SIEMENS 6ES7314-6CH04-0AB0
November 02, 2026

SIEMENS 6ES7314-6CH04-0AB0

SIEMENS 6ES7314-6CH04-0AB0 SIMATIC S7-300 CPU314C-2 DP compact CPU integrated 24DI 16DO 4AI 2AO PROFIBUS DP high-speed counter PWM machine control PLC spare parts

Description

SIEMENS 6ES7314-6CH04-0AB0

Overview

SIEMENS 6ES7314-6CH04-0AB0 is the SIMATIC S7-300 CPU 314C-2 DP compact CPU with integrated digital and analog I/O plus PROFIBUS DP interface. It is a combined controller for standalone machines and small distributed automation systems, widely supplied as exchange spare for S7-300 control cabinet overhaul and machine retrofit.

Features

SIEMENS 6ES7314-6CH04-0AB0 integrates 24 digital inputs, 16 digital outputs, 4 analog inputs and 2 analog outputs onboard, eliminating the need for extra I/O modules for small machine control. It carries one PROFIBUS DP port which can work as master or slave for connection to remote I/O, drives, encoders and HMI panels. SIEMENS 6ES7314-6CH04-0AB0 supports high-speed counting, frequency measurement, pulse width modulation and position control functions for simple motion tasks such as conveyor positioning and dosing control. It supports STEP7 programming with LAD, FBD, STL, SCL and GRAPH languages. Front LEDs display run, stop, error and diagnostic status for on-site troubleshooting. It supports timestamped diagnostics and alarm upload to SCADA and HMI systems. It complies with CE, UL and cULus standards for cabinet installation.

Specs

SIEMENS 6ES7314-6CH04-0AB0 Platform: SIMATIC S7-300. Type: CPU314C-2 DP compact CPU. Work memory: 128 KB. Integrated I/O: 24DI / 16DO / 4AI / 2AO. Communication: 1 × PROFIBUS DP. Special functions: high-speed counter, PWM, frequency measurement. Mounting: S7-300 U rack slot. Supply: 24VDC. This is an all-in-one compact CPU with built-in I/O, not a plain CPU or separate I/O module. SIEMENS 6ES7314-6CH04-0AB0 is widely supplied as service replacement spare for packaging, printing and handling machine control systems.

Principle

SIEMENS 6ES7314-6CH04-0AB0 executes user control program in cyclic scan mode. Onboard DI/DO reads sensor signals and drives actuators directly; analog channels process pressure, temperature and setpoint signals. The PROFIBUS DP port exchanges data with remote I/O and drives. The embedded motion functions of SIEMENS 6ES7314-6CH04-0AB0 process pulse signals independently of the main scan cycle to maintain stable positioning performance. If overload, program error or bus communication failure occurs, the CPU enters STOP mode or triggers configurable fault reaction in the user program.

Applications

SIEMENS 6ES7314-6CH04-0AB0 is deployed for packaging machines, printing equipment, material handling stations, water treatment skids and small HVAC control systems. It is selected for spare inventory and cabinet retrofit projects for existing S7-300 compact CPU systems. Modern replacement platform is Siemens S7-1200 / S7-1500.


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