
||||
|
||||
value = json_data["value"]
|
||||
|
||||
# 执行写入
|
||||
success, error, plc_status, update_time = self.cache_manager.write_data(
|
||||
plc_name,
|
||||
area_name,
|
||||
offset,
|
||||
data_type,
|
||||
value
|
||||
)
|
||||
|
||||
if error:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
@ -1333,12 +1408,150 @@ class APIServer:
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(update_time)) if update_time > 0 else "Never"
|
||||
}), 400
|
||||
|
||||
return jsonify({
|
||||
"status": "success",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name,
|
||||
"offset": offset,
|
||||
"length": 1,
|
||||
"data_type": data_type,
|
||||
"value": value,
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time))
|
||||
})
|
||||
|
||||
# 批量写入接口 (相同数据类型)
|
||||
@self.app.route("/api/write_array/<plc_name>/<area_name>/<int:offset>/<data_type>", methods=["POST"],
|
||||
endpoint="write_array")
|
||||
@self.requires_auth
|
||||
def write_array(plc_name, area_name, offset, data_type):
|
||||
"""批量写入相同类型的数据数组"""
|
||||
# 检查PLC是否存在
|
||||
client = self.plc_manager.get_plc(plc_name)
|
||||
if not client:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "PLC not found",
|
||||
"plc_name": plc_name
|
||||
}), 404
|
||||
|
||||
# 检查请求数据
|
||||
if not request.is_json:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "Request must be JSON (Content-Type: application/json)",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name
|
||||
}), 400
|
||||
|
||||
json_data = request.json
|
||||
if "values" not in json_data or not isinstance(json_data["values"], list):
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "Missing or invalid 'values' array",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name
|
||||
}), 400
|
||||
|
||||
values = json_data["values"]
|
||||
|
||||
# 执行写入
|
||||
success, error, plc_status, update_time = self.cache_manager.write_array(
|
||||
plc_name,
|
||||
area_name,
|
||||
offset,
|
||||
data_type,
|
||||
values
|
||||
)
|
||||
|
||||
if error:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name,
|
||||
"message": error,
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(update_time)) if update_time > 0 else "Never"
|
||||
}), 400
|
||||
|
||||
return jsonify({
|
||||
"status": "success",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name,
|
||||
"offset": offset,
|
||||
"data_type": data_type,
|
||||
"count": len(values),
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time))
|
||||
})
|
||||
|
||||
# 位写入接口
|
||||
@self.app.route("/api/write_bit/<plc_name>/<area_name>/<int:byte_offset>/<int:bit_offset>", methods=["POST"],
|
||||
endpoint="write_bit")
|
||||
@self.requires_auth
|
||||
def write_bit(plc_name, area_name, byte_offset, bit_offset):
|
||||
"""写入单个位"""
|
||||
# 验证位偏移
|
||||
if bit_offset < 0 or bit_offset > 7:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "Bit offset must be between 0 and 7",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name
|
||||
}), 400
|
||||
|
||||
# 检查请求数据
|
||||
data = request.data
|
||||
if not data or len(data) == 0:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "No value provided (use 0 or 1)",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name
|
||||
}), 400
|
||||
|
||||
# 解析值 (0或1)
|
||||
value = int(data[0])
|
||||
if value not in [0, 1]:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "Value must be 0 or 1",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name
|
||||
}), 400
|
||||
|
||||
# 执行位写入
|
||||
success, error, plc_status, update_time = self.cache_manager.write_bit(
|
||||
plc_name,
|
||||
area_name,
|
||||
byte_offset,
|
||||
bit_offset,
|
||||
bool(value)
|
||||
)
|
||||
|
||||
if error:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name,
|
||||
"message": error,
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(update_time)) if update_time > 0 else "Never"
