ABB DX581-S Functional Safety I/O Module
The ABB 1SAP284100R0001, also cataloged as the DX581-S Safety I/O Module, operates as a dedicated hardware component for SIL3-rated digital signal monitoring and fail-safe output execution within AC500-S PLC networks. Configured to process high-integrity safety functions, the module executes real-time field signal acquisition while enforcing deterministic isolation. The architecture decouples physical input/output field connections from central processing operations to maintain continuous functional safety and loop integrity without risking control bus interruption.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DX581-S (1SAP284100R0001) |
| 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 |
Backplane Bus Communication Velocity & Functional Safety
The DX581-S establishes high-integrity data transfer with the host CPU through a dedicated internal safety bus. Engineered with high backplane bus communication velocity, the unit processes diagnostic frames concurrently with active control updates. Integrated galvanic isolation protects the internal backplane logic from ground potential shifts and high-voltage field faults. On-board firmware flash compatibility permits verified diagnostic updates, ensuring predictable fail-safe execution during cross-talk or short-circuit events without degrading real-time control system performance.
Frequently Asked Questions
Q: Can the DX581-S be utilized in a mixed I/O environment with non-safety components?
A: Yes, the module resides on the same physical bus alongside standard AC500 I/O modules. However, safety logic and standard control processes must remain strictly separated within the system configuration to preserve SIL3 compliance.
Q: How does the module handle output failures?
A: Integrated output circuitry monitors voltage and current levels in real time. If the module detects a wire break, short circuit, or internal fault, it forces the affected channels into a de-energized fail-safe state and reports diagnostics to the safety CPU.
Q: Does the DX581-S support dual-channel sensor evaluation?
A: Yes, the safety digital inputs (SDI) can be paired for dual-channel evaluation to meet maximum risk reduction requirements for emergency stops and light curtains.
Field Installation Guidelines
Mounting: Snap the module vertically onto a standard DIN rail inside an IP20-compliant enclosure. Ensure the lateral backplane bus connectors engage fully with adjacent modules to secure communication path continuity. Maintain sufficient clearance around top and bottom vents for natural convection cooling across the housing.
Wiring and Shield Grounding: Connect safety inputs and outputs using shielded, color-coded cables to minimize EMI and prevent crosstalk. Terminate all cable shields at the cabinet protective earth (PE) bus bar. Ensure power and safety signal cabling remain physically separated from high-voltage AC conductors and drive output lines.
Loop Validation: Measure loop impedance across all SDI and SDO circuits before energizing system logic. Utilize the internal test pulse feature to verify channel isolation and confirm that no cross-wiring or external potential feeds exist within the field loop.
Environmental Control: Confirm ambient enclosure temperatures stay within -25 deg C to 60 deg C during operation. Maintain clean cabinet conditions to protect the IP20 housing from dust accumulation or liquid contamination, which can degrade electrical insulation.
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, USAReliable 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, GermanyTop-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.
Lucas Müller
Operations Director, GermanyRelated Products
ABB NTAC-02 58967441 Pulse Encoder Interface Module
$99.00
$199.00
ABB 1SBL351001R8011 A50-30-11 DC Contactor
$99.00
$199.00
ABB NDCU-21 63985317B Drive Control Unit
$99.00
$199.00
ABB TB840A 3BSE037760R1 Modulebus Cluster Modem
$99.00
$199.00
ABB 1VCR017053G0006 VSC Power Supply and Control Board
$99.00
$199.00
ABB DSBC172 Advant Master Bus Repeater Module
$99.00
$199.00
ABB NPOW-41 Power Supply Board
$99.00
$199.00
ABB FPR3315101R1032 ICSI16D1 CS31 I/O Remote Unit 24 Vdc
$99.00
$199.00
ABB 3BHE021951R0124 KVC758 A124 Power Supply Module
$99.00
$199.00
ABB DSMB144 Memory Module (57360001-EL)
$99.00
$199.00
ABB GJR2332300R0100 88FV01F Procontrol P14 Control Module
$99.00
$199.00
ABB 3AUA0000090404 Semiconductor Fuse (170M5388)
$99.00
$199.00
ABB AI86-16 Analog Input Module
$99.00
$199.00
ABB D2D146-AA02-22 AC Centrifugal Fan
$99.00
$199.00
ABB HIEE300910R0001 Binary Input Module
$99.00
$199.00
ABB HESG447024R1 HEB67077-31B 70BT01C Bus Transmitter Module
$99.00
$199.00
ABB CMA121 3DDE300401 Synpol D DC Power Supply Module
$100.00
$200.00
ABB 07 KT 97 GJR5253000R0200 Advant Controller 31 Basic Unit
$100.00
$200.00
ABB 07KP60R101 Procontic T200 Communication Module
$100.00
$200.00
ABB 07 DI 92 Digital I/O Module GJR5252400R4101
$100.00
$200.00
ABB 07BT62R1 Procontic T200 Basic Module Rack
$100.00
$200.00
ABB 1SAP130300R0271 PM573-ETH AC500 Processor Module
$99.00
$199.00
ABB AO801 Analog Output Module 3BSE020514R1
$99.00
$199.00
ABB PS700 1JNL100175-851 Mach 3 Distributed I/O Unit
$99.00
$199.00
ABB 086444-005 Accuray Direct Fiber Optic Module
$99.00
$199.00
ABB DSAO120A 3BSE018293R1 Analog Output Board
$99.00
$199.00
ABB SDCS-PIN-41A 3BSE004939R1 Pulse Transformer Module
$99.00
$199.00
ABB HESG447260R2 70BA01C-S Procontrol P13 Bus End Module
$99.00
$199.00
ABB Bailey 6632094A1 Circuit Board
$99.00
$199.00
ABB DSTC404 Powered Terminator Module
$99.00
$199.00
ABB DO620 3BHT300009R1 Advant S600 Digital Output Module
$99.00
$199.00
ABB DI880 3BSE028586R1 Digital Input Module
$99.00
$199.00
ABB AI950S Advant S900 Temperature Input Module
$99.00
$199.00
ABB S200-TB3 Advant S200 I/O Terminal Block
$99.00
$199.00
ABB GJR2393100R1200 88FT05C-E Procontrol P14 Coupling Module
$99.00
$199.00
ABB AI625 Analog Input Module (3BHT300036R1)
$99.00
$199.00
ABB 3BHE032025R0101 PCD235A101 Exciter Control Module
$99.00
$199.00
ABB AO610 Analog Output Module 3BHT300008R1
$99.00
$199.00
ABB SOIA-01 3AXD50000007547 Optical Interface Adapter Board
$99.00
$199.00
ABB GJR2370800R0200 88FN02B-E Bus Coupling Module
$99.00
$199.00
ABB SD822 3BSC610038R1 Power Supply Module
$99.00
$199.00
ABB XF801 3BSE061579R1 Fast I/O Module
$99.00
$199.00
ABB 3DDE300402 CMA122 CPU Card
$100.00
$200.00
ABB 07KT92 Central Processing Unit GJR5250500R0902
$100.00
$200.00
ABB 07KR264 Procontic K200 Basic Configuration Unit
$100.00
$200.00
ABB 07DC92 GJR5252200R0101 Configurable Digital I/O Module
$100.00
$200.00
ABB 560PSR00 1KGT026500R0001 | RTU560 Power Supply
$99.00
$199.00
Guide
Translation missing: en.general.search.loading