The Siemens 6ES7314-6BH04-0AB0 is a compact S7-300 CPU 314C-2 PtP. It offers 192KB memory, 24 DI/16 DO, 5 AI/2 AO, and 60kHz high-speed counting for advanced industrial control.
The Siemens 6ES7314-6BH04-0AB0 represents a high-performance compact solution within the established SIMATIC S7-300 automation range. This CPU 314C-2 PtP model integrates extensive technical functions and diverse I/O interfaces into a single hardware unit. Engineers frequently select this module for decentralized automation tasks where space efficiency remains a critical priority.
The controller features 192 KB of integrated work memory to ensure rapid processing of complex instruction sets. It operates on a standard 24V DC power supply and utilizes an MPI interface for networking. Furthermore, the point-to-point (PtP) communication capability allows for direct serial data exchange with third-party devices and specialized sensors.
Although Siemens transitioned this model to a phase-out status in late 2023, it remains a vital component for existing systems. The unit provides a reliable bridge for legacy maintenance and targeted system upgrades in various industrial sectors. This CPU delivers a balanced combination of digital, analog, and technological functions for streamlined machine control.
| Feature | Detailed Specification |
| Manufacturer | Siemens |
| Product Family | SIMATIC S7-300 |
| Model Type | CPU 314C-2 PtP |
| Order Number | 6ES7314-6BH04-0AB0 |
| Work Memory | 192 KB |
| Digital I/O | 24 Inputs / 16 Outputs (24V DC) |
| Analog I/O | 4 Inputs / 2 Outputs / 1 PT100 |
| High-Speed Counters | 4 Channels (Up to 60 kHz) |
| Communication | MPI + RS422/485 (PtP) |
| Required Accessory | Micro Memory Card (MMC) |
The hardware includes twenty-four digital inputs and sixteen digital outputs to manage discrete industrial signals. Four analog inputs and two analog outputs handle continuous voltage or current measurements for process stability. Additionally, a dedicated resistance input supports direct PT100 temperature sensor connection for thermal monitoring.
Four onboard high-speed counters operate at frequencies reaching 60 kHz for precise event detection. The CPU also supports pulse width modulation and frequency measurement without extra functional modules. These features significantly reduce the total hardware cost for positioning and speed control applications.
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