GE RX3i PROFINET User Manual page 29

Chapter 2. LED Operation and Connector Details
Fatal Error Codes
2.1.8.1
When the PNS encounters a fatal error, it will blink an error code pattern on the OK LED with an Amber
color or on the STATUS LED with a Green color. In this mode all LEDs flash Green once to indicate the start
of the error code. Next the OK or STATUS LED blinks a 4-digit decimal error code. The LED first blinks to
indicate the most significant error digit, then after a brief pause blinks again to indicate the next
significant error digit and so forth. After another brief pause, all LEDs flash Green again and the error code
pattern repeats. Repetitions continue indefinitely until the module is power-cycled.
Module Identification
2.1.8.2
The LEDs on a PNS module can be commanded to repeatedly turn ON and OFF in a special sequence, to
help locate or identify the module:

First the green LEDs are turned on in the following circular order: OK, LAN, STATUS, CONN, PORT 4,
PORT 3, PORT 2, PORT 1. There is a short delay between turning on each LED.

The LEDs are then turned off in the same order. There is a short time delay between turning off each
LED.
The Module Identification LED Pattern is initiated by the PROFINET DCP Identify Device command. Module
Identification can be initiated using the Proficy Machine Edition Discovery Tool by refreshing the device
list, double clicking on the RX3i PNS module, and clicking the Identify Device button on the PNS properties
pop-up window.
Microprocessor Over Temperature
2.1.8.3
If the maximum threshold temperature for the PNS's microprocessor is crossed, the PNS goes into power-
saving mode. While the PNS is in an over-temperature condition, the following blink patterns are
alternated:
• PORT 1, PORT 2, and STATUS LEDs turn on RED for 0.5 seconds (all other LEDs off)
• Then PORT 3 and PORT 4 LEDs turn on RED for 0.5 seconds (all other LEDs off)
The PNS stays in power-saving mode until the temperature drops to a safer level. Once a safe
temperature is reached, the PNS module restarts.
Note: Under certain ambient operating temperatures, the PNS may momentarily display the over
temperature pattern during power-up while it is calibrating its thermal protection functions. This
indication can be ignored.
Firmware Update
2.1.8.4
While the PNS is in firmware update mode, the OK, LAN, and STATUS LEDs blink Green for 0.5 seconds and
then off for 0.5 seconds in unison. During firmware update operation, the ports are disabled, so all of the
PORT LEDs are off and the CONN LED is off. The USB LED operates normally displaying the condition of the
USB port.
Internal Update
2.1.8.5
Some changes from a firmware update are applied to the system on the next power up. During this
internal update process, the STATUS and LAN LEDs blink Green for 0.5 seconds and then off for 0.5
seconds in unison. At the completion of the internal update process, the PNS restarts and should power
up normally.
22 PACSystems* RX3i PROFINET IO-Scanner User Manual GFK-2737F