|
||||
}), 400
|
||||
|
||||
return jsonify({
|
||||
"status": "success",
|
||||
"plc_name": plc_name,
|
||||
"area_name": area_name,
|
||||
"byte_offset": byte_offset,
|
||||
"bit_offset": bit_offset,
|
||||
"value": value,
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time))
|
||||
@ -1359,7 +1572,7 @@ class APIServer:
|
||||
"last_update_formatted": "N/A"
|
||||
}), 400
|
||||
|
||||
requests = request.get_json()
|
||||
requests = request.json
|
||||
if not isinstance(requests, list):
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
@ -1368,11 +1581,11 @@ class APIServer:
|
||||
"last_update": 0,
|
||||
"last_update_formatted": "N/A"
|
||||
}), 400
|
||||
|
||||
# 添加详细日志
|
||||
self.logger.info(f"Received batch read request: {json.dumps(requests)}")
|
||||
|
||||
results = self.cache_manager.batch_read(requests)
|
||||
|
||||
return jsonify(results)
|
||||
except Exception as e:
|
||||
self.logger.error(f"Batch read error: {str(e)}", exc_info=True)
|
||||
@ -1422,43 +1635,6 @@ class APIServer:
|
||||
"last_update_formatted": "N/A"
|
||||
}), 500
|
||||
|
||||
@self.app.route("/api/batch_write_bool", methods=["POST"], endpoint="batch_write_bool")
|
||||
def batch_write_bool():
|
||||
"""批量写入多个区域的数据"""
|
||||
try:
|
||||
if not request.is_json:
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "Request must be JSON (Content-Type: application/json)",
|
||||
"plc_connection_status": "unknown",
|
||||
"last_update": 0,
|
||||
"last_update_formatted": "N/A"
|
||||
}), 400
|
||||
|
||||
requests = request.json
|
||||
if not isinstance(requests, list):
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": "Request must be a JSON array",
|
||||
"plc_connection_status": "unknown",
|
||||
"last_update": 0,
|
||||
"last_update_formatted": "N/A"
|
||||
}), 400
|
||||
|
||||
self.logger.info(f"Received batch write request: {json.dumps(requests)}")
|
||||
|
||||
results = self.cache_manager.batch_write_bool(requests)
|
||||
return jsonify(results)
|
||||
except Exception as e:
|
||||
self.logger.error(f"Batch write error: {str(e)}", exc_info=True)
|
||||
return jsonify({
|
||||
"status": "error",
|
||||
"message": f"Internal server error: {str(e)}",
|
||||
"plc_connection_status": "unknown",
|
||||
"last_update": 0,
|
||||
"last_update_formatted": "N/A"
|
||||
}), 500
|
||||
|
||||
# 区域状态检查
|
||||
@self.app.route("/api/status/<plc_name>/<area_name>", methods=["GET"], endpoint="area_status")
|
||||
def area_status(plc_name, area_name):
|
||||
|
||||
@ -3,6 +3,7 @@ import time
|
||||
import logging
|
||||
from snap7.util import *
|
||||
|
||||
|
||||
class CacheManager:
|
||||
"""PLC数据缓存管理器"""
|
||||
|
||||
@ -91,7 +92,8 @@ class CacheManager:
|
||||
self.cache[plc_name][name]["status"] = self.plc_connection_status[plc_name]
|
||||
# 如果之前有数据，保留旧数据但标记状态
|
||||
if self.last_update[plc_name][name] > 0:
|
||||
self.logger.info(f"PLC {plc_name} area {name} disconnected but keeping last valid data")
|
||||
self.logger.info(
|
||||
f"PLC {plc_name} area {name} disconnected but keeping last valid data")
|
||||
except Exception as e:
|
||||
with self.lock:
|
||||
self.cache[plc_name][name]["status"] = self.plc_connection_status[plc_name]
|
||||
@ -160,7 +162,8 @@ class CacheManager:
|
||||
summary[plc_name][area_name] = {
|
||||
"status": area_status,
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(last_update)) if last_update > 0 else "Never",
|
||||
"last_update": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(last_update)) if last_update > 0 else "Never",
|
||||
"size": area["size"],
|
||||
"type": area["type"]
|
||||
}
|
||||
@ -187,7 +190,8 @@ class CacheManager:
|
||||
"status": area_status,
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": last_update,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(last_update)) if last_update > 0 else "Never",
