| SIMATIC S7-1200, CPU 1214C, compact CPU, DC/DC/DC, onboard I/O: 14 DI 24 V DC; 10 DO 24 V DC; 2 AI 0-10 V DC, Power supply: DC 20.4-28.8V DC, Program/data memory 100 KB |
General information |
Product type designation | CPU 1214C DC/DC/DC |
Firmware version | V4.2 |
Engineering with |
● Programming package | STEP 7 V14 or higher |
Supply voltage |
Rated value (DC) | |
● 24 V DC | Yes |
permissible range, lower limit (DC) | 20.4 V |
permissible range, upper limit (DC) | 28.8 V |
Reverse polarity protection | Yes |
Load voltage L+ |
● Rated value (DC) | 24 V |
● permissible range, lower limit (DC) | 20.4 V |
● permissible range, upper limit (DC) | 28.8 V |
Input current |
Current consumption (rated value) | 500 mA; CPU only |
Current consumption, max. | 1 500 mA; CPU with all expansion modules |
Inrush current, max. | 12 A; at 28.8 V |
I²t | 0.5 A²·s |
Output current |
for backplane bus (5 V DC), max. | 1 600 mA; Max. 5 V DC for SM and CM |
Encoder supply |
24 V encoder supply |
● 24 V | L+ minus 4 V DC min. |
Power loss |
Power loss, typ. | 12 W |
Memory |
Work memory |
● integrated | 100 kbyte |
● expandable | No |
Load memory |
● integrated | 4 Mbyte |
● Plug-in (SIMATIC Memory Card), max. | with SIMATIC memory card |
Backup |
● present | Yes |
● maintenance-free | Yes |
● without battery | Yes |
CPU processing times |
for bit operations, typ. | 0.08 µs; / instruction |
for word operations, typ. | 1.7 µs; / instruction |
for floating point arithmetic, typ. | 2.3 µs; / instruction |
CPU-blocks |
Number of blocks (total) | DBs, FCs, FBs, counters and timers. The maximum number of addressable blocks ranges from 1 to 65535. There is no restriction, the entire working memory can be used |
OB |
● Number, max. | Limited only by RAM for code |
Data areas and their retentivity |
Retentive data area (incl. timers, counters, flags), max. | 10 kbyte |
Flag |
● Number, max. | 8 kbyte; Size of bit memory address area |
Local data |
● per priority class, max. | 16 kbyte; Priority class 1 (program cycle): 16 KB, priority class 2 to 26: 6 KB |
Address area |
Process image |
● Inputs, adjustable | 1 kbyte |
● Outputs, adjustable | 1 kbyte |
Hardware configuration |
Number of modules per system, max. | 3 comm. modules, 1 signal board, 8 signal modules |
Time of day |
Clock |
● Hardware clock (real-time) | Yes |
● Backup time | 480 h; Typical |
● Deviation per day, max. | ±60 s/month at 25 °C |
Digital inputs |
Number of digital inputs | 14; Integrated |
● of which inputs usable for technological functions | 6; HSC (High Speed Counting) |
Source/sink input | Yes |
Number of simultaneously controllable inputs |
all mounting positions |
— up to 40 °C, max. | 14 |
Input voltage |
● Rated value (DC) | 24 V |
● for signal “0” | 5 V DC at 1 mA |
● for signal “1” | 15 V DC at 2.5 mA |
Input delay (for rated value of input voltage) |
for standard inputs |
— parameterizable | 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four |
— at “0” to “1”, min. | 0.2 ms |
— at “0” to “1”, max. | 12.8 ms |
for interrupt inputs |
— parameterizable | Yes |
for technological functions |
— parameterizable | Single phase: 3 @ 100 kHz & 3 @ 30 kHz, differential: 3 @ 80 kHz & 3 @ 30 kHz |
Cable length |
● shielded, max. | 500 m; 50 m for technological functions |
● unshielded, max. | 300 m; for technological functions: No |
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