Status LEDs
The industrial PC has either three or seven status LEDs, depending on the device generation. The following table shows how many LEDs exist in each generation:
Generation | Number of status LEDs |
|---|---|
C6925-0020 | PWR, FB, HDD |
C6925-0030 | PWR, FB, HDD |
C6925-0040 | PWR, TC, IDE, FAN, USR, FB RUN, FB ERR |
The LEDs provide information on the following aspects:
- the status of the power controller (PWR)
- the TwinCAT status (TC)
- the hard disk activity (IDE/HDD)
- the fan status (FAN)
- the user (USR)
- the fieldbus activity (FB RUN)
- the fieldbus status (FB, FB ERR)
The figure shows where the LEDs are located on the industrial PC.
LED | Color/flashing interval | Meaning |
|---|---|---|
PWR (Power) | green off | Computer on Computer off |
FB (fieldbus) | red blue blue/red flashing green green/red flashing | TwinCAT Stop TwinCAT Config TwinCAT Config (fieldbus error) TwinCAT Run TwinCAT Run (fieldbus error) |
HDD (hard disk) | red | Accessing storage media |
LED | Color/flashing interval | Meaning |
|---|---|---|
PWR (Power) | green green flashing | Operation Standby |
TC (TwinCAT) | red green blue | Stop Mode Run Mode Configuration mode |
IDE/HDD | red | Access to storage medium |
FAN | green red | Fans running Fans failed |
USR (user) |
| programmable |
FB RUN (fieldbus active) | green red | active not active |
FB Error (fieldbus error) | red | Error |