General information | | | |
Product type designation | | CPU 1211C DC/DC/DC | |
Firmware version | V4.2 | V4.2 | V4.2 |
Engineering with | | | |
| STEP 7 V14 or higher | STEP 7 V14 or higher | STEP 7 V14 or higher |
Supply voltage | | | |
Rated value (DC) | | | |
| | Yes | Yes |
permissible range, lower limit (DC) | | 20.4 V | 20.4 V |
permissible range, upper limit (DC) | | 28.8 V | 28.8 V |
Rated value (AC) | | | |
| Yes | | |
| Yes | | |
permissible range, lower limit (AC) | 85 V | | |
permissible range, upper limit (AC) | 264 V | | |
Reverse polarity protection | | Yes | Yes |
Line frequency | | | |
| 47 Hz | | |
| 63 Hz | | |
Load voltage L+ | | | |
| | 24 V | 24 V |
| | 20.4 V | 20.4 V |
| | 28.8 V | 28.8 V |
Input current | | | |
Current consumption (rated value) | 60 mA at 120 V AC; 30 mA at 240 V AC | 300 mA; CPU only | 300 mA; CPU only |
Current consumption, max. | 180 mA at 120 V AC; 90 mA at 240 V AC | 900 mA; CPU with all expansion modules | 900 mA; CPU with all expansion modules |
Inrush current, max. | 20 A; at 264 V | 12 A; at 28.8 V DC | 12 A; at 28.8 V DC |
I²t | 0.8 A²·s | 0.5 A²·s | 0.8 A²·s |
Output current | | | |
for backplane bus (5 V DC), max. | 750 mA; Max. 5 V DC for CM | 750 mA; Max. 5 V DC for CM | 750 mA; Max. 5 V DC for CM |
Encoder supply | | | |
24 V encoder supply | | | |
| 20.4 to 28.8V | L+ minus 4 V DC min. | L+ minus 4 V DC min. |
Power loss | | | |
Power loss, typ. | 10 W | 8 W | 8 W |
Memory | | | |
Work memory | | | |
| 50 kbyte | 50 kbyte | 50 kbyte |
| No | No | No |
Load memory | | | |
| 1 Mbyte | 1 Mbyte | 1 Mbyte |
| with SIMATIC memory card | with SIMATIC memory card | with SIMATIC memory card |
Backup | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
CPU processing times | | | |
for bit operations, typ. | 0.08 µs; / instruction | 0.08 µs; / instruction | 0.08 µs; / instruction |
for word operations, typ. | 1.7 µs; / instruction | 1.7 µs; / instruction | 1.7 µs; / instruction |
for floating point arithmetic, typ. | 2.3 µs; / instruction | 2.3 µs; / instruction | 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 | 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 | 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 | | | |
| Limited only by RAM for code | Limited only by RAM for code | Limited only by RAM for code |
Data areas and their retentivity | | | |
Retentive data area (incl. timers, counters, flags), max. | 10 kbyte | 10 kbyte | 10 kbyte |
Flag | | | |
| 4 kbyte; Size of bit memory address area | 4 kbyte; Size of bit memory address area | 4 kbyte; Size of bit memory address area |
Local data | | | |
| 16 kbyte; Priority class 1 (program cycle): 16 KB, priority class 2 to 26: 6 KB | 16 kbyte; Priority class 1 (program cycle): 16 KB, priority class 2 to 26: 6 KB | 16 kbyte; Priority class 1 (program cycle): 16 KB, priority class 2 to 26: 6 KB |
Process image | | | |
| 1 kbyte | 1 kbyte | 1 kbyte |
| 1 kbyte | 1 kbyte | 1 kbyte |
Hardware configuration | | | |
Number of modules per system, max. | 3 communication modules, 1 signal board | 3 communication modules, 1 signal board | 3 communication modules, 1 signal board |
Time of day | | | |
Clock | | | |
| Yes | Yes | Yes |
| 480 h; Typical | 480 h; Typical | 480 h; Typical |
| ±60 s/month at 25 °C | ±60 s/month at 25 °C | ±60 s/month at 25 °C |
Digital inputs | | | |
Number of digital inputs | 6; Integrated | 6; Integrated | 6; Integrated |
| 3; HSC (High Speed Counting) | 3; HSC (High Speed Counting) | 3; HSC (High Speed Counting) |
Source/sink input | Yes | Yes | Yes |
Number of simultaneously controllable inputs | | | |
all mounting positions | | | |
| 6 | 6 | 6 |
Input voltage | | | |
| 24 V | 24 V | 24 V |
| 5 V DC at 1 mA | 5 V DC at 1 mA | 5 V DC at 1 mA |
| 15 V DC at 2.5 mA | 15 V DC at 2.5 mA | 15 V DC at 2.5 mA |
Input current | | | |
| 4 mA; nominal | 4 mA; nominal | 4 mA; nominal |
Input delay (for rated value of input voltage) | | | |
for standard inputs | | | |
| 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 | 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 μs; 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms | 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 |
| 0.2 ms | 0.2 ms | 0.2 ms |
| 12.8 ms | 12.8 ms | 12.8 ms |
for interrupt inputs | | | |
| Yes | Yes | Yes |
for counter/technological functions | | | |
| Single phase : 3 @ 100 kHz, differential: 3 @ 80 kHz | Single phase : 3 @ 100 kHz, differential: 3 @ 80 kHz | Single phase : 3 @ 100 kHz, differential: 3 @ 80 kHz |
