| General information |
| Product type designation |
CPU 1211C DC/DC/relay |
| 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) |
300 mA; CPU only |
| Current consumption, max. |
900 mA; CPU with all expansion modules |
| Inrush current, max. |
12 A; at 28.8 V DC |
| I²t |
0.8 A²·s |
| Output current |
| for backplane bus (5 V DC), max. |
750 mA; Max. 5 V DC for CM |
| Encoder supply |
| 24 V encoder supply |
| ● 24 V |
L+ minus 4 V DC min. |
| Power loss |
| Power loss, typ. |
8 W |
| Memory |
| Work memory |
| ● integrated |
50 kbyte |
| ● expandable |
No |
| Load memory |
| ● integrated |
1 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. |
4 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 communication modules, 1 signal board |
| 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 |
6; Integrated |
| ● of which inputs usable for technological functions |
3; HSC (High Speed Counting) |
| Source/sink input |
Yes |
| Number of simultaneously controllable inputs |
| all mounting positions |
| — up to 40 °C, max. |
6 |
| 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 current |
| ● for signal "1", typ. |
4 mA; nominal |
| 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, differential: 3 @ 80 kHz |
| Cable length |
| ● shielded, max. |
500 m; 50 m for technological functions |
| ● unshielded, max. |
300 m; For technological functions: No |
| Digital outputs |
| Number of digital outputs |
4; Relays |
| Switching capacity of the outputs |
| ● with resistive load, max. |
2 A |
| ● on lamp load, max. |
30 W with DC, 200 W with AC |
| Output delay with resistive load |
| ● "0" to "1", max. |
10 ms; max. |
| ● "1" to "0", max. |
10 ms; max. |
| Relay outputs |
| ● Number of relay outputs |
4 |
| ● Number of operating cycles, max. |
mechanically 10 million, at rated load voltage 100 000 |
| Cable length |
| ● shielded, max. |
500 m |
| ● unshielded, max. |
150 m |
| Analog inputs |
| Number of analog inputs |
2 |
| Input ranges |
| ● Voltage |
Yes |
| Input ranges (rated values), voltages |
| ● 0 to +10 V |
Yes |
| ● Input resistance (0 to 10 V) |
≥100k ohms |
| Cable length |
| ● shielded, max. |
100 m; twisted and shielded |
| Analog outputs |
| Number of analog outputs |
0 |
| Analog value generation for the inputs |
| Integration and conversion time/resolution per channel |
| ● Resolution with overrange (bit including sign), max. |
10 bit |
| ● Integration time, parameterizable |
Yes |
| ● Conversion time (per channel) |
625 µs |
| Encoder |
| Connectable encoders |
| ● 2-wire sensor |
Yes |
| 1. Interface |
| Interface type |
PROFINET |
| Physics |
Ethernet |
| Isolated |
Yes |
| automatic detection of transmission rate |
Yes |
| Autonegotiation |
Yes |
| Autocrossing |
Yes |
| Interface types |
| ● Number of ports |
1 |
| ● integrated switch |
No |
| Protocols |
| ● PROFINET IO Controller |
Yes |
| ● PROFINET IO Device |
Yes |
| ● SIMATIC communication |
Yes |
| ● Open IE communication |
Yes |
| ● Web server |
Yes |
| ● Media redundancy |
No |
| PROFINET IO Controller |
| ● Transmission rate, max. |
100 Mbit/s |
| Services |
| — PG/OP communication |
Yes |
| — S7 routing |
Yes |
| — Isochronous mode |
No |
| — Open IE communication |
Yes |
| — IRT |
No |
| — MRP |
No |
| — MRPD |
No |
| — PROFIenergy |
No |
| — Prioritized startup |
Yes |
| — Number of IO devices with prioritized startup, max. |
16 |
| — Number of connectable IO Devices, max. |
16 |
| — Number of connectable IO Devices for RT, max. |
16 |
| — of which in line, max. |
16 |
| — Activation/deactivation of IO Devices |
Yes |
| — Number of IO Devices that can be simultaneously activated/deactivated, max. |
8 |
| — Updating time |
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 |
| — PG/OP communication |
Yes |
| — S7 routing |
Yes |
| — Isochronous mode |
No |
| — Open IE communication |
Yes |
| — IRT |
No |
| — MRP |
No |
| — MRPD |
No |
| — PROFIenergy |
Yes |
| — Shared device |
Yes |
| — Number of IO Controllers with shared device, max. |
2 |
| Protocols |
| Supports protocol for PROFINET IO |
Yes |
| PROFIBUS |
Yes; CM 1243-5 required |
| AS-Interface |
Yes; CM 1243-2 required |
| Protocols (Ethernet) |
| ● TCP/IP |
Yes |
| ● DHCP |
No |
| ● SNMP |
Yes |
| ● DCP |
Yes |
| ● LLDP |
Yes |
| Open IE communication |
| ● TCP/IP |
Yes |
| — Data length, max. |
8 kbyte |
| — several passive connections per port, supported |
Yes |
| ● ISO-on-TCP (RFC1006) |
Yes |
| — Data length, max. |
8 kbyte |
| ● UDP |
Yes |
| — Data length, max. |
1 472 byte |
| Web server |
| ● supported |
Yes |
| ● User-defined websites |
Yes |
