Coil Mapping
Coil Addresses
0 Digital
Output
0
1 Digital
Output
1
2 Digital
Output
2
3 Digital
Output
3
4 Digital
Output
4
5 Digital
Output
5
6 Digital
Output
6
7 Digital
Output
7
Examples:
MBA= ,7,array[]
Request to read exception status
Packets:
The command MBA= ,7,array[] results in the following packets being sent, when one RIO is the master, and
another RIO is the slave, communicating over handle A, port 502(Modbus). Assume digital outputs, in
descending order from 15-0 are:0,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0. ($55AA)
Request
Response
Field Name
(hex)
Field Name
(hex)
Function 07
Function
07
Output
Data
AA
array[0] on the master RIO will equal 170 in this example.
32 Chapter 3 Communication
RIO-47xxx
