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.