Diagnostic LEDs for PROFINET
After switching on, the module immediately checks the connected configuration. Error-free start-up is signalled by the red LED I/O ERR being extinguished. Flashing of LED I/O ERR indicates an input/output error. The error code can be determined from the frequency and number of blinks. This permits rapid rectification of the error.
The module has two groups of LEDs for the display of status. The upper group with four LEDs indicates the status of the respective fieldbus. The meaning of the fieldbus status LEDs is explained in the respective sections of this manual. It corresponds to the usual fieldbus display.
At the bottom of the module there are two further green LEDs that indicate the supply voltage. The LED on the left indicates the 24 VDC logic supply of the module. The LED on the right indicates the supply of the outputs.
LEDs for Ethernet diagnostics
|
LED |
On |
Off |
|---|---|---|
|
SPEED |
Port setting 100Mbit/s |
Port setting 10Mbit/s |
|
ACT |
On: Physical connection present |
No connection |
LEDs for PROFINET diagnostics
|
DIAG R (green) |
DIAG E (red) |
Configuration/diagnostics |
|---|---|---|
|
on |
off |
OK |
|
0.5s |
off |
Flashing (triggered by a Profinet tool) |
|
0.1s |
off |
Offline PLC Stop |
|
off |
0.5s |
TimeOut |
|
1 |
Slot number |
Wrong module |
|
2 |
Slot number |
Missing module (physical) |
|
3 |
Slot number |
Missing module (in the configuration) |
|
4 |
off |
No Profinet name allocated |
|
5 |
Slot number |
Substitute |
Note:
- In the event of several errors the last faulty module is displayed.
- Substitute - is set if modules are configured incorrectly but are nevertheless capable of running (Example: IE3112 is configured but IE3102 is inserted in slot)
Example
You have configured an IE3112 as a fifth module, but only four modules are actually connected.
- Start Error Code: Red DIAG E LED flickers rapidly, green DIAG R LED is off
- Red DIAG E LED is on, green LED shows the error code and flashes twice (0.5 sec)
- Red and green LED off
- Red DIAG E LED shows the error argument and flashes 5 times (0.5 sec, slot number here), green LED is off
LEDs for power supply diagnosis
|
LED |
Meaning |
|---|---|
|
Left LED off |
Module has no voltage |
|
Left LED red |
Short-circuit monitoring of the sensor supply (< 500mA) is activated. Sensors/inputs are no longer supplied. |
|
Right LED off |
No 24 VDC voltage supply for outputs connected |