Modbus RTU Supported Devices

The Modbus RTU Communications option supports communications to the following programmable controllers:

  • Series Six with CCM3 card (Version 1.06 or later)
  • 3720 ACM Electronic Power Meter (Firmware Version 1.5 or later is required if you want to read/write negative numbers)
  • Modicon 484
  • Modicon 584
  • Modicon 884
  • Modicon 984
  • Modicon Micro 80
  • Generic PLC - This is a special device model for generic devices where the user defines the device characteristics.
  • DYN_PLC - This is a special device model for generic devices. The range of each of the memory types is determined by the device communication interface.
  • STAT_PLC - This is a special device model for generic devices where the user defines the device characteristics and starting addresses for points are validated by reading them from the device.