M580 Hot Standby System Diagnostics

Introduction

The M580 Hot Standby system continuously monitors the system state, and adds to its diagnostic buffer an entry for each detected error or change of state event. You can view and handle this collection of events using the following tools:

Alarm Viewer web page, for events relating to the selected CPU.
Diagnostic Viewer in Control Expert, for detected events relating to the Hot Standby system.

M580 Hot Standby System Messages

Each detected system event presents:

A message describing the event type.
An explanatory text symbol entry, more particularly describing the event.
A numeric decimal identifier, representing the combination of message and symbol.

The M580 Hot Standby system can display the following messages

ID (dec)	Message (Event Text)	Symbol (Event Type)	Possible Cause
14101	Switch from Wait to Primary	No Error	–
14102	Switch From Wait to Standby	Linked to Primary. No Error	–
14103	Switch from Standby to Primary	No remote PLC connection	No Hot Standby link and EIO link between CPUs.
14104	Switch from Standby to Primary	Remote PLC not Primary	Loss of power on former primary. Former primary stopped. Error detected on former primary.
14105	Switch from Standby to Wait	Hsby Link Error	Break in Hot Standby link cable Transceiver inoperable in either CPU.
14106	Switch from Standby to Stop	PLC not in RUN	Standby CPU stopped.
14107	Switch from Primary to Wait	Loc RIO err and no peer RIO err	Former primary CPU lost connection to all (e)X80 EIO adapter modules; former standby (now primary) CPU maintains connection to at least one (e)X80 EIO adapter module.
14108	Switch from Primary to Wait	Swap Command	Former primary CPU received swap command.
14109	Switch from Primary to Stop	PLC not in RUN	Former primary CPU stopped (PAC in STOP or one task in HALT)
14110	Switch from Primary to Wait	PLC_B linked to Primary	–
14111	Peer PLC disconnection on RIO Link	RIO Link Error	Two breaks in Ethernet RIO cable have isolated the remote CPU.
14112	Peer PLC disconnection on Hsby Link	Hsby Link Error	Break in Hot Standby link cable Transceiver inoperable in either CPU.
14113	Mismatch Error	FW mismatch	Different firmware versions in each CPU.
14114	Mismatch Error	Logic mismatch	Different application logic revisions running in each CPU.
14115	Mismatch Error	Application mismatch	Different applications running in each CPU.
14116	Degraded Hsby Data transfer	Data Layout mismatch	Online changes to data structure have been made to primary CPU, but not transferred to standby.
14117	Bad peer rotary switch config	Not in a PLC_A and PLC_B config	Rotary switch settings do not specify an A and a B PAC.
14118	Power supply error	Loss of redundancy	One of the BMXCPS4002 redundant power supply units is no longer functioning.