Table 1 clarifies the various situations of the LEDs on the PLC.
Table 1 – Status of the LEDs on the PLC
| LED |
Colour |
Explanation |
| SF |
Red |
Blink when there is a malfunction.
Profibus address is set incorrectly and/or bush cable is connected
incorrectly.
|
| BF |
Red |
Blink when there is a malfunction.
Profibus address is set incorrectly and/or bush cable is connected
incorrectly. |
DC5V |
Green |
Illuminates when the PLC current is on. |
FRCE |
Orange |
-- |
Run |
Green |
Illuminates when PLC programme is loaded
and PLC is set at ‘RUN’. |
Stop |
Yellow |
Illuminates when the switch is at the ‘STOP’ position.
|