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(last_update)) if last_update > 0 else "Never",
|
||||
"size": area["size"],
|
||||
"type": area["type"]
|
||||
}
|
||||
@ -502,7 +506,8 @@ class CacheManager:
|
||||
"status": "error",
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time)) if update_time > 0 else "Never",
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(update_time)) if update_time > 0 else "Never",
|
||||
"message": error
|
||||
})
|
||||
else:
|
||||
@ -552,7 +557,8 @@ class CacheManager:
|
||||
"status": "error",
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time)) if update_time > 0 else "Never",
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(update_time)) if update_time > 0 else "Never",
|
||||
"message": error,
|
||||
"offset": offset
|
||||
})
|
||||
@ -603,7 +609,8 @@ class CacheManager:
|
||||
"status": "error",
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": update_time,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(update_time)) if update_time > 0 else "Never",
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(update_time)) if update_time > 0 else "Never",
|
||||
"message": error,
|
||||
"offset": offset
|
||||
})
|
||||
@ -645,7 +652,8 @@ class CacheManager:
|
||||
parsed["status"] = area_status
|
||||
parsed["plc_connection_status"] = plc_status
|
||||
parsed["last_update"] = last_update
|
||||
parsed["last_update_formatted"] = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(last_update)) if last_update > 0 else "Never"
|
||||
parsed["last_update_formatted"] = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(
|
||||
last_update)) if last_update > 0 else "Never"
|
||||
return parsed
|
||||
else:
|
||||
return {
|
||||
@ -653,5 +661,6 @@ class CacheManager:
|
||||
"status": area_status,
|
||||
"plc_connection_status": plc_status,
|
||||
"last_update": last_update,
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(last_update)) if last_update > 0 else "Never"
|
||||
"last_update_formatted": time.strftime("%Y-%m-%d %H:%M:%S",
|
||||
time.localtime(last_update)) if last_update > 0 else "Never"
|
||||
}
|
||||
@ -3,7 +3,8 @@ import logging
|
||||
from threading import Lock
|
||||
import time
|
||||
from snap7.util import *
|
||||
import ast
|
||||
import struct
|
||||
import json
|
||||
|
||||
class Snap7Client:
|
||||
"""Snap7客户端，处理与PLC的通信"""
|
||||
@ -140,23 +141,24 @@ class Snap7Client:
|
||||
|
||||
def write_db(self, db_number, offset, data):
|
||||
"""
|
||||
向DB块写入数据
|
||||
向DB块写入原始字节数据
|
||||
|
||||
Args:
|
||||
db_number: DB编号
|
||||
offset: 起始偏移量
|
||||
data: 要写入的数据
|
||||
data: 字节序列 (bytes, bytearray 或 list of int)
|
||||
|
||||
Returns:
|
||||
bool: 是否写入成功
|
||||
"""
|
||||
values = int(data)
|
||||
print("values:", values)
|
||||
value = bytearray(0)
|
||||
if isinstance(values, int):
|
||||
set_int(value, offset, values)
|
||||
data = value
|
||||
print(data)
|
||||
# 确保data是字节序列
|
||||
if isinstance(data, list):
|
||||
data = bytes(data)
|
||||
elif isinstance(data, int):
|
||||
data = bytes([data])
|
||||
elif not isinstance(data, (bytes, bytearray)):
|
||||
self.logger.error("Data must be bytes, bytearray or list of integers")
|
||||
return False
|
||||
|
||||
if not self.connected and not self.connect():
|
||||
self.logger.warning(f"Write failed: not connected to {self.ip}")
|
||||
@ -172,90 +174,204 @@ class Snap7Client:
|
||||
self.connected = False
|
||||
return False
|
||||
|
||||
def batch_write_db(self, db_number, offset, data):
|
||||
|
||||
def write_bit(self, db_number, byte_offset, bit_offset, value):
|
||||
"""
|
||||
向DB块写入数据
|
||||
写入DB块中的单个位
|
||||
|
||||
Args:
|
||||
db_number: DB编号
|
||||
offset: 起始偏移量
|
||||
data: 要写入的数据
|
||||
byte_offset: 字节偏移量
|
||||
bit_offset: 位偏移量 (0-7)
|
||||
value: 布尔值 (True/False)
|
||||
|
||||
Returns:
|
||||
bool: 是否写入成功
|
||||
"""
|
||||
if not self.connected and not self.connect():
