Siemens 6ES7313-1AD03-0AB0: Compact & Efficient S7-300 CPU Module

Power smaller-scale automation projects reliably. The Siemens 6ES7313-1AD03-0AB0 is a compact CPU 313 module for the S7-300 series. This controller features 12 KB of integrated work memory and a fast processing speed. It is an excellent choice for standalone machines, conveyor controls, and basic process automation tasks.

Detailed Technical Specifications

• Product Model: Siemens 6ES7313-1AD03-0AB0 (CPU 313, S7-300 Series).
• Processing Power: 12 KB integrated work memory, 0.6 µs bit operation time.
• Integrated I/O Capacity: Supports a local rack with up to 8 modules (max. 256 DI/256 DO).
• Programming Resources: Up to 128 FBs, 128 FCs, 127 DBs, 64 counters, and 128 timers.
• Communication: MPI interface (187.5 kbit/s) for PG/OP, S7 basic, and global data communication.
• Power Supply: 24V DC (20.4-28.8V), typical power loss of 8W.
• Retentive Memory: Maintains data via battery or configurable retentivity without battery.
• Cycle Monitoring: Adjustable watchdogs from 1 ms to 6000 ms (150 ms default).

Installation & System Configuration

• Rack Configuration: Designed for a single central rack (CR) with a maximum of 8 expansion modules.
• Mounting Dimensions: Compact size: 80mm (W) x 125mm (H) x 130mm (D), weight approx. 530g.
• Memory Card: Requires a Micro Memory Card (MMC) for loading and backing up the user program.
• Programming: Fully programmable with Siemens STEP 7 software (V5.0 or higher).

Packaging & Service Information

• This product is supplied as a spare CPU module for repair or replacement.
• The CPU module is shipped securely to prevent damage during transit.
• We offer reliable global shipping via FedEx, UPS, and DHL.

Expert FAQs for Application Engineers

• What types of applications is this CPU best suited for?
  It's ideal for standalone machines with moderate I/O counts, such as packaging machines, material handling systems, and small process stations that require reliable logic control without complex networking.
• Can it communicate over Profibus DP?
  Not natively. The CPU has only an MPI interface. However, you can add a separate communication processor module (like CP 342-5) to the rack to enable Profibus DP master or slave functionality.
• How does the battery backup work?
  An optional battery module (typically plugged into the power supply) maintains the RAM when main power is off, preserving the complete user program and all retentive data areas.
• What is the difference between work memory and load memory?
  Work memory (12KB RAM) is where the currently executing program runs. Load memory is on the MMC card (up to 4MB Flash); it stores the entire project and is non-volatile. The CPU copies the active parts into work memory on startup.
• Is it suitable for safety-related applications (Safety)?
  No. The standard CPU 313 is not certified for safety functions. For safety applications, you need a dedicated Fail-Safe CPU from the S7-300F series.

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