Technical specifications
A.2 Fail-Safe CPU technical specifications
S7-1200 Functional Safety Manual
160 Manual, 02/2015, A5E03470344-AA
General specifications and features
Table A- 26 General
Dimensions W x H x D (mm) 130 x 100 x 75
Power dissipation 12 W
Current available (SM and CM bus)
Current available (24 VDC)
400 mA max. (sensor power)
Digital input current consumption (24 VDC)
Table A- 27 CPU features
User memory
(Refer to "General
technical specifica-
tions (Page 132),
"Internal CPU
memory reten-
4 Mbytes, internal, expandable up to SD card size
Retentive 10 Kbytes
1024 bytes of inputs (I)/1024 bytes of outputs (Q)
Temporary (local) memory
• 16 Kbytes for startup and program cycle (including associated FBs and FCs)
• 6 Kbytes for each of the other interrupt priority levels (including FBs and FCs)
Communication module expansion
High-speed counters Up to 6 configured to use any built-in or SB inputs. (Refer to the
S7-
Manual
for more information.)
• 100/
1
80 kHz (Ia.0 to Ia.5)
• 30/
1
20 kHz (Ia.6 to Ib.5)
Pulse outputs
2
Up to 4 configured to use any built-in or SB outputs
• 100 kHz (Qa.0 to Qa.3)
• 30 kHz (Qa.4 to Qb.1)
Pulse catch inputs 14