
EMBEDDED
PLC BL2500 User’s Manual
Hardware Reference
OEM Technology Solutions
Page 40
4.6 LED INDICATORS
The
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PLC Kernel running on the BL2500 uses three LEDs to indicate status:
•
DS1 (yellow)
. When this LED is flashing every second, it indicates that the Target PLC is licensed
and active.
•
DS2 (red)
. This LED is turned ON after reset the Target PLC. If the Target PLC is not licensed the
LED will remain ON indefinitely. If the Target PLC is licensed the LED will be turned OFF after 8
seconds. Also, this LED is turned ON during configuration of the Target PLC.
DS3 and DS4 (yellow) LEDs are used via ISaGRAF Workbench I/O boards.