|
||||
self.logger.warning(f"Write failed: not connected to {self.ip}")
|
||||
return False
|
||||
# 验证位偏移量
|
||||
if bit_offset < 0 or bit_offset > 7:
|
||||
raise ValueError("Bit offset must be between 0 and 7")
|
||||
|
||||
try:
|
||||
with self.lock:
|
||||
self.client.db_write(db_number, offset, data)
|
||||
self.logger.debug(f"Wrote {len(data)} bytes to DB{db_number} offset {offset}")
|
||||
return True
|
||||
except Exception as e:
|
||||
self.logger.error(f"Write DB{db_number} error: {e}")
|
||||
self.connected = False
|
||||
return False
|
||||
# 读取包含目标位的字节
|
||||
byte_data = self.read_db(db_number, byte_offset, 1)
|
||||
if not byte_data or len(byte_data) != 1:
|
||||
self.logger.error(f"Failed to read byte at offset {byte_offset} for bit write")
|
||||
|
||||
def write_db_bool(self, db_number, offset, data):
|
||||
# def batch_write_db(self, db_number, offset, data):
|
||||
# """
|
||||
# 向DB块写入数据
|
||||
#
|
||||
# Args:
|
||||
# db_number: DB编号
|
||||
# offset: 起始偏移量
|
||||
# data: 要写入的数据
|
||||
#
|
||||
# Returns:
|
||||
# bool: 是否写入成功
|
||||
# """
|
||||
# if not self.connected and not self.connect():
|
||||
# self.logger.warning(f"Write failed: not connected to {self.ip}")
|
||||
# return False
|
||||
#
|
||||
# try:
|
||||
# with self.lock:
|
||||
# self.client.db_write(db_number, offset, data)
|
||||
# self.logger.debug(f"Wrote {len(data)} bytes to DB{db_number} offset {offset}")
|
||||
# return True
|
||||
# except Exception as e:
|
||||
# self.logger.error(f"Write DB{db_number} error: {e}")
|
||||
# self.connected = False
|
||||
# return False
|
||||
|
||||
# def write_db_bool(self, db_number, offset, data):
|
||||
# """
|
||||
# 向DB块写入数据
|
||||
#
|
||||
# Args:
|
||||
# db_number: DB编号
|
||||
# offset: 起始偏移量
|
||||
# data: 要写入的bool类型数据
|
||||
#
|
||||
# Returns:
|
||||
# bool: 是否写入成功
|
||||
# """
|
||||
# data = data.decode('utf-8')
|
||||
# # 将字符串安全转换为字典
|
||||
# data_dict = ast.literal_eval(data) # 输出: {0: True}
|
||||
# # value = bytearray(1)
|
||||
# value = bytearray(offset+1)
|
||||
# for bit, val in data_dict.items():
|
||||
# set_bool(value, offset, bit, val)
|
||||
# data = value
|
||||
# if not self.connected and not self.connect():
|
||||
# self.logger.warning(f"Write failed: not connected to {self.ip}")
|
||||
# return False
|
||||
#
|
||||
# try:
|
||||
# with self.lock:
|
||||
# print(db_number, offset, data)
|
||||
# self.client.db_write(db_number, offset, data)
|
||||
# self.logger.debug(f"Wrote {len(data)} bytes to DB{db_number} offset {offset}")
|
||||
# return True
|
||||
# except Exception as e:
|
||||
# self.logger.error(f"Write DB{db_number} error: {e}")
|
||||
# self.connected = False
|
||||
# return False
|
||||
|
||||
def write_data(self, db_number, offset, data_type, value):
|
||||
"""
|
||||
向DB块写入数据
|
||||
以指定数据类型向DB块写入单个数据
|
||||
|
||||
Args:
|
||||
db_number: DB编号
|
||||
offset: 起始偏移量
|
||||
data: 要写入的bool类型数据
|
||||
data_type: 数据类型 ('bool', 'byte', 'int', 'dint', 'real', 'word', 'dword')
|
||||
value: 要写入的值
|
||||
|
||||
Returns:
|
||||
bool: 是否写入成功
|
||||
"""
|
||||
data = data.decode('utf-8')
|
||||
# 将字符串安全转换为字典
|
||||
data_dict = ast.literal_eval(data) # 输出: {0: True}
|
||||
# value = bytearray(1)
|
||||
value = bytearray(offset+1)
|
||||
for bit, val in data_dict.items():
|
||||
set_bool(value, offset, bit, val)
|
||||
data = value
|
||||
if not self.connected and not self.connect():
|
||||
self.logger.warning(f"Write failed: not connected to {self.ip}")
|
||||
return False
|
||||
|
||||
# 将高级数据类型转换为字节序列
|
||||
try:
|
||||
with self.lock:
|
||||
print(db_number, offset, data)
|
||||
self.client.db_write(db_number, offset, data)
|
||||
self.logger.debug(f"Wrote {len(data)} bytes to DB{db_number} offset {offset}")
|
||||
return True
|
||||
except Exception as e:
|
||||
self.logger.error(f"Write DB{db_number} error: {e}")
|
||||
self.connected = False
