Chapter 9 Communications
RTU Mode:
Command message (Master): Response message (Slave):
Slave Address 01H Slave Address 01H
Function 10H Function 10H
01H (High) 01H (High)
Starting data
address
12H (Low)
Starting data
address
12H (Low)
00H (High) 00H (High)
Number of data
(In Word)
02H (Low)
Number of data
(In Word)
02H (Low)
CRC Check Low E0H (Low)
Number of data
(In Byte)
04H
CRC Check High
31H (High)
0BH (High)
Content of
first data
address
B8H (Low)
00H (High)
Content of
second data
address
00H (Low)
CRC Check Low FCH (Low)
CRC Check High EBH (High)
Please note:
In RTU mode, a silent interval of more than 10ms is needed before and after transmission.
9-12 Revision January 2011
Call 1(800)985-6929 for Sales
Call 1(800)985-6929 for Sales
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