Siemens SIMATIC S7-1200

Technical specifications
A.2 Fail-Safe CPU technical specifications
S7-1200 Functional Safety Manual
156 Manual, 02/2015, A5E03470344-AA
Measurement ranges of the analog inputs for voltage of the CPU
Table A- 21 Analog input representation for voltage of the CPU
System
Voltage Measuring Range
Decimal
Hexadecimal
0 to 10 V
32767
7FFF
11.851 V
Overflow
32512
7F00
32511 7EFF 11.759 V Overshoot range
27649
6C01
27648
6C00
10 V
Rated range
20736
5100
7.5 V
34
22
12 mV
0
0
0 V
Negative values Negative values are not sup-
ported
A.2.2.6
CPU 1214FC wiring diagrams
Table A- 22 CPU 1214FC DC/DC/Relay (6ES7 214-1HF40-0XB0)
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 inputs, connect "+"
to "M".
Note: X11 connectors must be gold. See Ap-
pendix B, Spare Parts for article number.