ABB DX581-S 1SAP284100R0001 Functional Safety I/O Port

Availability: 10 left in stock

ABB DX581-S Safety I/O Module Configured for high-integrity safety functions in AC500-S PLC networks, the ABB DX581-S (1SAP284100R0001) operates as...

SKU: DX581-S 1SAP284100R0001

Manufacturer: ABB
Product No.: DX581-S 1SAP284100R0001
Product Type: Safety I/O Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 550g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

ABB DX581-S Safety I/O Module

Configured for high-integrity safety functions in AC500-S PLC networks, the ABB DX581-S (1SAP284100R0001) operates as a dedicated hardware component for SIL3-rated digital signal monitoring and fail-safe output execution.

Hardware Specifications

Parameter	Specification
Model	DX581-S
Brand	ABB
Origin	Germany
Weight	~0.3 kg
Dimensions	76 x 67.5 x 62 mm
Operating Temp	-25 deg C to 60 deg C
Power Consumption	24 V DC (Nominal)
Safety Inputs (SDI)	8 channels
Safety Outputs (SDO)	8 channels
Output Current	0.5 A per channel

Functional Safety and Loop Integrity

The DX581-S utilizes a robust internal diagnostic architecture to meet SIL3 and PLe safety requirements. The module executes fail-safe state transitions by monitoring input loop integrity via four dedicated pulse outputs, which detect cross-talk and short circuits to external voltage sources. Galvanic isolation between the safety-related I/O and the backplane logic ensures that faults within the field wiring do not propagate to the safety CPU. The configuration of SDI channels allows for dual-channel sensor evaluation, which is required to achieve the highest levels of risk reduction for emergency stop systems and safety light curtains.

Frequently Asked Questions

Q: Can the DX581-S be utilized in a mixed I/O environment with non-safety components?

A: Yes, the DX581-S is designed to operate within the AC500-S ecosystem, allowing it to reside on the same bus as non-safety I/O. However, the system architecture must enforce strict separation between safety-critical logic and standard control processes to maintain the required safety integrity level.

Q: How does the module handle output failures?

A: The module performs real-time monitoring of output voltage and current. Upon detection of a wire break, short circuit, or internal hardware fault, the module transitions the affected outputs to a de-energized state (fail-safe) and communicates the fault diagnostic to the safety CPU.

Field Installation Guidelines

Mounting: Snap the module onto a standard DIN rail. Ensure the module is properly seated and the lateral bus connectors are engaged with adjacent I/O modules to maintain the safety bus continuity.
Wiring Standards: Utilize shielded, color-coded cabling for safety I/O signals to prevent crosstalk. Terminate shields to the designated protective earth (PE) terminal to maintain EMI immunity. Adhere to strict wire separation distances between safety circuits and high-power load cabling.
Loop Validation: Prior to safety-logic activation, verify every channel's loop impedance and perform a function test using the system's test pulse features to ensure no cross-wiring exists between SDI/SDO paths.
Environment: Verify that the operating environment does not exceed -25 deg C to 60 deg C. Since the device is IP20 rated, ensure the control cabinet provides adequate protection against dust and liquid ingress, as safety performance can be compromised by environmental contamination.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.