Siemens 6ES7314-6BH04-0AB0 Central Processing Unit
Warranty: 1 year
Condition : brand new in factory sealed box
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Detail
- Product NameSiemens 6ES7314-6BH04-0AB0 Central Processing Unit
- Item NO.6ES7314-6BH04-0AB0
- Weight0.7300 kg = 1.6094 lb = 25.7500 oz
- CategoryPLC
- BrandSiemens
- Creation Time2025-09-18
- Siemens Central Processing Unit
- S7-300 · CPU 314C-2 PtP · PM400
- CPU 314C-2 PtP · Compact CPU
6ES7314-6BH04-0AB0
Product Identification
6ES7314-6BH04-0AB0 is a SIMATIC S7-300 CPU 314C-2 PtP compact CPU from Siemens. It is designed for medium-performance applications requiring a combination of processing power, integrated I/O, and serial communication capabilities.
The CPU features 192 KB of working memory and an integrated RS485 point-to-point (PtP) interface (RS 422/485) for serial communication with external devices. It incorporates a built-in 24 V DC power supply and requires a SIMATIC Micro Memory Card (MMC) for program and data storage.
This model is part of the S7-300 CPU 314C-2 family and is identified by the order number 6ES7314-6BH04-0AB0. It is the successor to earlier versions such as 6ES7314-6BH04-0AB0 (previous generation).
- Siemens SIMATIC S7-300
- CPU 314C-2 PtP (compact)
- Part No: 6ES7314-6BH04-0AB0
- 192 KB working memory
- Built-in RS 485 interface
Engineering Data
General & performance
| Manufacturer | Siemens |
| Model | 6ES7314-6BH04-0AB0 |
| Product type | CPU 314C-2 PtP |
| Series | SIMATIC S7-300 |
| Working memory | 192 KB |
| Load memory (MMC) | Max 8 MB (required) |
| Processing time (bit) | 0.06 µs |
| Processing time (word) | 0.12 µs |
| Processing time (fixed point) | 0.16 µs |
| Processing time (floating point) | 0.59 µs |
| Interfaces | MPI + RS 422/485 |
Physical & environmental
| Supply voltage | 24 V DC |
| Voltage range | 19.2 – 28.8 V DC |
| Current consumption (typ.) | 660 mA |
| Power loss (typ.) | 13 W |
| Operating temperature | 0°C to +60°C |
| Mounting | DIN rail / Wall mount |
| Country of origin | Germany |
Functions
Integrated I/O
- 24 digital inputs — Built-in 24 V DC digital inputs for connecting sensors, switches, and other discrete devices.
- 16 digital outputs — Provides 16 digital outputs (500 mA per output) for controlling actuators, relays, and indicators.
- 4 analog inputs — Includes 4 analog inputs for measuring process variables such as pressure, temperature, and flow.
- 2 analog outputs — Provides 2 analog outputs for controlling actuators with analog signals.
- 1 Pt100 input — Integrated Pt100 input for direct connection of resistance temperature sensors.
Communication & counters
- 4 high-speed counters — Four 60 kHz fast counters for precise timing, frequency measurement, and pulse counting applications.
- Integrated RS485 (PtP) — Point-to-point interface for serial communication with external devices, printers, or other controllers.
- MPI interface — Integrated MPI (Multi-Point Interface) for communication with other S7-300 controllers, operator panels, and programming devices.
- Motion control — Capable of simple motion control without additional hardware, supporting velocity, position, and acceleration control.
Applications
The CPU 314C-2 PtP is widely deployed in industrial automation applications requiring medium performance with integrated I/O.
Lifecycle
Phased-out / Discontinued no longer in active production — limited spare-part availability
Product status: The 6ES7314-6BH04-0AB0 has been classified as PM400 (Phase Out Started / Product Cancellation) by Siemens. The effective product discontinuation date is 01.10.2023. The SIMATIC S7-300 family has been phased out and is no longer available through standard distribution channels.
Spare parts & support: Following the product phase-out, spare parts and support are available through Siemens' legacy support channels. The S7-300 family is expected to have spare-part availability for approximately 10 years after the phase-out declaration.
Replacement & migration:
- For existing S7-300 systems with this CPU, procure spare units while still available through authorized distributors or legacy stock channels.
- For new installations, Siemens recommends migrating to the SIMATIC S7-1500 platform for long-term support and availability.
- The SIPLUS version (6AG1314-6BH04-7AB0) is available as a spare/replacement with conformal coating for harsh environments.
- When migrating from older CPU versions (e.g., 6ES7314-6BG03), verify compatibility of the MMC and program before replacement.
Recommendation: For existing systems using this CPU, procure spare units while available. For new installations, migrate to the current S7-1500 portfolio.
