Version 7.17 adds support for MODBUS TCP protocol. There is a protocol definition file for it and support for building and sending MODBUS TCP packets using MODBUS Send.
In addition, the following two objects are available for user scripts: TCP Manager Object and TCP Session Object. TCP Session Object may be used instead of Serial Terminal Session Object in a call to **IModbusManager.createSession to create a MODBUS Send Session Object over MODBUS TCP protocol. (Deprecated).