|
||||
if data_type == "bool":
|
||||
# bool类型需要特殊处理（位写入）
|
||||
byte_offset = offset // 8
|
||||
bit_offset = offset % 8
|
||||
return self.write_bit(db_number, byte_offset, bit_offset, value)
|
||||
|
||||
elif data_type == "byte":
|
||||
# 单字节
|
||||
return self.write_db(db_number, offset, [int(value) & 0xFF])
|
||||
|
||||
elif data_type == "int":
|
||||
# 有符号16位整数 (2字节)
|
||||
packed = struct.pack(">h", int(value))
|
||||
return self.write_db(db_number, offset, packed)
|
||||
|
||||
elif data_type == "dint":
|
||||
# 有符号32位整数 (4字节)
|
||||
packed = struct.pack(">l", int(value))
|
||||
return self.write_db(db_number, offset, packed)
|
||||
|
||||
elif data_type == "real":
|
||||
# 32位浮点数 (4字节)
|
||||
packed = struct.pack(">f", float(value))
|
||||
return self.write_db(db_number, offset, packed)
|
||||
|
||||
elif data_type == "word":
|
||||
# 无符号16位整数 (2字节)
|
||||
packed = struct.pack(">H", int(value) & 0xFFFF)
|
||||
return self.write_db(db_number, offset, packed)
|
||||
|
||||
elif data_type == "dword":
|
||||
# 无符号32位整数 (4字节)
|
||||
packed = struct.pack(">I", int(value) & 0xFFFFFFFF)
|
||||
return self.write_db(db_number, offset, packed)
|
||||
|
||||
else:
|
||||
self.logger.error(f"Unsupported data type: {data_type}")
|
||||
return False
|
||||
|
||||
def batch_write_db_bool(self, db_number, offset, data):
|
||||
except Exception as e:
|
||||
self.logger.error(f"Error converting {data_type} value {value}: {e}")
|
||||
return False
|
||||
|
||||
def write_array(self, db_number, offset, data_type, values):
|
||||
"""
|
||||
向DB块写入数据
|
||||
批量写入相同类型的数据数组
|
||||
|
||||
Args:
|
||||
db_number: DB编号
|
||||
offset: 起始偏移量
|
||||
data: 要写入的bool类型数据
|
||||
data_type: 数据类型 ('bool', 'byte', 'int', 'dint', 'real', 'word', 'dword')
|
||||
values: 要写入的值列表
|
||||
|
||||
Returns:
|
||||
bool: 是否写入成功
|
||||
"""
|
||||
if not self.connected and not self.connect():
|
||||
self.logger.warning(f"Write failed: not connected to {self.ip}")
|
||||
try:
|
||||
# 检查是否是支持的数据类型
|
||||
if data_type not in ["bool", "byte", "int", "dint", "real", "word", "dword"]:
|
||||
self.logger.error(f"Unsupported data type for array write: {data_type}")
|
||||
return False
|
||||
|
||||
try:
|
||||
with self.lock:
|
||||
print(db_number, offset, data)
|
||||
self.client.db_write(db_number, offset, data)
|
||||
self.logger.debug(f"Wrote {len(data)} bytes to DB{db_number} offset {offset}")
|
||||
return True
|
||||
except Exception as e:
|
||||
self.logger.error(f"Write DB{db_number} error: {e}")
|
||||
self.connected = False
|
||||
# 对于bool类型，需要特殊处理
|
||||
if data_type == "bool":
|
||||
# 逐个写入bool值
|
||||
for i, value in enumerate(values):
|
||||
if not self.write_data(db_number, offset + i, "bool", value):
|
||||
return False
|
||||
return True
|
||||
|
||||
# 计算总字节数
|
||||
if data_type in ["int", "word"]:
|
||||
item_size = 2
|
||||
elif data_type in ["dint", "real", "dword"]:
|
||||
item_size = 4
|
||||
else: # byte
|
||||
item_size = 1
|
||||
|
||||
total_size = item_size * len(values)
|
||||
|
||||
# 打包所有数据
|
||||
packed_data = b''
|
||||
for value in values:
|
||||
if data_type == "byte":
|
||||
packed_data += struct.pack("B", int(value) & 0xFF)
|
||||
elif data_type == "int":
|
||||
packed_data += struct.pack(">h", int(value))
|
||||
elif data_type == "dint":
|
||||
packed_data += struct.pack(">l", int(value))
|
||||
elif data_type == "real":
|
||||
packed_data += struct.pack(">f", float(value))
|
||||
elif data_type == "word":
|
||||
packed_data += struct.pack(">H", int(value) & 0xFFFF)
|
||||
elif data_type == "dword":
|
||||
packed_data += struct.pack(">I", int(value) & 0xFFFFFFFF)
|
||||
|
||||
# 一次性写入所有数据
|
||||
return self.write_db(db_number, offset, packed_data)
|
||||
|
||||
except Exception as e:
|
||||
self.logger.error(f"Error writing {data_type} array: {e}")
|
||||
return False
|
||||
Reference in New Issue
Block a user