Siemens SIMATIC S7 Functional Safety Manual page 169

Table A- 43 CPU 1215FC DC/DC/DC (6ES7 215-1AF40-0XB0)
S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA
Pin
15 DI b.0
16 DI b.1
17 DI b.2
18 DI b.3
19 DI b.4
20 DI b.5
A.2 Fail-Safe CPU technical specifications
X10 X11 (gold)
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Technical specifications
X12
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①
The two rectangular areas are
yellow. These are only on the
fail-safe CPUs.
②
24 VDC Sensor Power Out
For additional noise immunity,
connect "M" to chassis ground
even if not using sensor supply.
③
For sinking inputs, connect "-" to
"M" (shown). For sourcing in-
puts, connect "+" to "M".
Note: X11 connectors must be gold.
See Appendix B, Spare Parts for
article number.
169