Rockwell Automation 9330-CC ControlGuardian User's Guide - Manual (Page 117)

Preface ControlGuardian User’s Guide
8-8
Table 8.E
PLC-5/10, -5/12, -5/15, -5/25 Diagnostic Counters
Counter: Tells you the number of:
Messages Transmitted Messages sent to another device on the DH+ link
Messages Received Messages received from another device on the DH+ link
Commands Generated Messages that request some action from another device on the
DH+ link
Requests Executed Message requests executed
Reply Sent Message replies sent
ACK Timeouts Acknowledgement time ran out
NAK No Mem Rec’d Messages not acknowledged because the destination did not have
enough memory to receive the message
Claim Token (DH+) Claim token entered
Network Dead (DH+) The network lost connections
NAK No Mem Sent Messages not acknowledged because there was not enough
memory to receive it
CRC Errors Messages corrupted
Duplicate Packets Duplicate messages received
Token Timeouts (DH+) Token pass timeout
DH+ Token was not delivered
Retries Message retries
Adapter Timeouts Scanner/adapter communication time ran out
Undeliverable Messages not delivered (no more retries)