The Siemens SIMATIC S7-300 CPU 319-3 PN/DP, order number 6ES7318-3EL01-0AB0, is the flagship central processing unit of the S7-300 series, delivering unmatched performance for the most demanding industrial automation tasks. This CPU combines a high-speed processor with three built-in communication interfaces—PROFINET for real-time Ethernet, PROFIBUS DP for fieldbus connectivity, and MPI for programming and HMI access. With a working memory of 256 KB and support for load memory up to 32 MB via a standard MMC or CF card, it can handle extensive program blocks, including up to 4096 data blocks, function blocks, and functions. The CPU 319-3 PN/DP achieves a bit operation speed of just 0.1 µs, making it ideal for high-speed control loops, complex mathematical calculations, and multi-axis motion applications. Its robust design supports unlimited S7 counters and timers (limited only by RAM), with retentivity for critical data. Powered by a 24 V DC supply (19.2 V to 28.8 V range), it requires an external protection device for the power cable. Programming is accomplished via STEP 7 V5.5+ SP1 or higher, with additional tools like SIMATIC Manager and WinCC for visualization and monitoring. This CPU is a perfect choice for large-scale manufacturing, process control, and infrastructure systems where reliability, speed, and advanced communication are paramount.
| Specification |
Details |
| Product Series |
Siemens SIMATIC S7-300 |
| CPU Type |
CPU 319-3 PN/DP |
| Order Number (MLFB) |
6ES7318-3EL01-0AB0 |
| Integrated Interfaces |
1x PROFINET (RJ45), 1x PROFIBUS DP (RS485), 1x MPI (RS485) |
| Power Supply |
24 V DC (19.2 V to 28.8 V) |
| Power Protection |
External protection recommended for supply cable |
| Working Memory |
256 KB (for code and data) |
| Load Memory (MMC/CF) |
Maximum 32 MB |
| Retentive Memory |
256 KB (for retentive data blocks) |
| Bit Operation Time |
~0.1 µs |
| Word Operation Time |
~0.24 µs |
| Fixed-Point Arithmetic Time |
~0.32 µs |
| Floating-Point Arithmetic Time |
~1.1 µs |
| Data Blocks (DBs) |
Max. 4096 (max. 32 KB each) |
| Function Blocks (FBs) / Functions (FCs) |
Max. 4096 each (max. 32 KB each) |
| Organization Blocks (OBs) |
OB1, OB10, OB20/21, OB30-38, OB40, OB80/82/85/86/87, OB121/122, etc. |
| S7 Counters |
Unlimited (limited by RAM), retentive |
| S7 Timers |
Unlimited (limited by RAM), retentive |
| PROFINET Communication |
Real-time Ethernet, supports IRT, up to 100 Mbps |
| PROFIBUS DP Communication |
Master/Slave, up to 12 Mbps |
| MPI Communication |
Standard MPI, up to 187.5 kbps |
| Programming Software |
STEP 7 V5.5+ SP1 or higher |
| Additional Tools |
SIMATIC Manager, WinCC (for HMI/SCADA) |
| Storage Media |
MultiMediaCard (MMC) or CompactFlash (CF) card |
| Dimensions (W x H x D) |
Approx. 80 x 125 x 130 mm (without connectors) |
| Weight |
Approx. 0.5 kg |
| Ambient Temperature (Operation) |
0 °C to +60 °C (horizontal), 0 °C to +40 °C (vertical) |
| Certifications |
CE, cULus, FM, etc. |
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