标签：modbus 二次 参考 parallel 节点 设置 用户手册 _id baidu
Modbus设备
格控TCP系列507E、508M、508D
1、IO端口多：508D有32个DI口、508M有24个DO口、507E有8个DI和8个DO口。
2、原生支持有线Modbus-TCP协议。
3、价格便宜，差评少。
4、支持二次开发：后期计划将普通设备逻辑写入里面，就可以脱离服务器。
5、产品相关资料 ：格控资料
准备
格控设备在说明书里详细的说明了设备的设置方式，在此就不多加叙述（不同品牌的设置方式存在差异，均需详细参考说明书）。
1、给设备分配与你所在网段匹配的ip地址。
eg. 我的网段是192.168.0.X，我设置的508M：192.168.0.203、508D：192.168.0.202
2、使用附赠的测试软件，测试设备是否已正常连接。
3、node-red安装节点node-red-contrib-modbus。
node-red相关设置
1、在整个过程中主要使用modbus-flex-write、modbus-flex-getter两个节点。
2、modbus-flex-getter轮询：获取线圈或寄存器信息
3、配置服务端
4、 写入操作指令
5、串成流以后就如下所示
[ { "id": "13aff178.470a47", "type": "inject", "z": "f570f583.ba8418", "name": "", "topic": "", "payload": "", "payloadType": "date", "repeat": "0.2", "crontab": "", "once": true, "onceDelay": "0", "x": 180, "y": 3160, "wires": [ [ "ff699d5b.46a718" ] ] }, { "id": "ff699d5b.46a718", "type": "function", "z": "f570f583.ba8418", "name": "Read 0-31 on Unit 1 FC2", "func": "msg.payload = { value: msg.payload, ‘fc‘: 2, ‘unitid‘: 1, ‘address‘: 0 , ‘quantity‘: 32 };\nreturn msg;", "outputs": 1, "noerr": 0, "x": 390, "y": 3160, "wires": [ [ "25928808.805ab" ] ] }, { "id": "25928808.805ab", "type": "modbus-flex-getter", "z": "f570f583.ba8418", "name": "获取按键状态", "showStatusActivities": false, "showErrors": false, "logIOActivities": false, "server": "bc23592e.d784c8", "useIOFile": false, "ioFile": "", "useIOForPayload": false, "x": 620, "y": 3160, "wires": [ [ "aebee8cf.f142a8" ], [] ] }, { "id": "efe7fdc6.38e45", "type": "comment", "z": "f570f583.ba8418", "name": "定时轮询", "info": "", "x": 160, "y": 3120, "wires": [] }, { "id": "e74381c4.affad8", "type": "inject", "z": "f570f583.ba8418", "name": "start", "topic": "", "payload": "", "payloadType": "date", "repeat": "", "crontab": "", "once": true, "onceDelay": "0", "x": 170, "y": 3280, "wires": [ [ "25cb2616.ce8292" ] ] }, { "id": "25cb2616.ce8292", "type": "function", "z": "f570f583.ba8418", "name": "Read 0-31 on Unit 1 FC2", "func": "msg.payload = { value: msg.payload, ‘fc‘: 2, ‘unitid‘: 1, ‘address‘: 0 , ‘quantity‘: 32 };\nreturn msg;", "outputs": 1, "noerr": 0, "x": 390, "y": 3280, "wires": [ [ "f3f8587.497f2a8" ] ] }, { "id": "f3f8587.497f2a8", "type": "modbus-flex-getter", "z": "f570f583.ba8418", "name": "获取按键状态", "showStatusActivities": false, "showErrors": false, "logIOActivities": false, "server": "bc23592e.d784c8", "useIOFile": false, "ioFile": "", "useIOForPayload": false, "x": 620, "y": 3280, "wires": [ [ "4aba02be.620b74", "a1768992.a4da3" ], [] ] }, { "id": "beb6a924.cb22c", "type": "comment", "z": "f570f583.ba8418", "name": "完整轮询", "info": "", "x": 160, "y": 3240, "wires": [] }, { "id": "4aba02be.620b74", "type": "delay", "z": "f570f583.ba8418", "name": "", "pauseType": "delay", "timeout": "5", "timeoutUnits": "seconds", "rate": "1", "nbRateUnits": "1", "rateUnits": "second", "randomFirst": "1", "randomLast": "5", "randomUnits": "seconds", "drop": false, "x": 460, "y": 3380, "wires": [ [ "25cb2616.ce8292" ] ] }, { "id": "aebee8cf.f142a8", "type": "debug", "z": "f570f583.ba8418", "name": "", "active": true, "tosidebar": true, "console": false, "tostatus": false, "complete": "false", "x": 830, "y": 3160, "wires": [] }, { "id": "a1768992.a4da3", "type": "debug", "z": "f570f583.ba8418", "name": "", "active": true, "tosidebar": true, "console": false, "tostatus": false, "complete": "false", "x": 830, "y": 3280, "wires": [] }, { "id": "bc23592e.d784c8", "type": "modbus-client", "z": "", "name": "", "clienttype": "tcp", "bufferCommands": true, "stateLogEnabled": false, "tcpHost": "192.168.0.203", "tcpPort": "502", "tcpType": "DEFAULT", "serialPort": "/dev/ttyUSB", "serialType": "RTU-BUFFERD", "serialBaudrate": "9600", "serialDatabits": "8", "serialStopbits": "1", "serialParity": "none", "serialConnectionDelay": "100", "unit_id": "1", "commandDelay": "1", "clientTimeout": "1000", "reconnectOnTimeout": true, "reconnectTimeout": "2000", "parallelUnitIdsAllowed": true }]
6、改变设备状态就更简单了
标签：modbus 二次 参考 parallel 节点 设置 用户手册 _id baidu
原文地址：https://www.cnblogs.com/kiddfu/p/12350104.html
