Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 299)

Publication 1757-UM006A-EN-P May 2002
1788-CN2FF Installation Example F-51
Troubleshooting an
Application The Fieldbus AI Side: After you have created the FF configuration,
click on the blue eyeball to see that you are getting data from all the
AI FBs.
If you are getting “BAD Data” from a device, check first to see that the
Resource Block and the Transducer Blocks in that device are in the
“Auto” mode.
To see the Transducer Block, you must uncheck the “T” in the top
toolbar that initially had a red X through it.
The Fieldbus AO Side: The AO FB in the output device must be in the
Cascade Mode to accept inputs from the MAO FB.
If the data from the MAO module is listed as BAD, you are probably
not providing the required FF status byte with your output PV. To
show good data, the FF Status Byte needs to have a numeric value
between -112 and -128. The best approach is to copy the FF status
from the inputs that are supplying the PVs that were manipulated to
produce the AO.