136 Rockwell Automation Publication 1791ES-UM001G-EN-P - November 2016
Appendix A Get Diagnostic Status from Modules by Using Explicit Messaging
The first 32 bits of the instance are in IB8XOBV4MSGdata[0].0…31,
and the final 8 bits are in IB8XOBV4MSGdata[1].0…7. Map these 40
bits according to Instance 852. An easy method to do this mapping is to
create a user-defined tag (UDT) for Instance 852. Once complete, it
appears as shown in Figure 70
.
Figure 70 - Instance 852 UDT
I/O Data Supported by Each
Module
Table 41 shows a summary of default I/O data by module.
Table 41 - Default I/O Data
Module Cat. No. Safety Connection Assembly Instance (hex)
1791ES-IB16 Safety 225 and 23
1791ES-IB8XOBV4 Safety 204 and 234
1732ES-IB12XOBV2 Safety 20C and 233
1732ES-IB12XOB4 Safety 20C and 233
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