The Siemens SIMATIC S7-300 CPU 312, model 6ES7312-5BF04-0AB0, is a compact yet powerful controller engineered for complex automation tasks in industries like chemical processing, electronics manufacturing, and general machine control. This CPU integrates a high-speed 32-bit processor with a dedicated MPI interface, enabling efficient data exchange and system integration. Its balanced memory architecture and extensive block support make it ideal for applications requiring modular programming and robust data handling.
| Category |
Specification |
| Product Type |
SIMATIC S7-300 CPU 312 |
| Order Number |
6ES7312-5BF04-0AB0 |
| Supply Voltage |
24 V DC (19.2 V to 28.8 V range) |
| Current Consumption (Typical) |
0.8 A (from backplane bus) |
| Power Loss (Typical) |
4.5 W |
| Work Memory |
32 KB |
| Load Memory |
Integrated; expandable via MMC up to 8 MB |
| Retentive Memory |
32 KB dedicated for data blocks |
| Bit Operation Time |
0.1 µs |
| Word Operation Time |
0.24 µs |
| Fixed-Point Arithmetic |
0.32 µs |
| Floating-Point Arithmetic |
1.1 µs |
| Integrated Interfaces |
1x MPI (up to 12 Mbps) |
| Max. Number of Digital I/O |
256 (with expansion modules) |
| Max. Number of Analog I/O |
64 (with expansion modules) |
| Max. Number of Data Blocks (DBs) |
1024 (max. 32 KB each) |
| Max. Number of Function Blocks (FBs) |
1024 (max. 32 KB each) |
| Max. Number of Functions (FCs) |
1024 (max. 32 KB each) |
| S7 Counters / Timers |
Unlimited (limited by RAM) |
| Organization Blocks (OBs) |
OB1, OB10, OB20, OB21, OB32–OB35, OB40, OB80, OB82, OB85, OB87, OB100, OB121, OB122 |
| Programming Software |
STEP 7 V5.5 + SP1 or higher (or V5.2 + HSP 218) |
| Ambient Temperature (Operation) |
0 °C to 60 °C (horizontal installation) |
| Ambient Temperature (Storage) |
-40 °C to 70 °C |
| Dimensions (W x H x D) |
40 mm x 125 mm x 130 mm |
| Weight |
Approx. 270 g |
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