Siemens SIMATIC S7-1200 - Page 1383

Technical specifications
A.5 CPU 1212C
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
1383
Technical data
Description
Communication module expansion
3 CMs max.
High-speed counters Up to 6 configured to use any built-in or SB inputs. Refer to "Hardware input pin
assignment" (Page 580) for CPU 1212C: HSC default address assignments.
• 100/
1
80 kHz (Ia.0 to Ia.5)
• 30 /
1
20 kHz (Ia.6 to Ia.7)
Pulse outputs
2
Up to 4 configured to use any built-in or SB outputs
• 100 kHz (Qa.0 to Qa.3)
• 20 kHz (Qa.4 to Qa.5)
Pulse catch inputs 8
Time delay interrupts
4 total with 1 ms resolution
Cyclic interrupts
4 total with 1 ms resolution
Edge interrupts
8 rising and 8 falling (12 and 12 with optional signal board)
Memory card
SIMATIC memory card (optional)
Real time clock accuracy
+/- 60 seconds/month
Real time clock retention time
20 days typ./12 days min. at 40 °C (maintenance-free Super Capacitor)
1
The slower speed is applicable when the HSC is configured for quadrature mode of operation.
2
For CPU models with relay outputs, you must install a digital signal board (SB) to use the pulse outputs.
Table A- 30 Performance
Type of instruction
Execution speed
Direct addressing (I, Q and M)
DB accesses
Boolean
0.08 μs/instruction
Move
Move_Bool
0.3 μs/instruction
1.17 μs/instruction
Move_Word
0.137 μs/instruction
1.0 μs/instruction
Move_Real
0.72 μs/instruction
1.0 μs/instruction
Real Math
Add Real
1.48 μs/instruction
1.78 μs/instruction
Note
Many var
iables affect measured times. The above performance times are for the fastest
instructions in this category and error
-free programs.