Comtrol Modbus TCP User Guide - Manual (Page 91)

DeviceMaster UP Modbus/TCP User Guide: 2000447 Rev. I Appendix A. Programming the PLC via Concept- 91
Set Transmit Sequence Number via Write Multiple Registers Message
A.2.2.4. Set Transmit Sequence Number via Write Multiple Registers Message
The following screen depicts a Write Multiple Registers message used to initialize the transmit data sequence
number in ladder logic.
Where:
SLAVEREG Refers to the port transmit sequence number address (+1 for use with Concept).
NO_REG Set to 1.
REG_WRIT The memory location where the transmit sequence number resides on the PLC.
DONE The done flag.
ERROR The error flag.
STATUS The message status word.
AddrFld This contains the PLC Modbus/TCP slot/index and IP address of the DeviceMaster UP.