Cable length | | | |
| 500 m; 50 m for technological functions | 500 m; 50 m for technological functions | 500 m; 50 m for technological functions |
| 300 m; For technological functions: No | 300 m; For technological functions: No | 300 m; For technological functions: No |
Digital outputs | | | |
Number of digital outputs | 4; Relays | 4 | 4; Relays |
| | 4; 100 kHz Pulse Train Output | |
Limitation of inductive shutdown voltage to | | L+ (-48 V) | |
Switching capacity of the outputs | | | |
| 2 A | 0.5 A | 2 A |
| 30 W with DC, 200 W with AC | 5 W | 30 W with DC, 200 W with AC |
Output voltage | | | |
| | 0.1 V; with 10 kOhm load | |
| | 20 V | |
Output current | | | |
| | 0.5 A | |
| | 0.1 mA | |
Output delay with resistive load | | | |
| 10 ms; max. | 1 µs | 10 ms; max. |
| 10 ms; max. | 5 µs | 10 ms; max. |
Switching frequency | | | |
| | 100 kHz | |
Relay outputs | | | |
| mechanically 10 million, at rated load voltage 100 000 | | mechanically 10 million, at rated load voltage 100 000 |
Cable length | | | |
| 500 m | 500 m | 500 m |
| 150 m | 150 m | 150 m |
Analog inputs | | | |
Number of analog inputs | 2 | 2 | 2 |
Input ranges | | | |
| Yes | Yes | Yes |
Input ranges (rated values), voltages | | | |
| Yes | Yes | Yes |
| ≥100k ohms | ≥100k ohms | ≥100k ohms |
Cable length | | | |
| 100 m; twisted and shielded | 100 m; twisted and shielded | 100 m; twisted and shielded |
Analog outputs | | | |
Number of analog outputs | 0 | 0 | 0 |
Analog value generation for the inputs | | | |
Integration and conversion time/resolution per channel | | | |
| 10 bit | 10 bit | 10 bit |
| Yes | Yes | Yes |
| 625 µs | 625 µs | 625 µs |
Encoder | | | |
Connectable encoders | | | |
| Yes | Yes | Yes |
1. Interface | | | |
Interface type | PROFINET | PROFINET | PROFINET |
Physics | Ethernet | Ethernet | Ethernet |
Isolated | Yes | Yes | Yes |
automatic detection of transmission rate | Yes | Yes | Yes |
Autonegotiation | Yes | Yes | Yes |
Autocrossing | Yes | Yes | Yes |
Interface types | | | |
| 1 | 1 | 1 |
| No | No | No |
Functionality | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| No | No | No |
PROFINET IO Controller | | | |
| 100 Mbit/s | 100 Mbit/s | 100 Mbit/s |
Services | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| No | No | No |
| Yes | Yes | Yes |
| No | No | No |
| No | No | No |
| No | No | No |
| No | No | No |
| Yes | Yes | Yes |
| 16 | 16 | 16 |
| 16 | 16 | 16 |
| 16 | 16 | 16 |
| 16 | 16 | 16 |
| Yes | Yes | Yes |
| 8 | 8 | 8 |
| The minimum value of the update time also depends on the communication component set for PROFINET IO, on the number of IO devices and the quantity of configured user data. | The minimum value of the update time also depends on the communication component set for PROFINET IO, on the number of IO devices and the quantity of configured user data. | The minimum value of the update time also depends on the communication component set for PROFINET IO, on the number of IO devices and the quantity of configured user data. |
PROFINET IO Device | | | |
Services | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| No | No | No |
| Yes | Yes | Yes |
| No | No | No |
| No | No | No |
| No | No | No |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| 2 | 2 | 2 |
Protocols | | | |
Supports protocol for PROFINET IO | Yes | Yes | Yes |
PROFIBUS | Yes; CM 1243-5 required | Yes; CM 1243-5 required | Yes; CM 1243-5 required |
AS-Interface | Yes; CM 1243-2 required | Yes; CM 1243-2 required | Yes; CM 1243-2 required |
Protocols (Ethernet) | | | |
| Yes | Yes | Yes |
| No | No | No |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Open IE communication | | | |
| | | |
| 8 kbyte | 8 kbyte | 8 kbyte |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| 8 kbyte | 8 kbyte | 8 kbyte |
| | | |
| 1 472 byte | 1 472 byte | 1 472 byte |
Further protocols | | | |
| Yes | Yes | Yes |
Communication functions | | | |
S7 communication | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| See online help (S7 communication, user data size) | See online help (S7 communication, user data size) | See online help (S7 communication, user data size) |
Open IE communication | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Web server | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Number of connections | | | |
| 16; dynamically | 16; dynamically | 16; dynamically |
Test commissioning functions | | | |
