Most SIXNET stations and I/O modules can be configured to send and/or receive Modbus RTU or Modbus ASCII messages. The "Modbus ASCII Slave" and "Modbus RTU Slave" modes for serial ports allow the station to respond to Modbus commands from a Modbus master device such as a PLC or touchscreen display. Here are some of the Modbus capabilities of SIXNET I/O:
Most SIXNET stations and I/O modules can receive Modbus RTU or ASCII messages through their serial port(s) and/or Ethernet port. Each serial port can be individually configured to recognize Modbus ASCII or Modbus RTU protocol. A SIXNET Ethernet port will recognize either protocol automatically. No protocol configuration is necessary.
IPm stations, VersaTRAK RTUs, SixTRAK programmable gateways and the ET-GT-ST-# Ethernet I/O Concentrators can be configured to send Modbus ASCII or Modbus protocol over their serial port(s). The "Modbus ASCII Master" and "Modbus RTU Master" modes allow the station to send Modbus commands to Modbus compatible devices such as loop controllers and motor drives.
IPm stations with version 1.5 or newer firmware can be configured to send Modbus/UDP or Modbus/TCP protocol over their Ethernet port(s) to Modbus compatible devices.
SIXNET stations will respond to Modbus commands sent to their own station number.
The Modbus master and slave modes for serial ports are selected from within the configuration windows for the station.