3.2 Control Panel Display
VS-212DN is equipped with 2 LED lamps (MS and NS) which serve as DeviceNet status indicators.
The "MS" indicator shows the module status, and the "NS" indicator shows the network status.
MS Indicator
LED Status VS-212DN Status Description
OFF No power No power is being supplied.
Green ON Normal Normal operation is in progress.
Green blinking No setting Configuration is not completed or is incorrect.
Red blinking Minor error Recovery is possible by changing a setting, etc.
Red ON Non-recovery error
VS-212DN recovery from this error is not possible.
Replacement is required.
Green/red blinking Self-diagnosis VS-212DN self-diagnosis is in progress.
NS Indicator
LED Status VS-212DN Status Description
OFF No power or offline
No power is being supplied to the VS-212DN. Online status is not
established. ("MS" minor error, etc.)
Green blinking Online/disconnected VS-212DN is not recognized by master unit.
Green ON Online/connected VS-212DN is recognized by master unit.
Red blinking
Minor
communication error
Recovery is possible by changing a setting, etc.
Red ON Critical error
Error which disables network communications.
(Duplicate node addresses, circuit malfunction, etc.)
Green/red blinking VS-212DN communication failure.
Other Errors
LED Status Description
Orange (simultaneous red and green) MS,
NS lamps are both ON
VS-212DN power voltage drop detected.
MS and NS red ON A DeviceNet CPU watchdog timer error has occurred.
MS red ON, NS orange ON
Watchdog timer error has occurred at both the DeviceNet CPU and the
control CPU.
MS red ON, NS unchanged
(communication enabled)
A watchdog timer error has occurred at the control CPU.
MS orange ON, NS unchanged
(communication enabled)
Communication error has occurred at the control CPU and at the
DeviceNet CPU. Recovery is possible by clearing the communication
error status.
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