SmartPLC SafeLine AC4S with fieldbus interfaces
206
>
SF_IN_ASi_forced
43133
Device type:
AS-i slave (input)
Library:
sf_logicalinterfaces.library
Symbol in CODESYS:
>
Description
43255
Logical device for the evaluation of a safe AS-i input slave with 2 positively-driven contacts/channels
SF_IN_ASi_forced detects switching states of the two signal channels of the AS-i slaves
(ASi_SlaveAdr, ASi_Master). The logical device forms the logical AND connector from the two values
and provides the result as safe control signal. The following additional conditions apply for the logical
signal evaluation:
Simultaneity of the signal change of the two contacts/channels is monitored during switch-on and
switch-off. If both signal channels do not take the same switching status during the fixed time, the
logical device changes to the locked error state. (InvalidTime = const. = 100ms)
The programmer can activate the following functions as option:
StartupTest:
Both signal channels must take the state FALSE simultaneously before the logical device can start
with the signal evaluation.
DisableLogging:
Only error events are transmitted to the online support centre (OSC) of the AC4S user interface.
To reset the logical device from the locked error state:
→
CtrlASi_InSlave
(
