Description

1. Product Title

Siemens 6ES7314-6EH04-0AB0 – SIMATIC S7-300 CPU 314C-2PN/DP Compact PLC Central Processing Unit

2. Product Overview

The 6ES7314-6EH04-0AB0 is a high-performance compact integrated CPU in Siemens classic SIMATIC S7-300 modular PLC family, model officially named CPU 314C-2PN/DP. It integrates abundant onboard digital/analog I/O channels and powerful built-in technological motion control functions, eliminating the need for extra FM function modules for small-scale positioning, counting and closed-loop regulation tasks. Equipped with two independent communication interfaces: one MPI/PROFIBUS DP multi-function port and a dual-port PROFINET Ethernet switch port, it supports daisy-chain PROFINET IO fieldbus networking, HMI touch panel connection, upper SCADA data transmission and cross-PLC S7 communication simultaneously. With 192KB work memory and rich interrupt processing resources, it executes complex sequential control, PID loop regulation and safety interlock logic stably. All I/O circuits have internal electronic short-circuit and overload protection, and it relies on MMC micro memory card for program storage and firmware upgrade, widely used in medium-sized standalone machinery and distributed automation systems.

3. Technical Specifications

• Brand: Siemens (SIMATIC S7-300 Series)
• Model: 6ES7314-6EH04-0AB0
• Full Name: CPU 314C-2PN/DP Compact CPU
• Warranty: One Year
• Condition: 100% New & Original

Core Memory & Power

• Work memory: 192 KB
• Power supply: 24 VDC (19.2 ~ 28.8 VDC allowable range)
• Requires MMC Micro Memory Card for program storage; includes 2×40-pin front connectors
• 

Onboard Integrated I/O Resources

1. Digital: 24 × 24VDC Digital Inputs / 16 × Transistor Digital Outputs (0.5A per channel)
2. Analog: 4 AI (supports 1×Pt100 thermal resistance temperature measurement) + 2 AO analog output

Built-in Technology Functions

• 4 channels high-speed counter, max 60kHz frequency
• 4 channels PWM pulse width modulation output (max 2.5kHz)
• Positioning control, frequency measurement, closed-loop PID control, cam curve function