Rockwell Automation 1757-ABRIO Process Remote I/O (RIO) Communication Interface Module - Manual (Page 83)

Publication 1757-UM007D-EN-P - December 2008 81
Monitoring the 1757-ABRIO Module Chapter 7
Monitoring Diagnostic
Counters The 1757-ABRIO module maintains diagnostic counters that indicate
the state of communication on the entire RIO network, as well as
counters related to each chassis. It also maintains an active rack list.
To monitor the diagnostic counters, select Tools>Monitor Diagnostic
Counters or click the Start the Diagnostics Counters Monitor button.
Active Rack List
The active rack list shows where the racks are located. If the bit is set
there is a rack at that rack number and starting I/O group. It does not
show the rack size.
The rows represent starting I/O groups. The columns represent the
rack numbers.
Global Diagnostic Counters
The global diagnostic counters consist of the following.
Global Diagnostic Counters
Counter Description
Tx This counter increments each time the 1757-ABRIO module transmits a
packet.
RxGood This counter increments when the 1757-ABRIO module receives a good
packet.
RxTout This counter increments when the 1757-ABRIO module sends a packet
but does not receive a reply.
RxBadCRC This counter increments when the 1757-ABRIO module receives a
packet with a bad CRC. Check cabling and termination on the RIO
network.
RxNoise This counter increments when the 1757-ABRIO module hears a carrier
without receiving a packet. Check cabling and termination on the RIO
network.
RxAbort This counter increments when the 1757-ABRIO module receives an
opening flag, then the packet ends without a closing flag.
PrtclErr This counter increments when the 1757-ABRIO module receives a
packet that makes no sense in terms of the protocol.
UpdAvg Average update time for all configured racks. This is the average of the
previous 64 updates.
UpdMin Minimum update time for all configured racks.
UpdMax Maximum update time for all configured racks.