Delta ASD-A3-0121, User Manual

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MODBUS Communication ASDA-A3
9-10
Revision December, 2017
9
RTU mode:
Command Message (Master):
Response Message (Slave):
Slave Address 01H Slave Address 01H
Function 10H Function 10H
Start Data Address
01H (High)
Start Data Address
01H (High)
12H (Low) 12H (Low)
Data Number
(In words)
00H (High)
Data Number
(In words)
00H (High)
02H (Low) 02H (Low)
Data Number
(In bytes)
04H
CRC Check Low E0H (Low)
CRC Check High 31H (High)
Content of the 1st Data
Frame
0BH (High)
B8H (Low)
Content of the 2nd
Data Frame
00H (High)
00H (Low)
CRC Check Low FCH (Low)
CRC Check High EBH (High)
Note: A silent interval of 10 ms is required before and after transmission in RTU mode.