Delta ASDA-A3 Series User Manual page 477

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