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Page 28 AN-X-MOD (Master)
November 2011
All items are of the form
offset [optional], ItemKeyword
If you create the ControlLogix configuration automatically when you
autoconfigure the S908 network, these items are mapped by default to
ClxSlot 15.
TIP
If you map the diagnostic data to a separate connection, use a long RPI
to reduce the Ethernet traffic, since the diagnostics do not need to be
updated as frequently as I/O data.
Diagnostic Counters
The AN-X-MOD (Master) maintains the following diagnostic counters.
Counter
Offset
Description
TxCount
0
Transmitted network frames
RxGood
1
Received frames with good status
RxPrtcl
2
Received frames with a protocol error
RxNoise
3
Received frames with a noise error
RxTout
4
Receive timeout. Scanner sent a message to a
drop but did not receive a reply within the
timeout period
RxCrc
5
Received frames with a CRC error
RxOvr
6
Received frames too long
RxAbort
7
Received frames with an abort error
RxShort
8
Received frames too short
RxErrMask
9
Error mask for protocol errors
To map the diagnostic counters, include a line with the keyword
DiagCtrs in the input section of a connection. This maps all ten
diagnostic counters; they cannot be mapped individually.
Examples:
, DiagCtrs
10, DiagCtrs ; offset 10