Status/control | | | |
| Yes | Yes | Yes |
| Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters | Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters | Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters |
Forcing | | | |
| Yes | Yes | Yes |
Diagnostic buffer | | | |
| Yes | Yes | Yes |
Traces | | | |
| 2 | 2 | 2 |
| 512 kbyte | 512 kbyte | 512 kbyte |
Interrupts/diagnostics/status information | | | |
Diagnostics indication LED | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Integrated Functions | | | |
Number of counters | 3 | 6 | 3 |
Counting frequency (counter) max. | 100 kHz | 100 kHz | 100 kHz |
Frequency meter | Yes | Yes | Yes |
controlled positioning | Yes | Yes | Yes |
Number of position-controlled positioning axes, max. | 8 | 8 | 8 |
Number of positioning axes via pulse-direction interface | Up to 4 with SB 1222 | 4; With integrated outputs | Up to 4 with SB 1222 |
PID controller | Yes | Yes | Yes |
Number of alarm inputs | 4 | 4 | 4 |
Number of pulse outputs | | 4 | |
Limit frequency (pulse) | | 100 kHz | |
Potential separation | | | |
Potential separation digital inputs | | | |
| 500V AC for 1 minute | No | 500V AC for 1 minute |
| 1 | 1 | 1 |
Potential separation digital outputs | | | |
| Relays | Yes | Relays |
| No | No | No |
| 1 | 1 | 1 |
EMC | | | |
Interference immunity against discharge of static electricity | | | |
| Yes | Yes | Yes |
| 8 kV | 8 kV | 8 kV |
| 6 kV | 6 kV | 6 kV |
Interference immunity to cable-borne interference | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Interference immunity against voltage surge | | | |
| Yes | Yes | Yes |
Interference immunity against conducted variable disturbance induced by high-frequency fields | | | |
| Yes | Yes | Yes |
Emission of radio interference acc. to EN 55 011 | | | |
| Yes; Group 1 | Yes; Group 1 | Yes; Group 1 |
| Yes; When appropriate measures are used to ensure compliance with the limits for Class B according to EN 55011 | Yes; When appropriate measures are used to ensure compliance with the limits for Class B according to EN 55011 | Yes; When appropriate measures are used to ensure compliance with the limits for Class B according to EN 55011 |
Degree and class of protection | | | |
Degree of protection acc. to EN 60529 | | | |
| Yes | Yes | Yes |
Standards, approvals, certificates | | | |
CE mark | Yes | Yes | Yes |
UL approval | Yes | Yes | Yes |
cULus | Yes | Yes | Yes |
FM approval | Yes | Yes | Yes |
RCM (formerly C-TICK) | Yes | Yes | Yes |
KC approval | Yes | Yes | Yes |
Marine approval | Yes | Yes | Yes |
Ambient conditions | | | |
Free fall | | | |
| 0.3 m; five times, in product package | 0.3 m; five times, in product package | 0.3 m; five times, in product package |
Ambient temperature during operation | | | |
| -20 °C | -20 °C | -20 °C |
| 60 °C | 60 °C | 60 °C |
| -20 °C | -20 °C | -20 °C |
| 60 °C | 60 °C | 60 °C |
| -20 °C | -20 °C | -20 °C |
| 50 °C | 50 °C | 50 °C |
Ambient temperature during storage/transportation | | | |
| -40 °C | -40 °C | -40 °C |
| 70 °C | 70 °C | 70 °C |
Air pressure acc. to IEC 60068-2-13 | | | |
| 795 hPa | 795 hPa | 795 hPa |
| 1 080 hPa | 1 080 hPa | 1 080 hPa |
| 660 hPa | 660 hPa | 660 hPa |
| 1 080 hPa | 1 080 hPa | 1 080 hPa |
| -1000 to 2000 m | -1000 to 2000 m | -1000 to 2000 m |
Relative humidity | | | |
| 95 %; no condensation | 95 %; no condensation | 95 %; no condensation |
Vibrations | | | |
| 2 g (m/s²) wall mounting, 1 g (m/s²) DIN rail | 2 g (m/s²) wall mounting, 1 g (m/s²) DIN rail | 2 g (m/s²) wall mounting, 1 g (m/s²) DIN rail |
| Yes | Yes | Yes |
Shock test | | | |
| Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms | Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms | Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms |
Pollutant concentrations | | | |
| S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free | S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free | S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free |
Programming | | | |
Programming language | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Know-how protection | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Access protection | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Cycle time monitoring | | | |
| Yes | Yes | Yes |
Dimensions | | | |
Width | 90 mm | 90 mm | 90 mm |
Height | 100 mm | 100 mm | 100 mm |
Depth | 75 mm | 75 mm | 75 mm |
Weights | | | |
Weight, approx. | 420 g | 370 g | 380 g |