Chapter
5 - DIAGNOSTICS
5.1 Diagnostics Chart
LED Indicator
Condition
Meaning
OK
Green
Normal operation
OK
Red solid
Factory default mode, locale not set, supply voltage low, or internal
module fault
OK
Red at power on
Boot loader delay at startup
OK
Fast flash red/green
Module boot sequence
OK
Slow flash red / green
Module boot sequence
Radio RX
Green flash
Radio is receiving a valid WEIDMULLER WI-MOD-xxx-E-5W data frame
Radio RX
Red flash
Radio is receiving a data frame with a low signal level. Threshold is
–100 dBm for 2-level FSK and –90 dBm for 4-level FSK.
TX/LINK
Green
Connection established to remote device
TX/LINK
Red flash
Radio transmitting
RS-232
Green flash
Data sent from RS-232 serial port
RS-232
Red flash
Data received to RS-232 serial port
LAN
On
Link established on Ethernet port
LAN
Flash
Activity on Ethernet port
RS-485
Green flash
Data sent from RS-485 serial port
RS-485
Red flash
Data received to RS-485 serial port
I/O
Green
Digital input is turned on (shorted to GND)
I/O
Red
Digital output is active
I/O
Off
Digital output is off and input is open circuit
I/O
Green varying intensity
Analog input current in circuit (dim = 4 mA, bright = 20 mA)
The green OK LED on the front panel indicates that the WI-MOD-xxx-E-5W is operating correctly. A red OK LED
can indicate a number of conditions. When the module is reset to its factory default settings and requires the
locale to be configured, the LED will remain red until the module has been configured and reset. The OK LED also
turns red when the module has a processor fault or the supply voltage is low. It may also indicate a shutdown
state. For example, if there is a processor failure or failure during start-up diagnostics, the unit shuts down and
remains in shutdown until the fault is rectified. During Module, boot-up the OK LED flashes red-green until the boot
sequence is complete.
Boot Status LED Indication During Startup
The OK LED indicates the status of the module during the bootup process. At power on, the OK LED comes on red.
During kernel boot the OK LED flashes red-green at a 1-Hz rate (½ second red, ½ second green). During module
initialization, the OK LED flashes red-green at 0.5-Hz rate (1-second red, 1-second green). When initialization is
complete, the OK LED becomes steady green.
If the OK LED remains red at power on, it could indicate either low supply voltage, module fault, or that the module
is in factory default mode. The module will not attempt to boot until supply voltage is within range.
