3BSE008843R1

1. Product NameDigital Input Module for ABB Advant OCS/S800 I/O Series
2. Product DescriptionThe ABB 3BSE008843R1 is a high-reliability digital input module belonging to ABB’s S800 I/O product line, specifically designed for distributed industrial automation and process control systems. As a key field-side component, it is responsible for collecting discrete digital signals from field devices such as limit switches, push buttons, proximity sensors, and contactors, and transmitting the signals to the upper-level controller (e.g., ABB Advant OCS or AC 800M) via the Profibus DP or ABB Remote I/O bus.
   The module features channel-level electrical isolation (between channels and between channels and the bus) to effectively suppress electromagnetic interference in harsh industrial environments, ensuring accurate signal acquisition even in high-noise scenarios. It supports hot-swappable functionality, allowing maintenance personnel to replace the module without powering off the entire system, which minimizes production downtime. With a compact design, it can be installed in both cabinet-mounted and field-mounted I/O racks, making it suitable for various industrial applications such as petrochemical plants, power generation facilities, and manufacturing production lines. It is fully compatible with ABB’s standard control system configurations and complies with international industrial safety and EMC standards.
3. Product Parameters
   

   Parameter Category	Specific Content
   Input Channel Specifications	16 digital input channels; single-ended input type; dry contact/wet contact compatible
   Input Voltage Range	Rated input voltage: 24 V DC; operating voltage range: 19.2 V DC – 30 V DC
   Signal Response Time	Typical on/off delay: ≤ 1 ms; adjustable delay for anti-interference (0.1 ms – 100 ms optional)
   Isolation Parameters	Channel-to-channel isolation: 500 V AC (1 min); channel-to-bus isolation: 1500 V AC (1 min); isolation barrier material: optocoupler
   Power Supply Parameters	Bus-powered via S800 I/O rack backplane; no external power supply required; typical power consumption: ≤ 2 W
   Environmental Adaptability Parameters	Operating temperature range: -40°C to +70°C; storage temperature range: -40°C to +85°C; relative humidity: 5% – 95% (non-condensing); vibration resistance: IEC 60068-2-6 (10 – 2000 Hz, 5 g acceleration)

4. Product Specifications

   Specification Category	Specific Content
   Physical Specifications	Dimensions: 40 mm × 140 mm × 120 mm (width × height × depth); net weight: approximately 0.25 kg; housing material: flame-retardant industrial plastic (UL94 V-0 rating)
   Installation Specifications	Mounting method: DIN rail mounting (35 mm standard rail) or S800 I/O rack slot mounting; plug-in terminal block for wiring (tool-free connection optional); supports hot swap
   Communication Specifications	Compatible with ABB Remote I/O bus and Profibus DP; integrated bus communication chip; front-panel LED indicators for channel status (ON = green, OFF = off) and module health (PWR = power, OK = normal operation)
   Certification & Reliability Specifications	Protection grade: IP20 (for cabinet installation only); compliance standards: IEC 61131-2, CE, UL, CSA; mean time between failures (MTBF): ≥ 300,000 hours at 40°C; service life: ≥ 15 years under typical operating conditions