| Technical Specifications | |
| Model | CPU 1212C
AC/DC/Relay | CPU 1212C
DC/DC/Relay | CPU 1212C
DC/DC/DC | |
| Order number (MLFB) | 6ES7 212-1BD30-0XB0 | 6ES7 212-1HD30-0XB0 | 6ES7 212-1AD30-0XB0 | |
| General | | | | |
| Dimensions W x H x D (mm) | 90 x 100 x 75 | | | |
| Weight | 425 grams | 385 grams | 370 grams | |
| Power dissipation | 11 W | 9 W | | |
| Current available (SM and CM bus) | 1000 mA max. (5 VDC) | | | |
| Current available (24 VDC) | 300 mA max. (sensor power) | | | |
Digital input current consumption (24
VDC) | 4 mA/input used | | | |
| CPU Features | | | | |
| User memory | 25 Kbytes Work memory / 1 Mbytes Load memory/ 2 Kbytes Retentive memory | | | |
| On-board digital I/O | 8 inputs/6 outputs | | | |
| On-board analog I/O | 2 inputs | | | |
| Process image size | 1024 bytes of inputs/1024 bytes of outputs | | | |
| Signal modules expansion | 2 SMs max. | | | |
| Signal board expansion | 1 SB max. | | | |
| Communication module expansion | 3 CMs max. | | | |
| Technical Specifications | |
| Model | CPU 1212C
AC/DC/Relay | CPU 1212C
DC/DC/Relay | CPU 1212C
DC/DC/DC |
| High-speed counters | 4 total
Single phase: 3 at 100 kHz and 1 at 30 kHz clock rate
Quadrature phase: 3 at 80 kHz and 1 at 20 kHz clock rate | | |
| Pulse outputs | 2 at 1 Hz pulse rate | 2 at 100 kHz pulse rate | |
| Pulse catch inputs | 8 | | |
| Time delay / cyclic interrupts | 4 total with 1 ms resolution | | |
| Edge interrupts | 8 rising and 8 falling (12 and 12 with optional signal board) | | |
| Memory card | SIMATIC Memory Card (optional) | | |
| Real time clock accuracy | +/- 60 seconds/month | | |
| Real time clock retention time | 10 days typ./6 days min. at 40°C (maintenance-free Super Capacitor) | | |
| Performance | | | |
| Boolean execution speed | 0.1 μs/instruction | | |
| Move Word execution speed | 12 μs/instruction | | |
| Real Math execution speed | 18 μs/instruction | | |
| Communication | | | |
| Number of ports | 1 | | |
| Type | Ethernet | | |
| Data rates | 10/100 Mb/s | | |
Isolation (external signal to PLC
logic) | Transformer isolated, 1500 VDC | | |
| Cable type | CAT5e shielded | | |
| Power supply | | | |
| Voltage range | 85 to 264 VAC | 20.4 to 28.8 VDC | |
| Line frequency | 47 to 63 Hz | -- | |
Input current
CPU only at max. load
CPU with all expansion accessories
at max. load | 80 mA at 120 VAC
40 mA at 240 VAC
240 mA at 120 VAC
120 mA at 240 VAC | 400 mA at 24 VDC
1200 mA at 24 VDC | |
| Inrush current (max.) | 20 A at 264 VAC | 12 A at 28.8 VDC | |
| Isolation (input power to logic) | 1500 VAC | Not isolated | |
| Hold up time (loss of power) | 20 ms at 120 VAC
80 ms at 240 VAC | 10 ms at 24 VDC | |
| Internal fuse, not user replaceable | 3 A, 250 V, slow blow | | |
| Sensor power | | | |
| Voltage range | 20.4 to 28.8 VDC | L+ minus 4 VDC min. | |
| Output current rating (max.) | 300 mA (short circuit protected) | | |
| Maximum ripple noise (<10 MHz) | < 1 V peak to peak | Same as input line | |
| Isolation (CPU logic to sensor power) | Not isolated | | |
| Digital inputs | | | |
| Number of inputs | 8 | | |
| Type | Sink/Source (IEC Type 1 sink) | | |
| Rated voltage | 24 VDC at 4 mA, nominal | | |
| | | | | | | | |
