Key Features
- CPU 312 central processing unit: SIMATIC S7-300 CPU 312 with Product type designation: CPU 312.
- Integrated MPI communication: Integrated RS 485 interface with MPI support and Transmission rate, max.: 187.5 kbit/s.
- Integrated power supply: Supply voltage, rated value (DC): 24 V, with permissible range from 19.2 V to 28.8 V.
- 32 KB work memory: Integrated work memory: 32 kbyte, not expandable.
- Micro Memory Card required: Plug-in (MMC) load memory: Yes, with maximum 8 Mbyte.
- Engineering with STEP 7: Programming package: STEP 7 V5.5 + SP1 or higher or STEP 7 V5.2 + SP1 or higher with HSP 218.
Applications
- MPI network communication: Communication on an MPI network through the integrated RS 485 interface.
- PLC program execution and memory storage: Central processing with integrated work memory and load memory on Micro Memory Card.
Technical Summary
| Product type designation | CPU 312 |
|---|---|
| Firmware version | V3.3 |
| Integrated work memory | 32 kbyte |
| Plug-in load memory (MMC), max. | 8 Mbyte |
| Supply voltage, rated value (DC) | 24 V |
| Supply voltage, permissible range, lower limit (DC) | 19.2 V |
| Supply voltage, permissible range, upper limit (DC) | 28.8 V |
| Integrated RS 485 interface | 1; MPI |
| MPI transmission rate, max. | 187.5 kbit/s |
| Power loss, typ. | 4 W |
| CPU processing time for bit operations, typ. | 0.1 μs |
Frequently Asked Questions
What is Siemens 6ES7312-1AE14-0AB0?
It is a SIMATIC S7-300 CPU 312 central processing unit with MPI and integrated power supply 24 V DC.
What power supply does the 6ES7312-1AE14-0AB0 use?
Rated value (DC): 24 V. The permissible range is 19.2 V to 28.8 V.
Which interface is built into this CPU?
It has 1 integrated RS 485 interface for MPI.
Which engineering software is supported for this model?
Programming package: STEP 7 V5.5 + SP1 or higher or STEP 7 V5.2 + SP1 or higher with HSP 218.
