
104S v2 ♦ ProLinx Gateway Diagnostics and Troubleshooting
(Firmware v2.xx) Protocol Manual
Page 104 of 157 ProSoft Technology, Inc.
March 19, 2010
4.2 LED Indicators
Troubleshooting the operation of the IEC Slave port can be performed using
several methods.
The first and quickest is to scan the LEDs on the gateway to determine the
existence and possibly the cause of a problem. This section provides insight into
the operation of the Serial Port status LEDs. Information on the gateway’s other
LEDs can be found in the ProLinx Reference Guide.
LEDs for Port 0 Serial Port
Some ProLinx gateways will include an extra three serial ports. Each of these
serial ports has two LEDs indicating status.
LED Color Description
Port 0 - ACT Off No activity on the port.
Green Flash The port is either actively transmitting or receiving data
Port 0 - ERR Off
Normal state. When off and Port Active led is indicating activity,
there are no communication errors
Red
On or
Flashing
Activity on this led indicates some communication error was
detected, either during transmit or receive
4.2.1 Ethernet LED Indicators
LED State Description
Data Off No activity on the Ethernet port.
Green Flash The Ethernet port is actively transmitting or receiving data.
Link Off
No physical network connection is detected. No Ethernet
communication is possible. Check wiring and cables.
Green Solid
Physical network connection detected. This LED must be on
solid for Ethernet communication to be possible.
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