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M-7065 User’s Manual
Ver2.0, Dec. /200
8
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108
Response:
00
Address
1 Byte
1-2 47
01
Function code
1 Byte
0x04
02
Byte Count
1 Byte
Byte count of response
(B=2 * word count)
03~
Register values
(B*2 ) B yte
Register values
Error Response:
00
Address
1 Byte
1-2 47
01
Function code
1 Byte
0x83
02
Exception code
1 Byte
Refer to Modbus standard
for more details
Examples:
Command:05 04 01 E2 00 02 [ D1 85 ]
Response:05 04 04 20 60 00 00 B5 9A
Reads module’s name
Command:01 04 01 E4 00 01 [ 70 01 ]
Response:01 04 02 00 01 78 F0
Reads address of modules
Command:01 03 00 00 00 02 [ C4 0B ]
Response:01 03 04 00 15 00 15 2A 38
Reads DI count of modules