Siemens SIMATIC S7 Functional Safety Manual page 162

Technical specifications
A.2 Fail-Safe CPU technical specifications
Element
Timers Type
Quantity
Storage
Counters Type
Quantity
Storage
Table A- 30 Communication
Technical data
Number of ports
Type
HMI device
Programming device (PG)
Connections
Data rates
Isolation (external signal to PLC logic)
Cable type
Table A- 31 Power supply
Technical data
Voltage range
Line frequency
Input current (max. CPU only
load)
CPU with all expansion accessories 1500 mA at 24 VDC
Inrush current (max.)
Isolation (input power to logic)
Ground leakage, AC line to functional earth
Hold up time (loss of power)
Internal fuse, not user replaceable
162
Description
IEC
Limited only by memory size
Structure in DB, 16 bytes per timer
IEC
Limited only by memory size
Structure in DB, size dependent upon count type
SInt, USInt: 3 bytes
•
Int, UInt: 6 bytes
•
DInt, UDInt: 12 bytes
•
Description
2
Ethernet
4
1
8 for Open User Communication (active or passive): TSEND_C,
•
TRCV_C, TCON, TDISCON, TSEND, and TRCV
3 for server GET/PUT (CPU-to-CPU) S7 communication
•
8 for client GET/PUT (CPU-to-CPU) S7 communication
•
10/100 Mb/s
Transformer isolated, 1500 VAC, for short term event safety only
CAT5e shielded
CPU 1215FC
DC/DC/Relay
20.4 VDC to 28.8 VDC
--
500 mA at 24 VDC
12 A at 28.8 VDC
Not isolated
-
10 ms at 24 VDC
3 A, 250 V, slow blow
CPU 1215FC
DC/DC/DC
S7-1200 Functional Safety Manual
Manual, 02/2015, A5E03470344-AA