Siemens SIMATIC S7-1200 - Page 162

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