The Modbus Integration Kit for PAC Control (part number PAC-INT-MB) allows Opto 22 hardware controllers using PAC Control to communicate using the Modbus Serial RTU, Modbus Serial ASCII, or Modbus/TCP protocol. It also allows a SoftPAC software-based controller to communicate using Modbus/TCP.
As of September 2015 this kit was redesigned for ease of use. This technical note describes the new integration kit and gives you some important information for using it. Complete documentation for the kit is included in the kit's sample strategy and subroutines.