Pb/Pn Clock Cycle Synchronous Operation Clock Cycle Failure; Profibus: Interruption Cyclic Connection - Siemens SINAMICS DCM List Manual

4 Faults and alarms
4.2 List of faults and alarms
Reaction upon A: NONE
Acknowl. upon A: NONE
F01911 (N, A)

PB/PN clock cycle synchronous operation clock cycle failure

Message value: -
Message class: Communication error to the higher-level control system (9)
Drive object: DC_CTRL, DC_CTRL_R, DC_CTRL_R_S, DC_CTRL_S, TM150, TM15DI_DO, TM31
Reaction: OFF1 (OFF3)
Acknowledge: IMMEDIATELY
Cause: The global control telegram to synchronize the clock cycles has failed - in cyclic operation - for several DP clock
cycles or has violated the time grid specified in the parameterizing telegram over several consecutive DP clock
cycles (refer to the bus cycle time, Tdp and Tpllw).
Remedy: - check the physical bus configuration (cable, connector, terminating resistor, shielding, etc.).
- check whether communication was briefly or permanently interrupted.
- check the bus and controller for utilization level (e.g. bus cycle time Tdp was set too short).
PB: PROFIBUS
PN: PROFINET
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
F01915 (N, A) PB/PN clock cycle synchronous operation sign-of-life failure drive object 1
Message value: -
Message class: Communication error to the higher-level control system (9)
Drive object: All objects
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: Group display for problems with the sign-of-life of the master (clock-cycle synchronous operation) on the drive object
1 (Control Unit).
For central measurements, synchronism with the central master is lost.
Remedy: Note:
PB: PROFIBUS
PN: PROFINET
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
A01920 (F)

PROFIBUS: Interruption cyclic connection

Message value: -
Message class: Communication error to the higher-level control system (9)
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: The cyclic connection to the PROFIBUS master is interrupted.
Remedy: Establish the PROFIBUS connection and activate the PROFIBUS master in the cyclic mode.
Note:
If there is no communication to a higher-level control system, then p2030 should be set = 0 to suppress this
message.
See also: p2030 (Field bus int protocol selection)
Reaction upon F: NONE (OFF1)
Acknowl. upon F: IMMEDIATELY
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List Manual (LH8), 02/2015, 6RX1800-0ED76
SINAMICS DCM