Appendix B. ENIP-2: Modbus
ENIP-2, manual, ENIP.411187.002. Rev. 11.2020
72
Address
Value
dec
hex
31
0x1F DIO32
Here is an example of request with function code 01 if ENIP-2 has slave address 01, DIO
requested from 2 to 13
Slave ad-
dress
Function
code
Data address of the
first coil
Number of coil
CRC
01
01
00
01
00
0С
9D
CF
And this is the response to previous request
01
01
02
00
51
78
Second and third byte describe DIO status
byte
02
00
bit 0 0 0 0 0 0 1 0 0 0 0 0 0
0
0
0
DIO 9 8 7 6 5 4 3 2
13 12 11 10