Delta ASDA-A3 Series User Manual page 615

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
st
1 Data Frame
Content of the
nd
2 Data Frame
CRC Check Low
CRC Check High
Note: a silent interval of 10 ms is required before and after each 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)