![Siemens SIDOOR AT40 System Manual Download Page 209](http://html.mh-extra.com/html/siemens/sidoor-at40/sidoor-at40_system-manual_377380209.webp)
Controllers
6.11 Structure of user data/process data
AT40, ATD400V, ATD400K, ATD4xxW, ATD400S, ATE250S, ATD400T
System Manual, 06/2016, A2B00096162-AN
209
6
Switch-on inhibit
1
Switching on inhibited, restart is only possible by means of OFF1 and then ON
0
No switching on inhibited, switching on is possible
9
Control requested by
PLC
1
Control requested, the automation system (PLC) is requested to take over control
0
Control is only possible on the device, the PLC is not the current controller
Note
The operation is also conditional on the operating mode of the door control system.
Initial mode is active in the event of a non-learnt or incorrectly learnt door. Normal mode is
not attained until both end positions have been determined after power on, and these end
positions match those that have been learnt.
6.11.2.6
TZW0 - Technology status word 0
Technology status word 0 is not assigned for compatibility reasons. It serves as a
placeholder.