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
