

The SIEMENS SIMATIC S7-300 CPU 312, order number 6ES7312-1AE14-0AB0, is a robust and reliable central processing unit designed for compact automation solutions. It delivers exceptional performance for mid-range control tasks, combining a powerful 32 KB working memory with lightning-fast execution speeds. This CPU supports a wide range of program blocks and is fully compatible with the latest STEP 7 engineering software, making it a versatile choice for engineers seeking efficiency and scalability. Whether deployed in chemical processing or discrete manufacturing, this unit ensures stable and precise control.
| Specification | Details |
|---|---|
| Product Type | SIMATIC S7-300 CPU 312 |
| Order Number | 6ES7312-1AE14-0AB0 |
| Working Memory | 32 KB |
| Load Memory (MMC) | Up to 8 MB (max) |
| Retentive Memory | 32 KB (for data blocks) |
| Integrated Interface | MPI (Multi-Point Interface) |
| Power Supply | 24 V DC (19.2 V to 28.8 V range) |
| Power Protection | External protection recommended for supply cables |
| Bit Operation Time | Approx. 0.1 µs |
| Word Operation Time | Approx. 0.24 µs |
| Fixed-Point Arithmetic Time | Approx. 0.32 µs |
| Floating-Point Arithmetic Time | Approx. 1.1 µs |
| Max. Number of Data Blocks (DBs) | 1024 |
| Max. Number of Function Blocks (FBs) & Functions (FCs) | 1024 each (max. 32 KB each) |
| Organization Blocks (OBs) | OB1, OB10, OB20/21, OB32/33/34/35, OB40, OB100, OB80/82/85/87, OB121/122, etc. |
| S7 Counters | Unlimited (limited by RAM, retentive) |
| S7 Timers | Unlimited (limited by RAM, retentive) |
| Programming Software | STEP 7 V5.5 + SP1 or higher, or STEP 7 V5.2 + SP1 with HSP 218 |
| Application Areas | Chemical, Electronics, Electrical, and general industrial automation |
| Storage Media | Requires MultiMediaCard (MMC) – not included |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22