Rockwell Automation 1770-KF2 Data Highway or Highway Plus Interface Module User Manual - Manual (Page 186)

Error Reporting
Chapter 7
7Ć31
47. Number of broadcast messages received.
48. Number of broadcast messages that were successfully received.
49. Number of messages seen that were not for this station.
50. Number of DLE EOTs sent.
51. Number of calls received.
52. Number of times that phone was hung up by the module.
53. Number of times that DCD was lost.
54. Number of times that the phone was hung up because of a DCD
timeout.
1771ĆKG Error Counters
MODEM CHANNEL COUNTERS
0. 16-bit count of the number of times the station attempted to send a
message.
1. Not used.
2. 16-bit count of the number of messages that were successfully
transmitted and ACKed.
3. Not used.
4. 16-bit count of the number of ACKs that were received.
5. Not used.
6. Number of ACKs successfully passed from the receiver’s separator
to the transmitter.
7. Number of NAKs received.