I/O Terminal /
ERROR HANDLING AND DIAGNOSIS
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8.2.2 Errors During DP Start-up
If an error occurs in the parameterization (UserPrmData) or configuration (CfgData) during
DP start-up, this is indicated both through the fieldbus LEDs and in the diagnostic data
(DiagData).
Possible DP start-up errors are identified by an error code and an error argument.
Errors when checking the UserPrmData
Error code 1
Error code 1 indicates that a reserved bit in the UserPrmData has been set to an incorrect
value, or that the function corresponding to the bit in the UserPrmData is not supported. The
error argument describes which UserPrmData byte has been detected as containing an error
(the offset of the faulty byte + 1).
Error code 3
Error code 3 indicates that a combination of functions selected in the UserPrmData is not
allowed. The error argument describes the impermissible combination.
Error Code Argument
Description
1
The Reaction to DP error cannot be set to "Outputs
unchanged" in synchronous mode
2
The DPV1-MSAC_C1 connection has been activated by the
master, but no DPV1-MSAC_C1 connection is defined
6
The Multi-configuration mode is not allowed if Checking the
CfgData is switched off
8
Synchronous mode may only be activated when at least one
DP output byte is configured
10
The optimized input cycle is only possible in synchronous
mode
11
The length of the DP buffer exceeds the size of the DP RAM in
the PROFIBUS ASIC
12
Fast-FreeRun mode may not be activated together with
synchronous mode