Technical data

Safety Integrated Functions
8.6 Controlling the safety functions
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
421
8.6.4 Overview of the F-DOs
Description
The failsafe digital output (F-DO) consists of two digital outputs. At the first digital output
DO16+ the 24 V potential connected to the terminal 24V1 is switched, and at the second
terminal the ground potential connected to terminal M1 is switched (see diagram below
"Overview F-DO").
To enable forced dormant error detection, the F-DO must be dynamized with the
parameterized function (p10047) (for additional information on forced dormant error
detection, see the corresponding function description in the "Extended Functions" section).
DO16+
DO16-
X131.5
X131.6
M1
X131.8
F-DO 0
+24 V1
r10152.0
M
M1
r0747.16
M
24 V1
X131.7
M1
24 V1
(2857.8)
9
0
r10052.0
([WHUQ
Figure 8-19 F-DO Overview
Signal sources of the F-DO
The following signals are available for outputs for the F-DO. Setting using parameter
p10042/p10142:
● STO active
● SS1 active
● SS2 active
● SOS active
● SLS active
● SSM feedback active
● Safestate
● SOS selected
● Internal event
● Active SLS level bit 0
● Active SLS level bit 1
● SDI positive active
● SDI negative active