SIEMENS S7-1200 Standard CPUs – CPU 1211C
Overview
- Controller for intro to S7
- Expandable by:
- 1 signal board (SB), battery board (BB) or communication board (CB)
- Max. 3 communication modules (CM)
SIMATIC S7-1200 CPU 1211C Ordering data
Product No. / Product Description | Listprice / Your price | ||||||
![]() | 6ES7211-1AE40-0XB0 SIMATIC S7-1200, CPU 1211C, COMPACT CPU, DC/DC/DC, ONBOARD I/O: 6 DI 24V DC; 4 DO 24 V DC; 2 AI 0 – 10V DC, POWER SUPPLY: DC 20.4 – 28.8 V DC, PROGRAM/DATA MEMORY: 50 KB | ||||||
![]() | 6ES7211-1BE40-0XB0 SIMATIC S7-1200, CPU 1211C, COMPACT CPU, AC/DC/RELAY, ONBOARD I/O: 6 DI 24V DC; 4 DO RELAY 2A; 2 AI 0 – 10V DC, POWER SUPPLY: AC 85 – 264 V AC AT 47 – 63 HZ, PROGRAM/DATA MEMORY: 50 KB | ||||||
![]() | 6ES7211-1HE40-0XB0 SIMATIC S7-1200, CPU 1211C, COMPACT CPU, DC/DC/RELAY, ONBOARD I/O: 6 DI 24V DC; 4 DO RELAY 2A; 2 AI 0 – 10V DC, POWER SUPPLY: DC 20.4 – 28.8 V DC, PROGRAM/DATA MEMORY: 50 KB |
Design
The compact CPU 1211C has:
- 3 device versions with different power supply and control voltages.
- Integrated power supply either as wide-range AC or DC power supply (85 to 264 V AC or 24 V DC)
- Integrated 24 V encoder/load current supply:
For direct connection of sensors and encoders. With 300 mA output current also for use as load power supply. - 6 integrated digital inputs 24 V DC (current sinking/current sourcing (IEC type 1 current sinking)).
- 4 integrated digital outputs, either 24 V DC or relay.
- 2 integrated analog inputs 0 to 10 V.
- 2 pulse outputs (PTO) with a frequency of up to 100 kHz.
- Pulse-width modulated outputs (PWM) with a frequency of up to 100 kHz.
- Integrated Ethernet interface (TCP/IP native, ISO-on-TCP)
- 3 fast counters (100 kHz), with parameterizable enable and reset inputs, can be used simultaneously as up and down counters with separate inputs or for connecting incremental encoders.
- Expansion by additional communication interfaces, e.g. RS485 or RS232
- Expansion by analog or digital signals directly on the CPU via signal board (with retention of CPU mounting dimensions)
- Optional memory expansion (SIMATIC Memory Card)
- PID controller with auto-tuning functionality
- Integral real-time clock
- Interrupt inputs:
For extremely fast response to rising or falling edges of process signals. - Removable terminals on all modules
- Simulator (optional):
For simulating the integrated inputs and for testing the user program.
Device versions | ||||
---|---|---|---|---|
Version | Supply voltage | Input voltage DI | Output voltage DO | Output current |
| 24 V DC | 24 V DC | 24 V DC | 0.5 A, transistor |
| 24 V DC | 24 V DC | 5 … 30 V DC / | 2 A; |
| 85 … 264 V AC | 24 V DC | 5 … 30 V DC / | 2 A; |
Function
- Comprehensive instruction set:
A wide range of operations facilitates programming:- Basic operations such as binary logic operations, result allocation, save, count, create times, load, transfer, compare, shift, rotate, create complement, call subprogram (with local variables)
- Integral communication commands (e.g. USS protocol, Modbus RTU, S7 communication “T-Send/T-Receive” or Freeport)
- User-friendly functions such as pulse-width modulation, pulse sequence function, arithmetic functions, floating point arithmetic, PID closed-loop control, jump functions, loop functions and code conversions
- Mathematical functions, e.g. SIN, COS, TAN, LN, EXP
- Counting:
User-friendly counting functions in conjunction with the integrated counters and special commands for high-speed counters open up new application areas for the user. - Interrupt processing:
- Edge-triggered interrupts (activated by rising or falling edges of process signals on interrupt inputs) support a rapid response to process events.
- Time-triggered interrupts.
- Counter interrupts can be triggered when a setpoint is reached or when the direction of counting changes.
- Communication interrupts allow the rapid and easy exchange of information with peripheral devices such as printers or bar code readers.
- Password protection
- Test and diagnostics functions:
Easy-to-use functions support testing and diagnostics, e.g. online/offline diagnostics. - “Forcing” of inputs and outputs during testing and diagnostics:
Inputs and outputs can be set independently of cycle and thus permanently, for example, to test the user program. - Motion Control in accordance with PLCopen for simple movements.
- Library functionality
Programming
The STEP 7 Basic programming package permits complete programming of all S7-1200 controllers and the associated I/O.
S7-1200 Standard CPU 1211C Technical specifications
Article number | 6ES7211-1BE40-0XB0 | 6ES7211-1AE40-0XB0 | 6ES7211-1HE40-0XB0 | |
---|---|---|---|---|
CPU 1211C, AC/DC/RELAY, 6DI/4DO/2AI | CPU 1211C, DC/DC/DC, 6DI/4DO/2AI | CPU 1211C, DC/DC/RELAY, 6DI/4DO/2AI | ||
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 |