Planning Your Application Program
And the response should be:
Chapter 6
Figure 6-2: Response Comment Structure
6-3-2 Modbus Function Code Introduction
To full-fill the programming requirement, there is a series of function code
standard for user’s reference...
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Table 6-1: Response Comment Structure
Function Code 01
The function code 01 is used to read the discrete output’s ON/OFF sta-
tus of ADAM-5000/TCP in a binary data format. Request message
format for function code 01:
Command
Body
Station
Address
Function
Code
Start
Address
High
Byte
Start
Address
Low
Byte
Requested
Number of
Coil
High
Byte
Requested
Number of
Coil Low
Byte
ADAM-5000/TCP User’s Manual
6-33
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