ABB AC500-S Safety User Manual page 111
Safety programmable logic controllers system
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Also See for AC500-S:
- Safety user manual (404 pages) ,
- Application note (24 pages) ,
- System manual (119 pages)
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Fig. 38: 2 channel antivalent mode implemented in DX581-S
NOTICE!
2 channel equivalent and 2 channel antivalent modes are implemented in DI581-S and DX581-S
module to handle relatively static safety signals, e.g., those for emergency stop devices.
If frequently changing signals, like those from light curtains, laser scanners, door switches, etc. must
be handled by DI581-S and DX581-S, then it is highly recommended to configure related channels in
1 channel mode and do 2 channel equivalent and 2 channel antivalent evaluation at SM560-S Safety
CPU using PLCopen Safety FBs SF_Equivalent and SF_Antivalent (
lent" on page 269 and
DX581-S contains 8 safety digital output channels with the following features:
n
Internal output channel tests can be switched off.
30.03.2017
Ä Chapter 4.6.6.3 "SF_Antivalent" on page 274).
DX581-S digital safety input/output module > Functionality
Ä Chapter 4.6.6.2 "SF_Equiva-
AC500-S
AC500-S Safety Modules
111
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