Modbus TCP

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Установка и настройка плагина ModBus TCP

  1. Убедитесь, что у вас есть лицензии ModBus TCP.
     
  2. Make sure you have the latest versions of LT Setup, LT Server, ModBus TCP plugin installed
     
  3. Configure plugin before enabling.
     

     

     
    IP - IP address of a ModBus TCP device, make sure that you can ping this device
    Port - 502 it is default port in most cases, but check documentation of your ModBus TCP device
    Master/Slave - this option means that you add a Master device or Slave device
  4. Enable plugin.
     

Examples

  1. Go to Scripts page and create Blockly script
     
  2. Add ModBus block from Other tab
     
  3. Choose ModBus TCP com-port from dropdown list and fill other fields. Save script and try it.
     

Logs

Starting Service of MODBUS TCP plugin for Larnitech system...
Started Service of MODBUS TCP plugin for Larnitech system.
Compiled: Jul  7 2021 13:59:57
INF: Settings:
INF: debug yes - Debug mode is enabled
INF: modbus-devices 192.168.1.110:502:0
INF: Modbus 192.168.1.110:502:0 thread created
INF: Modbus 192.168.1.110:502:0 thread started
DEBUG: Modbus client: connected to 192.168.1.110:502:0 - Plugin connected to the device
DEBUG: Modbus client: waiting for messages for 192.168.1.110:502:0
DEBUG: Add message 01050011FF00 to 192.168.1.110:502:0 queue
DEBUG: Modbus thread unlocked for 192.168.1.110:502:0
DEBUG: Modbus client: send packet to 192.168.1.110:502:0 0x01050011FF00 - Send ‘ON’ to first coil
DEBUG: Modbus client: confirmation from 192.168.1.110:502:0 0x01050011FF00 - Right feedback from the device
DEBUG: Modbus client: waiting for messages for 192.168.1.110:502:0
DEBUG: Add message 010500110000 to 192.168.1.110:502:0 queue
DEBUG: Modbus thread unlocked for 192.168.1.110:502:0
DEBUG: Modbus client: send packet to 192.168.1.110:502:0 0x010500110000 - Send ‘OFF’ to first coil
DEBUG: Modbus client: confirmation from 192.168.1.110:502:0 0x010500110000 - Right feedback from the device
DEBUG: Modbus client: waiting for messages for 192.168.1.110:502:0