The ABB DI581-S is a high-performance digital input module within the S500-S I/O system, designed for demanding industrial automation applications requiring functional safety. This module offers a flexible configuration of 16 standard digital inputs (SDI) at SIL2 or 8SDI at SIL3, making it suitable for diverse safety-critical processes. The DI581-S delivers reliable performance and simplifies integration into your existing S500 system. It provides accurate and timely data acquisition, ensuring efficient and safe operation of your machinery. Its robust design withstands harsh industrial environments and compliance with SIL2/SIL3 ensures high functional safety.
Key Features
16SDI at SIL2 / 8SDI at SIL3
24VDC input
1-wire connection
8 pulse outputs
Compact design for space-saving installation
Compliant with relevant safety standards (SIL2/SIL3)
Applications
Process Automation
Machine Safety
Robotics
Material Handling
Factory Automation
Frequently Asked Questions
The DI581-S complies with SIL2 and SIL3 safety integrity levels, making it suitable for critical safety applications.
The DI581-S requires a 24VDC power supply.
The module supports 16 digital inputs at SIL2 and 8 digital inputs at SIL3.
Technical Specifications
Part Number
1SAP284000R0001
Category
S500 I/O Modules
Height
76 mm
Width
67.5 mm
Depth
62 mm
Weight
0.122 kg
HS Code
85389091
Country of Manufacture
Germany
Part Number
1SAP284000R0001
Category
S500 I/O Modules
Height
76 mm
Width
67.5 mm
Depth
62 mm
Weight
0.122 kg
HS Code
85389091
Country of Manufacture
Germany
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...