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High-Performance Central Processing Unit for S5-95U Systems
The Siemens 6ES5942-7UF14 central processing unit delivers advanced computing power for SIMATIC S5-95U programmable controllers in mid-sized automation tasks. This CPU integrates a high-speed 16-bit processor that executes user programs rapidly for demanding control applications. It supports up to 32 expansion modules and offers comprehensive memory options for complex system requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES5942-7UF14 |
| Series | SIMATIC S5-95U |
| Product Type | Central Processing Unit (CPU) |
| Processor | 16-bit microcontroller |
| Program Memory (RAM) | 16 KB (battery-backed) |
| Program Memory (EPROM) | 16 KB (integrated, replaceable) |
| Data Memory (RAM) | 4 KB |
| Memory Expansion | Up to 32 KB via plug-in EPROM |
| Program Execution Speed | ~2.5 ms for 1K binary instructions |
| I/O Addressing Capacity | 256 bytes |
| Timers | 32 |
| Counters | 32 |
| Interfaces | 1 x 20mA (TTY) for programmer |
| Interfaces | 1 x SINEC L2 LAN (optional via adapter) |
| Supported Expansion | Up to 32 S5-100U I/O modules |
| Power Supply | 24V DC via backplane |
| Operating Temperature | 0°C to 60°C |
| Weight | 0.6 kg |
| Dimensions (W x H x D) | 25 x 120 x 116.4 mm |
| Protection Rating | IP20 |
Enhanced Processing Performance
The Siemens 6ES5942-7UF14 executes 1,000 binary instructions in approximately 2.5 milliseconds, delivering faster scan cycles than its predecessors. This speed improvement supports high-speed automation tasks, including packaging lines and motion control systems. The advanced 16-bit architecture also handles complex mathematical and logical operations efficiently.
Expanded Memory Architecture
This CPU provides 16 KB of battery-backed RAM for storing user programs and runtime data securely. It also includes 16 KB of integrated EPROM that retains critical system parameters without external power. Engineers can further expand program memory up to 32 KB using a plug-in EPROM module. The increased memory accommodates larger applications with extensive logic and data tables.
Comprehensive Timer and Counter Resources
The processor offers 32 timers and 32 counters, doubling the capacity of lower-tier CPUs. These resources support complex sequencing, timing, and counting operations without additional hardware. The generous timer/counter count suits applications requiring multiple independent control loops.
Communication Interfaces
This CPU includes a 20mA (TTY) current loop interface for connecting programming devices and operator panels. It also supports optional SINEC L2 LAN connectivity for integration into distributed automation networks. The dual interfaces ensure flexible connectivity options for diverse system architectures.