ABB DIS880 Ability™ System 800xA® hardware selector

Features and benefits

• Digital input for 2-wire, 3-wire and externally powered 4-wire field devices

• Can be used in hazardous areas

• Field device power output current limited to 30 mA

• Channel to channel galvanic isolation

• Configurable software signal filter 0...100 ms

• Protected against wrong wiring

• Diagnostics:

– Loop supervision (open circuit and short circuit)

– Hardware error supervision

– Communication supervision

– Internal power supervision

• Sequence of Events (SoE)

• DIS880 supports both Normally Open (NO) and Normally Closed (NC) 24 V loops and both will

confirm to SIL3.

• Single loop granularity - each SCM handles a single channel

• Supports hot swap

• Mechanical locking slider which turns off field device power and/or output before removal

• Field disconnect function which can galvanically separate the field loop wiring from the SCM during

commissioning and maintenance

• All SCMs have electronic current limitation

• Mechanical keying to prevent insertion of wrong module type after commissioning

• 24V DC powered through Modulebus

• Configurable through parameters

• LED indicators on the SCM indicate the operational state of the module

• Certified for SIL3

Select I/O is an Ethernet networked, single-channel granular I/O system for the

ABB Ability™ System 800xA automation platform.Select I/O helps decouple project tasks,

minimizes the impact of late changes, and supports standardization of I/O cabinetry

ensuring automation projects are delivered on time and underbudget. A Signal Conditioning

Module (SCM) performs the necessary signal conditioning and powering of the connected field

device for one I/O channel.

The DIS880 is a Digital Input 24V Signal Conditioning Module for use in High Integrity applications

(certified for SIL3) supporting 2/3/4-wire devices with Sequence of Events (SOE).