Programming Modbus communication
3
Introduction
Subject of section
What's in this
Chapter?
This section describes the Programming process during set-up of Modbus communication.
This chapter contains the following topics:
Topic
Modbus Master Communication Function
Modbus Slave Communication Function
Using the SEND_REQ communication function
Example 1: SEND_REQ function with Echo request
Example 2: SEND_REQ function with Word read request
Example 3: SEND_REQ Function with Bit Read Request
Example 4: READ_VAR function for reading bits
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