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Diagnostics and Troubleshooting PLX3x Series ♦ Multi-Protocol Gateways
User Manual
Page 32 of 215 ProSoft Technology, Inc.
January 25, 2018
3.1.1 Main Gateway LEDs
This table describes the gateway front panel LEDs.
LED State Description
PWR
(Power) Off Power is not connected to the power terminals or source is
insufficient to properly power the gateway (208 mA at 24 VDC is
required).
Solid Green Power is connected to the power terminals.
FLT
(Fault) Off Normal operation.
Solid Red A critical error has occurred. Program executable has failed or
has been user-terminated and is no longer running. Press the
Reset button or cycle power to clear the error.
CFG
(Configura
tion) Off Normal operation.
Solid Amber The unit is in configuration mode. Either a configuration error
exists, or the configuration file is being downloaded or read. After
power-up, the gateway reads the configuration, and the unit
implements the configuration values and initializes the hardware.
This occurs during power cycle or after you press the
Reset
button.
ERR
(Error) Off Normal operation.
FlashingAmber An error condition has been detected and is occurring on one of
the application ports. Check configuration and troubleshoot for
communication errors.
Solid Amber This error flag is cleared at the start of each command attempt
(master/client) or on each receipt of data (slave/adapter/server). If
this condition exists, it indicates a large number of errors are
occurring in the application (due to bad configuration) or on one or
more ports (network communication failures).
NS
(Network
Status) for
EIP
protocol
only Off No power or no IP address
Solid Red Duplicate IP address
Solid Green Connected
Flashing Red Connection timeout
Flashing Green IP address obtained; no established connections
Alternating Red
and Green Flash Self-test
MS
(Module
Status) for
EIP
protocol
only Off No power
Solid Red Major fault
Solid Green Device operational
Flashing Red Minor fault
Flashing Green Standby
Alternating Red
and Green Flash Self-test