Diagnostic LEDs for PROFIBUS
These are described by the upper two LEDs.
|
LED green |
LED red |
I/O RUN |
Description |
Remedy |
|---|---|---|---|---|
|
on |
on |
No significance |
Module waiting for communication |
A baud rate has been found, start communication, incorrect identification number |
|
off |
on |
No significance |
Module is in Baud rate search mode |
Start PROFIBUS, connect/check bus cable |
|
off |
off |
No significance |
Module waiting for cyclic communication |
Start the cyclic PROFIBUS communication (start task) |
|
on |
flashing |
No significance |
Baud rate found, start up error |
Parameter or configuration error, see blink code |
|
on |
off |
off |
DP start up OK, but still no Data_Exchange telegram received |
Start the cyclic PROFIBUS communication (start task) |
|
on |
off |
on |
Module in data exchange |
no error |
Parameter data error
Error code 1
The reserved, fixed UserPrm data has an incorrect value. The error code argument indicates an incorrect byte (byte 0 starts with error code argument 1).
Error code 3
The combination of certain functions, using UserPrmData, is not allowed. The error code argument gives more precise information
|
Error code argument |
Description |
|---|---|
|
1 |
In synchronous mode it is not allowed to set the reaction to Profibus errors to "Outputs unchanged". The watchdog of the subsidiary bus system triggers more quickly than the PROFIBUS watchdog. |
|
2-7 |
Reserved |
|
8 |
Synchronous mode is not allowed when there are no outputs. |
|
9-11 |
Reserved |
|
12 |
The fast free-run mode is not allowed when synchronous mode is switched on |
Error code 9
Error code 9 describes start-up errors
|
Error code argument |
Description |
|---|---|
|
1 |
Length of the DP input data too great |
|
2 |
Length of the DP output data too great |
|
3 |
Length of the DP CfgData too great |
|
4 |
IP Box type not recognized |
|
5 |
Configuration data of DP-interface are not OK |
Configuration data (CfgData) error
Error code 2
Error when comparing the configuration data. The error code argument indicates the first incorrect byte (beginning with "1")
Error code 5
Error in the length of the digital output data. The error code argument indicates the expected number of bytes.
Error code 6
Error in the length of the digital input data. The error code argument indicates the expected number of bytes.
Error code 7
Error code 7 describes CfgData errors
|
Error code argument |
Description |
|---|---|
|
1 |
Length of the CfgData is not correct |
|
2 |
Syntax of the CfgData is not correct |
|
3 |
Length of the configuration data's calculated input data is too great |
|
4 |
Length of the configuration data's calculated output data is too great |