Siemens SIMATIC S7-300 CPU 313C-2 PtP Compact PLC – 6ES7313-6BG04-0AB0

The Siemens SIMATIC S7-300 CPU 313C-2 PtP (6ES7313-6BG04-0AB0) is a compact programmable logic controller designed for industrial automation applications requiring reliable control, integrated digital I/O, and fast signal processing. It combines CPU functionality, digital inputs and outputs, an integrated power supply, and serial communication capabilities in a compact unit.

Featuring 128 KB of work memory, 16 digital inputs, 16 digital outputs, and three integrated high-speed counters supporting frequencies up to 30 kHz, this PLC is suitable for machine control, counting applications, and automated production processes. It supports MPI communication and includes an integrated RS485 interface for point-to-point (PtP) communication.

Technical Specifications

• Brand: Siemens

• Product Family: SIMATIC S7-300

• Product Type: CPU 313C-2 PtP Compact CPU

• Part Number: 6ES7313-6BG04-0AB0

• Work Memory: 128 KB

• Digital Inputs: 16

• Digital Outputs: 16

• High-Speed Counters: 3, up to 30 kHz

• Communication: MPI and integrated RS485 interface

• Rated Supply Voltage: 24 V DC

• Permissible Supply Voltage: 19.2–28.8 V DC

• Firmware Version: V3.3

• Hardware Functional Status: 01

• Programming Software: STEP 7 V5.5 SP1 or later, or STEP 7 V5.3 SP2 with HSP 204

• Front Connector: 1 × 40-pole connector

• Memory Card: Siemens Micro Memory Card (MMC) required

• Maximum MMC Capacity: 8 MB

• Product Status: Spare part / phase-out announced

Key Features

• Compact PLC design with integrated digital inputs and outputs.

• 128 KB work memory for control programs and automation tasks.

• Three high-speed counters for fast pulse and counting applications.

• MPI communication and an integrated RS485 interface for PtP communication.

• Integrated 24 V DC power supply.

• Suitable for industrial machine control and existing SIMATIC S7-300 installations.

Typical Applications

• Industrial machine automation

• Production and assembly lines

• Pulse counting and high-speed signal monitoring

• Packaging and material handling equipment

• Serial communication with compatible industrial devices

• Maintenance and replacement of existing S7-300 control systems

Compatibility and Installation

Verify the existing PLC configuration, communication requirements, firmware, STEP 7 engineering software, front connector, and Micro Memory Card before ordering. Confirm that the CPU 313C-2 PtP is appropriate for your application; it is different from the CPU 313C and CPU 313C-2 DP models.

Availability Notice

Siemens lists this product as a spare part and indicates that product phase-out was effective from October 1, 2023. Please confirm current stock, condition, warranty, and replacement compatibility with the supplier before purchasing