ABB DI581-S B1 1SAP284000R0001 S500 Safety Digital Input Module

Description

Hardware & Electrical Specifications

‑ Manufacturer: ABB ‑ Compatible System: AC500‑S Safety PLC, S500 safety I/O system, PROFIsafe V2 ‑ Functional Type: Safety Digital Input Module ‑ Channels: 16 × 24 VDC safety digital inputs; 8 test‑pulse outputs ‑ Safety Rating: 16SDI for SIL2, 8SDI for SIL3 (dual‑channel mode) ‑ Input Voltage: 0‑30 VDC, nominal 24 VDC; input current 7 mA per channel ‑ Wiring: 1‑wire connection; dual‑wire cross‑check for SIL3 channels ‑ Input Filter: Software configurable 1 ms‑500 ms debounce time ‑ Backplane Communication: PROFIsafe over S500 internal safety bus ‑ Indicators: Front‑panel LED for module status, channel status and safety fault diagnosis ‑ Connectors: S500 backplane connector; mates with separate TU582‑S terminal unit ‑ Mounting: 35 mm DIN‑rail installation ‑ Enclosure Rating: IP20 ‑ Certification: TÜV, cULus, DNV, CE; SIL2 / SIL3 functional safety approval ‑ Hot‑swap: Hot‑swappable under system live operation

Environmental Specifications

‑ Operating Temperature: ‑20 °C ~ +60 °C ‑ Storage Temperature: ‑40 °C ~ +85 °C ‑ Relative Humidity: 5%‑95 % non‑condensing ‑ Vibration & Shock: Complies with IEC 61131‑2 industrial cabinet requirements

Mechanical Data

‑ Dimensions (W × H × D): 67.5 mm × 76 mm × 62 mm ‑ Weight: approx 0.122 kg

Core Functions

1. Safety discrete signal acquisition: Collect safety‑related field signals such as emergency stop, safety gates, limit switches for safety‑PLC logic processing.
2. Flexible SIL‑level configuration: Single‑channel mode for 16‑channel SIL‑2; dual‑channel cross‑comparison mode for 8‑channel SIL‑3 safety applications.
3. Circuit diagnostics via test pulses: Built‑in test‑pulse outputs detect field‑wire short‑circuit, open‑circuit and cross‑circuit faults.
4. PROFIsafe safety communication: Translate field safety signals via internal S500 bus to AC500‑S safety CPU with safety‑relevant data integrity protection.
5. On‑board diagnostic indication: LED status assists maintenance for channel fault, module failure and safety‑communication anomalies.

Installation, Replacement & Critical Warnings

1. Module supports hot‑swap; however, field safety sensor wiring should be isolated according to safety procedure before servicing terminal unit.
2. Must use matching TU582‑S safety terminal unit; non‑compliant terminal assembly voids SIL certification.
3. For SIL‑3 application, strictly follow dual‑channel field wiring requirements; mismatched wiring will degrade safety integrity level.
4. After replacement, verify hardware configuration, safety program download and PROFIsafe communication status via Automation Builder engineering software.

5. Common failure mode: Field‑side surge damage to input circuits; test‑pulse circuit faults. Investigate field sensor and cabling when channel diagnostic alarms trigger.