BECKHOFF EL9xxx - Manual (Page 82)

Appendix
Description
If too many RxPDO Toggle error occur, i.e. the RxPDO Toggle Failed Counter increases the internal limit the
slave returns to SAFEPERROR with 0x001A. Multiple synchronization errors. Device is not synchronized any
more (used if the causes mirrored by the AL Status Codes 0x2C, 0x2D, 0x32, 0x33, 0x34 cannot be
distinguished).
Current State (or state change)
O, S→O
Resulting state
S + E
Solution
n/a
7.4.14 Error Code 0x001B
Meaning
Sync manager watchdog
Description
The slave did not receive process data within the specified watchdog time. Usually, the WD time is 100ms.
The WD is re­started every time it receives new process data, usually when the Output SyncManager
(SyncManager2) is written. For devices which have only inputs usually no WD is used. Increasing the WD is
not a solution.
Reason: PLC stopped
Current State (or state change)
O, S
Resulting state
S + E
Solution
n/a
7.4.15 Error Code 0x001C
Meaning
Invalid Sync Manager Types
Description
n/a
EL9xxx 82 Version 3.1