Troubleshooting and Maintenance
6–3
Use the 7 LED indicators to isolate operating problems.
Figure 6.1
LED Indicators
On Symbol
Condition
Indication
Yellow
Bar code symbol is being scanned and decoded.
Flashing
Bar code symbol is being read at less than 100% rate.
Off
Not reading bar code symbol.
Trigger/Read
Condition
Indication
Yellow
Decoder trigger is active.
Green
Valid bar code symbol read.
Off
No trigger or valid bar code symbol read.
I/O 1 and I/O 2
Condition
Indication
Yellow
Corresponding input or output is in an On (closed contact) state.
Off
Corresponding input or output is in Off (open contact) state.
LED Indicators