| Further protocols |
| ● MODBUS |
Yes |
| Communication functions |
| S7 communication |
| ● supported |
Yes |
| ● as server |
Yes |
| ● as client |
Yes |
| ● User data per job, max. |
See online help (S7 communication, user data size) |
| Number of connections |
| ● overall |
16; dynamically |
| Test commissioning functions |
| Status/control |
| ● Status/control variable |
Yes |
| ● Variables |
Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters |
| Forcing |
| ● Forcing |
Yes |
| Diagnostic buffer |
| ● present |
Yes |
| Traces |
| ● Number of configurable Traces |
2 |
| ● Memory size per trace, max. |
512 kbyte |
| Interrupts/diagnostics/status information |
| Diagnostics indication LED |
| ● RUN/STOP LED |
Yes |
| ● ERROR LED |
Yes |
| ● MAINT LED |
Yes |
| Integrated Functions |
| Number of counters |
3 |
| Counting frequency (counter) max. |
100 kHz |
| Frequency measurement |
Yes |
| controlled positioning |
Yes |
| Number of position-controlled positioning axes, max. |
8 |
| Number of positioning axes via pulse-direction interface |
Up to 4 with SB 1222 |
| PID controller |
Yes |
| Number of alarm inputs |
4 |
| Potential separation |
| Potential separation digital inputs |
| ● Potential separation digital inputs |
500V AC for 1 minute |
| ● between the channels, in groups of |
1 |
| Potential separation digital outputs |
| ● Potential separation digital outputs |
Relays |
| ● between the channels |
No |
| ● between the channels, in groups of |
1 |
| EMC |
| Interference immunity against discharge of static electricity |
| ● Interference immunity against discharge of static electricity acc. to IEC 61000-4-2 |
Yes |
| — Test voltage at air discharge |
8 kV |
| — Test voltage at contact discharge |
6 kV |
| Interference immunity to cable-borne interference |
| ● Interference immunity on supply lines acc. to IEC 61000-4-4 |
Yes |
| ● Interference immunity on signal cables acc. to IEC 61000-4-4 |
Yes |
| Interference immunity against voltage surge |
| ● on the supply lines acc. to IEC 61000-4-5 |
Yes |
| Interference immunity against conducted variable disturbance induced by high-frequency fields |
| ● Interference immunity against high-frequency radiation acc. to IEC 61000-4-6 |
Yes |
| Emission of radio interference acc. to EN 55 011 |
| ● Limit class A, for use in industrial areas |
Yes; Group 1 |
| ● Limit class B, for use in residential areas |
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 |
|
| ● IP20 |
Yes |
| Standards, approvals, certificates |
| CE mark |
Yes |
| UL approval |
Yes |
| cULus |
Yes |
| FM approval |
Yes |
| RCM (formerly C-TICK) |
Yes |
| KC approval |
Yes |
| Marine approval |
Yes |
| Ambient conditions |
| Free fall |
| ● Fall height, max. |
0.3 m; five times, in product package |
| Ambient temperature during operation |
| ● min. |
-20 °C |
| ● max. |
60 °C |
| ● horizontal installation, min. |
-20 °C |
| ● horizontal installation, max. |
60 °C |
| ● vertical installation, min. |
-20 °C |
| ● vertical installation, max. |
50 °C |
| Ambient temperature during storage/transportation |
| ● min. |
-40 °C |
| ● max. |
70 °C |
| Air pressure acc. to IEC 60068-2-13 |
| ● Operation, min. |
795 hPa |
| ● Operation, max. |
1 080 hPa |
| ● Storage/transport, min. |
660 hPa |
| ● Storage/transport, max. |
1 080 hPa |
| Altitude during operation relating to sea level |
| ● Installation altitude, min. |
-1 000 m |
| ● Installation altitude, max. |
2 000 m |
| Relative humidity |
| ● Operation, max. |
95 %; no condensation |
| Vibrations |
| ● Vibration resistance during operation acc. to IEC 60068-2-6 |
2 g (m/s²) wall mounting, 1 g (m/s²) DIN rail |
| ● Operation, tested according to IEC 60068-2-6 |
Yes |
| Shock testing |
| ● tested according to IEC 60068-2-27 |
Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms |
| Pollutant concentrations |
| ● SO2 at RH < 60% without condensation |
S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free |
| Configuration |
| Programming |
| Programming language |
| — LAD |
Yes |
| — FBD |
Yes |
| — SCL |
Yes |
| Know-how protection |
| ● User program protection/password protection |
Yes |
| ● Copy protection |
Yes |
| ● Block protection |
Yes |
| Access protection |
| ● Protection level: Write protection |
Yes |
| ● Protection level: Read/write protection |
Yes |
| ● Protection level: Complete protection |
Yes |
| Cycle time monitoring |
| ● adjustable |
Yes |
| Dimensions |
| Width |
90 mm |
| Height |
100 mm |
| Depth |
75 mm |
| Weights |
| Weight, approx. |
380 g |
| last modified: |
02/07/2019 |
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