User`s manual

GFK-2334A 5-1
PROFIBUS Master Status and Diagnostics
There are four methods for obtaining status and diagnostic data for the PROFIBUS
Master CPU:
 Observing and interpreting the LED indicators on the PROFIBUS CPU366, page 5-2
 Using the Slave Status Bit Array, page 5-3
 Observing the PLC Fault Table, page 5-4
 Using Communications Request (COMMREQ) ladder logic instructions to instruct the
PROFIBUS Master to gather diagnostic or status data and report it to the PLC CPU,
page 5-5
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Chapter