116 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 IB12XOB4MSGdata[0].0…31,
and the final 8 bits are in IB12XOB4MSGdata[1].0…7. Map these 40
bits according to Instance 860. An easy method to do this mapping is to
create a user-defined tag (UDT) for Instance 860. Once complete, it
appears as shown in Figure 49
.
Figure 49 - Instance 860 UDT
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