Product Introduction
When upgrading existing S7-300 control systems, the Siemens 6ES7313-1AD03-0AB0 CPU 313 provides a reliable and powerful foundation for mid-range automation tasks. This SIMATIC S7-300 CPU integrates a 24 V DC power supply and 12 KB of work memory, supporting up to 4K instructions. Designed for compact yet demanding applications, the Siemens 6ES7313-1AD03-0AB0 delivers efficient processing with typical bit operation times of 0.6 µs.
Technical Specifications Breakdown
| Parameter |
Value |
| Power supply rated value (DC) |
24 V DC |
| Inrush current, typ. |
8 A |
| Power loss, typ. |
8 W |
| Work memory (integrated) |
12 KB (4K instructions) |
| Load memory (expandable FEPROM, max) |
4 MB |
| CPU bit operation, typ. |
0.6 µs |
| Counters (S7) |
64 |
| Timers (S7) |
128 |
| Flags (max) |
256 bytes |
| Digital I/O (max) |
256 inputs / 256 outputs |
| Analogue I/O (max) |
64 inputs / 32 outputs |
| MPI transmission rate (max) |
187.5 kbit/s |
| Cycle time (adjustable range) |
1 ms–6000 ms |
| Dimensions (W x H x D) |
80 mm x 125 mm x 130 mm |
| Weight (approx.) |
530 g |
The Siemens 6ES7313-1AD03-0AB0 supports up to 127 data blocks (DBs) of 8 KB each and 128 function blocks (FBs) of 8 KB each, providing ample memory for complex automation programs. Its 128 S7 timers and 64 S7 counters with retentive options ensure reliable process control even during power interruptions.
Industry Applications
The Siemens 6ES7313-1AD03-0AB0 CPU 313 excels in applications such as manufacturing line control, material handling systems, and packaging machinery. Its integrated 24 V DC supply simplifies panel wiring, while the 12 KB work memory handles moderate-sized programs efficiently. For example, in a conveyor system, the CPU’s 64 counters can track product flow, and its 128 timers manage sequence delays with precision.
Installation & Setup Guidance
Mount the Siemens 6ES7313-1AD03-0AB0 on a standard S7-300 rail (max. one rack, eight modules). Connect the 24 V DC power supply to the integrated terminals. Use the MPI interface for programming with STEP 7 V5.0 (or higher). Ensure the bus cable length does not exceed 50 m without repeaters; with two repeaters, extend up to 1100 m. The CPU supports up to 32 nodes on the MPI bus, with a maximum of four static and four dynamic connections per CPU.
Compatibility & Integration
The Siemens 6ES7313-1AD03-0AB0 integrates seamlessly with other S7-300 modules and CP 342-5 for DP master functionality. It supports PG/OP communication, S7 basic communication, and S7 communication as a server. For expansion, use Flash EPROM memory cards (up to 4 MB) and work with STEP 7 V5.0. The CPU can be connected to PGs/PCs via the MPI interface, and it offers know-how protection through password protection for user programs.
Selection Guide & Purchasing Advice
Before purchasing a Siemens 6ES7313-1AD03-0AB0, verify that your existing system uses a 24 V DC power supply and that the rail can accommodate the module’s dimensions. Check compatibility with your current I/O modules and software version. For reliable sourcing, consider ubest101’s inventory of certified industrial automation parts. Order the Siemens 6ES7313-1AD03-0AB0 to upgrade your S7-300 system with a proven and robust CPU.