General information | | | |
Product type designation | CPU 1211C AC/DC/Relay | CPU 1211C DC/DC/DC | CPU 1211C DC/DC/Relay |
Engineering with | | | |
| STEP 7 V14 or higher | STEP 7 V14 or higher | STEP 7 V14 or higher |
Supply voltage | | | |
Rated value (DC) | | | |
| | Yes | Yes |
Rated value (AC) | | | |
| Yes | | |
| Yes | | |
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 |
Load memory | | | |
| 1 Mbyte | 1 Mbyte | 1 Mbyte |
| with SIMATIC memory card | with SIMATIC memory card | with SIMATIC memory card |
Backup | | | |
| Yes | Yes | Yes |
CPU processing times | | | |
for bit operations, typ. | 0.085 µs; / instruction | 0.085 µs; / instruction | 0.085 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 |
Data areas and their retentivity | | | |
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 |
Process image | | | |
| 1 kbyte | 1 kbyte | 1 kbyte |
| 1 kbyte | 1 kbyte | 1 kbyte |
Time of day | | | |
Clock | | | |
| Yes | Yes | Yes |
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) |
Digital outputs | | | |
Number of digital outputs | 4; Relays | 4 | 4; Relays |
| | 4; 100 kHz Pulse Train Output | |
Analog inputs | | | |
Number of analog inputs | 2 | 2 | 2 |
Input ranges | | | |
| Yes | Yes | Yes |
Analog outputs | | | |
Number of analog outputs | 0 | 0 | 0 |
1. Interface | | | |
Interface type | PROFINET | PROFINET | PROFINET |
Physics | Ethernet | Ethernet | Ethernet |
Functionality | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| No | No | No |
Communication functions | | | |
S7 communication | | | |
| Yes | Yes | Yes |
Open IE communication | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
Web server | | | |
| Yes | Yes | Yes |
Number of connections | | | |
| 16; dynamically | 16; dynamically | 16; dynamically |
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 | |
Ambient conditions | | | |
Ambient temperature during operation | | | |
| -20 °C | -20 °C | -20 °C |
| 60 °C | 60 °C | 60 °C |
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 |
Configuration | | | |
Programming | | | |
Programming language | | | |
| Yes | Yes | Yes |
| Yes | Yes | Yes |
| 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 |