Siemens SIMATIC S7 Functional Safety Manual

Technical specifications
A.2 Fail-Safe CPU technical specifications
S7-1200 Functional Safety Manual
152 Manual, 02/2015, A5E03470344-AA
Element
Description
Storage Structure in DB, size dependent upon count type
• SInt, USInt: 3 bytes
• Int, UInt: 6 bytes
• DInt, UDInt: 12 bytes
Table A- 13 Communication
Technical data
Description
Number of ports
1
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- 14 Power supply
Technical data
CPU 1214FC
DC/DC/Relay
CPU 1214FC
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
Table A- 15 Sensor power
Technical data
CPU 1214FC
DC/DC/Relay
CPU 1214FC
DC/DC/DC
Voltage range
L+ minus 4 VDC min.
Output current rating (max.)
400 mA (short-circuit protected)
Maximum ripple noise (<10 MHz)
Same as input line
Isolation (CPU logic to sensor power)
Not isolated

Siemens SIMATIC S7 Specifications

General

Brand	Siemens
Model	SIMATIC S7
Category	Controller
Language	English