Siemens SIMOTION D4x5-2 DP/PN Operating Instructions Manual page 175

Figure 6-15
If more than five obstacles have to be transferred, the transfer must be performed sequentially,
i.e. over several cycles.
A special control bit and status bit are provided for this purpose.
● The obstacles are accepted on the rising edge of the PRG_OBST control bit.
● The status bit PRG_OBST_OK is set as an acknowledgment, and transfer of the next block
can begin.
● The current total number of obstacles in the sway control system is displayed in the output
value "Number_OBST" (number of obstacles).
● If zero values have been assigned to obstacles or if these obstacles already exist, they are
not transferred. Fewer than five obstacles will be transferred in these cases.
● When the maximum number of 250 obstacles is reached, no new obstacles are transferred.
The current list of transferred obstacles can be displayed in the diagnostic program on the
screen page "Variable blocked regions" (with "G" key) (Chapter Monitor (tab) (Page 271)).
SC integrated STS, GSU
Operating Instructions, 07/2019, A5E48271265B AA
Sequential transfer of external variable obstacles
Sway Control function description
6.10 Blocked regions
175