ABB DI581-S B1 1SAP284000R0001 Safety Digital Input Module

ABB DI581-S B1 1SAP284000R0001 is a safety digital input module for ABB AC500-S safety PLC system. It supports 16 safety input channels for SIL2 or 8 channels for SIL3, equipped with 8 built-in test pulse outputs to monitor field safety circuits.

This module complies with SIL3 and PL e safety standards, with reverse polarity, short circuit and overvoltage protection. It uses PROFIsafe communication and supports long cable connection up to 1000m. Widely used as spare parts for emergency stop and safety guard monitoring in machinery, chemical and automotive industries.

Main Specifications

1. Brand: ABB; Model: DI581-S B1, 1SAP284000R0001; Type: Safety Digital Input Module
2. Compatible System: ABB AC500-S safety PLC, S500-S I/O rack, PROFIsafe network
3. Core Functions: Safety signal collection, circuit supervision via test pulse, fault self-diagnosis, PROFIsafe communication
4. Input: 24VDC; 16SDI (SIL2) / 8SDI (SIL3), 8 test pulse outputs
5. Certification: SIL3, PL e; Max cable length: 1000m; Operating Temperature: 0℃ ~ +60℃
6. Feature: Reverse polarity & short circuit protection, front LED status indicator, rotary switch for PROFIsafe address
7. Supply Status: Original ABB safety I/O spare module for safety control cabinet maintenance

Core Functions

1. Collect safety digital signals such as emergency stop buttons and safety door switches for AC500-S safety controller.
2. Generate test pulse signals to supervise field wiring, detect wire breakage or short circuit in safety circuits.
3. Transmit safety data to safety CPU through PROFIsafe protocol, ensuring safe and reliable data transmission.
4. Comprehensive hardware self-diagnosis, front panel LED indicators display power, channel and fault status.
5. Built-in multi-protection circuit against reverse polarity, short-circuit and overvoltage to protect module and field sensors.
6. Standard S500 rack slot installation, fast replacement for safety system maintenance without complex reconfiguration.

Application Scenarios

1. Safety signal acquisition unit for ABB AC500-S safety PLC in automated production lines and packaging machines.
2. Fault module replacement and routine maintenance of safety control cabinets in chemical, automotive and metallurgy plants.
3. Functional safety system upgrade for equipment emergency stop, safety guard and zone access monitoring projects.
4. Emergency replacement for module failure to restore safety interlock and protection logic of production equipment.
5. Spare parts stocking for maintenance teams operating ABB AC500-S safety automation platforms.
6. Aftermarket spare supply for safety control cabinet overhaul and machinery safety compliance transformation projects.

FAQ

1. Q: Can ABB DI581-S B1 work with standard AC500 non-safety PLC?
   A: It is a safety I/O module, only compatible with AC500-S safety CPU and PROFIsafe network.
2. Q: What are typical safety module failure symptoms?
   A: Channel fault alarm, loss of PROFIsafe communication, safety signal cannot be detected, module red fault LED on.
3. Q: How to complete commissioning and diagnosis?
   A: Install module on TU582-S1 terminal unit, set PROFIsafe address, configure safety program and test safety input channels.