Reaction To Profibus Error; K-Bus Diagnosis; K-Bus Interruption - Beckhoff BK3 0 Series Documentation

Error code 10*
Error during the register communication. The settings to be written via the UserPrm data were executed
incorrectly.
Error argument Description
x Problems with terminal x
Error code 11*
Error during the register communication. The settings to be written via the UserPrm data were aborted with a
timeout.
Error argument Description
x Problems with terminal x
* Only for BK3120 or BK3150 with the GSD file and slot-oriented mapping (E312BECE.GS? or
E315BECE.GS?)
6.2.3

Reaction to PROFIBUS Error

A PROFIBUS error (failure of the master, withdrawal of the PROFIBUS plug etc.) is detected after the DP
watchdog has elapsed (usually in the region of 100 ms, unless this has been deactivated in the master) or by
bus timeout (the baud rate supervision time is set to 10 s).
The reaction at the output data of the coupler can be set in the UserPrmData [} 35]:
Byte Bit Value Description
10 0-1 00 Reaction to PROFIBUS error: K-bus cycle is abandoned (default, digital outputs
bin
become 0, complex outputs are set to a planned substitute value)
01 Reaction to PROFIBUS error: K-bus outputs become 0
bin
10 Reaction to PROFIBUS error: K-bus outputs remain unchanged
bin
6.3

K-bus diagnosis

6.3.1

K-bus interruption

If the K-bus is interrupted, or suffers from a relatively long malfunction, the coupler enters the K-bus error
state. Depending on the setting made for Reaction to K-Bus error in the UserPrmData [} 35], the coupler
abandons DP data exchange and sets the Stat_Diag bit in the diagnostic data [} 64] at the next DP start-up
(with the consequence that DP data exchange is not carried out), sets the DP inputs to 0, or leaves the DP
inputs unchanged.
Byte Bit Value Description
10 2-3 00 Reaction to K-bus error: DP data exchange is abandoned (default)
bin
01 Reaction to K-bus error: DP inputs set to 0
bin
10 Reaction to K-bus error: DP inputs remain unchanged
bin
When the interruption or malfunction on the K-bus has been rectified, the setting of Response to K-bus error
in the UserPrmData [} 35] determines whether the K-bus error state is left manually (by means of a K-bus
reset), or automatically:
Byte Bit Value Description
7 0 0 Response to K-bus error: manual K-bus reset (default)
bin
1 Response to K-bus error: automatic K-bus reset
bin
BK3xx0 Version: 4.3.0
Diagnostics and error handling
69