BECKHOFF EtherCAT Registers Section II - Manual (Page 72)

SyncManager (0x0800:0x087F)
II-60 Slave Controller – Register Description
Table 94: Register PDI Control SyncManager y (0x0807+y*8)
ESC20 ET1100 ET1200 IP Core
Bit Description ECAT PDI Reset Value
0 Deactivate SyncManager:
Read:
0:
Normal operation, SyncManager
activated.
1: SyncManager deactivated and reset
SyncManager locks access to Memory
area.
Write:
0:
Activate SyncManager
1: Request SyncManager deactivation
NOTE: Writing 1 is delayed until the end of a
frame which is currently processed.
r/- r/w 0
1 Repeat Ack:
If this is set to the same value as set by
Repeat Request, the PDI acknowledges the
execution of a previous set Repeat request. r/- r/w 0
7:2 Reserved, write 0 r/- r/- 0