The SIEMENS SIMATIC S7-300 CPU 315-2DP (6ES7315-2AH14-0AB0) is a highly capable central processing unit designed for complex control systems in industries such as chemical, electronics, and process automation. This CPU combines a powerful 128 KB working memory with a dedicated PROFIBUS DP interface, allowing it to act as both a DP master and slave for efficient fieldbus communication. Its enhanced processing capabilities, including bit operations in just 0.1 µs and floating-point arithmetic optimized for speed, make it ideal for applications requiring high-speed data handling and precise control. The unit supports a wide range of programming blocks, including organization blocks (OBs), function blocks (FBs), and data blocks (DBs), with virtually unlimited counters and timers limited only by RAM. Engineered for reliability, it operates on a 24 V DC supply with a broad voltage tolerance and includes internal flash memory for program storage, expandable via optional MMC. This CPU is fully compatible with both STEP 7 V5.5+ and TIA Portal, ensuring seamless integration into existing or new automation architectures.
| Specification |
Details |
| Product Model |
6ES7315-2AH14-0AB0 |
| Product Series |
SIMATIC S7-300 |
| CPU Type |
CPU 315-2DP |
| Application Areas |
Chemical, electronics, electrical, process automation, and other industrial fields |
| Integrated Interfaces |
1 x PROFIBUS DP (master/slave); MPI interface (optional) |
| Power Supply |
24 V DC (range: 20.4 V to 28.8 V) |
| Power Protection |
External protection recommended (for power supply cables) |
| Storage Media |
Internal flash memory (no external MMC required for basic operation; expandable via optional MMC) |
| Working Memory |
128 KByte |
| Load Memory |
Internal flash memory with sufficient capacity; expandable with optional MMC |
| Retentive Memory |
Configurable within available memory |
| Supported Software |
STEP 7 V5.5 + SP1 or higher; TIA Portal |
| Bit Operation Time |
Approximately 0.1 µs |
| Word Operation Time |
Approximately 0.24 µs |
| Fixed-Point Arithmetic Time |
Approximately 0.32 µs |
| Floating-Point Arithmetic Time |
Optimized for complex calculations (faster than previous models) |
| Program Block Quantities |
Configurable DBs, FBs, and FCs (limited by internal memory); OBs include OB1, OB10-OB17, OB30-OB38, OB80-OB87, OB100-OB102, OB121-OB122, and more |
| Counters and Timers |
Unlimited (limited only by RAM capacity), with retentivity |
| Communication Capabilities |
High-speed via PROFIBUS DP; support for distributed I/O and intelligent field devices |
| Diagnostics and Error Handling |
Advanced diagnostics and error handling features |
| Additional Interfaces |
Optional integrated MPI and/or additional communication interfaces (depending on model variant) |
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