Siemens 6ES5581-0EC12 SIMATIC S5 CP581 Communication Processor

SKU 6ES5581-0EC12

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12-month warranty
Free returns within 30 days

Manufacturer: Siemens
Product No.: 6ES5581-0EC12
Country of origin:Germany
Product Type: Communication Processor
Barcode: 85389099
Payment: T/T, Western Union
Weight: 1060g
Dimensions: 21.20cm x 15.60cm x 4.60cm
Shipping port: Xiamen
Warranty: 12 months

Description

The Siemens 6ES5581-0EC12 is a CP 581 (Communication Processor) module designed specifically for the legacy SIMATIC S5 programmable logic controller family. This "Basic Module" serves as an industrial PC/co-processor interface, featuring a 33 MHz clock speed and 4 MB of working memory. It is natively configured with MS-DOS 6.2 (German) and is engineered for seamless integration with S5-115U, S5-135U, and S5-155U/H systems. It effectively bridges the gap between traditional PLC logic and PC-based data processing or visualization tasks.

Features

Compatibility: Designed for S5-115U, -135U, and -155U/H series controllers.
Processing: Integrated 33 MHz processor for local data handling and communication tasks.
Memory: 4 MB of installed working memory for application data and buffering.
Operating System: Pre-configured with MS-DOS 6.2 (German version).
Industrial Utility: Enables advanced communication, diagnostics, and PC-based control functionality within the S5 ecosystem.

Applications

Legacy automation system upgrades and diagnostics.
Integration of PC-based functionality into S5 PLC racks.
Data acquisition and protocol handling in older manufacturing environments.
Maintenance and operation of legacy Siemens control architectures.

Technical Specifications

Parameter	Specification
Manufacturer	Siemens
Range	SIMATIC S5
Product Type	Communication Processor (CP 581)
Processor Speed	33 MHz
Working Memory	4 MB
Operating System	MS-DOS 6.2 (German)
Product Phase	Obsolete
Dimensions (cm)	21.2 x 15.6 x 4.6
Weight	1.06 kg
Commodity Code	85389099

Installation & Usage Guidelines

Module Placement: The CP 581 must be inserted into a compatible slot within the S5 rack backplane. Ensure the rack is powered down before installation to prevent electrical shorts.
Configuration: As this module runs MS-DOS, users may require specific SIMATIC programming software versions or terminal emulation tools to configure its internal communication parameters.
Memory Management: Given the 4 MB memory limit, ensure that any loaded applications or driver files are optimized for the MS-DOS environment.
Obsolete Status: As this is an obsolete component, sourcing replacements may be limited to the secondary market or refurbished stock. Always verify the condition of the internal battery and backup components if storing or commissioning long-term.

FAQ

Which SIMATIC S5 controller series is this module compatible with?

It is compatible with the S5-115U, S5-135U, and S5-155U/H systems.

What is the operating system for the 6ES5581-0EC12?

This module comes with MS-DOS 6.2 in German.

What is the current lifecycle status of this product?

The 6ES5581-0EC12 is classified as an obsolete product.

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Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Dots
Country of origin	Germany
Power source	AC-powered