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IM 04L51B01-01EN
1.19.6 Setting the FAIL Relay and InstrumentInformationOutput(/FLoption)
Path
GX/GP: MENU key > Browse tab > Setting > Setting menu System settings > Status
relay
Web application: Config. tab > System settings > Status relay
Hardware configurator: System settings > Status relay
Description
Setup Item Selectable Range or Options Default Value
Fail relay Fail, Status Fail
Memory/Media status
1
Off, On Off
Measurement error
1
Off, On Off
Communication error
1
Off, On Off
Record stop
1
Off, On Off
Alarm
1
Off, On Off
1 Appears when Fail relay is set to Status.
Fail relay
Set whether to output CPU errors to the relay or the instrument status to the relay.
Options Description
Fail Outputs failures.
Status Outputs instrument information.
Memory/Media status
Set this to On to output the internal memory and SD memory card status to the relay.
Measurement error
Set this to On to output measurement errors to the relay.
Communication error
Set this to On to output communication errors to the relay.
Record stop
Set this to On to output record stop to the relay.
Alarm
Set this to On to output alarms to the relay. Alarms whose indications are hidden ( for
details, see page 1-19 in section 1.2.2, “Setting Alarms”) are not output to the relay. Relay output
stops after all alarms are released (if no other relay output conditions are met).
Explanation
FAIL
When a failure occurs in the GX/GP CPU, a relay contact signal (1 signal) is output. The
relay is energized when the CPU is normal and is de-energized when a CPU error occurs.
Therefore, relay output is carried out also when the power is off (including a power failure).
You cannot change this behavior.
Relay Operation
NO C NC
During normal operation
NO C NC
When a Failure Occurs
NO C NC
When power is turned off
1.19ConfiguringSystemSettings(Timezone,displaylanguage,statusrelay,etc.)
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