6ES5928-3UB12 Siemens CPU 928B - Industrial PLC Controller
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SIMATIC S5-135U/155U CPU928B Central Controller Unit
Advanced programmable controller for industrial automation systems. This CPU module delivers fast bit and word processing with flexible operation modes. Perfect for single and multi-processor configurations in demanding environments.
Product Description
The CPU 928B is a high-performance central processing unit for SIMATIC S5-135U and S5-155U programmable controllers. It features dual PCB design in double Eurocard format with 2/3 front plate width. The unit supports up to 64K bytes of user memory and includes integrated DB RAM. With multiple operation modes including cyclic, time-controlled, and interrupt-driven processing, this CPU ensures reliable automation control.
Technical Specifications
Brand: Siemens
Model: 6ES5928-3UB12
Complete Suffix: 6ES5 928-3UB12
Memory Capacity: 64K bytes max (EPROM/RAM)
DB RAM: 46K bytes integrated
Flags: 2048 + 8192 S flags
Timers/Counters: 256 each
Program Blocks: PB 256, SB 256, FB 256, FX 256
Data Blocks: DB 256, DX 256
Supply Voltage: 5V ±5%, 24V +25%/-17%
Current Consumption: 5A typical at 5V
Dimensions: 40.64 × 233.4 × 160 mm (W×H×D)
Weight: Approx. 1 kg
Protection Rating: IP00
Installation Guide
Mount in S5-135U/155U central controller backplane. Use 2/3 standard plug-in station width. Connect to S5 bus via backplane connectors. Do not separate basic and expansion boards. Ensure proper voltage supply and grounding.
Compatibility
Works with S5-135U/155U central controllers. Supports multi-processor operation (up to 4 CPUs). Compatible with RAM/EPROM memory submodules. Programming via STEP 5 language. Interface options include V.24, TTY, RS422A/485, and SINEC L1.
Package Contents
CPU 928B Central Controller Unit (6ES5928-3UB12)
Installation documentation
Quality certificate
Warranty & Shipping
12-month warranty from date of purchase. We ship via FedEx, UPS, and DHL for fast delivery worldwide.
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