Modbus/Tcp - Jetter JC-120MC User Manual

10 Programming
10.15

Modbus/TCP

Introduction
Enabling the
Modbus/TCP feature
Required programmer's
skills
Contents
448
This chapter describes the functions of the Modbus/TCP server and client
integrated into JC-120MC.
On the controller JC-120MC, the feature Modbus/TCP is always enabled.
That is, bits 4 and 5 in Web Status register 202930 are always set.
To be able to use the functions described in this chapter, the user must be
familiar with the following:
 Modbus/TCP and supported commands
 IP networks
Topic
Modbus/TCP server .................................................................................... 449
Modbus/TCP client ...................................................................................... 455
Modbus/TCP client with STX variables ....................................................... 457
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