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 35 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)

– Communication supervision

– Internal power supervision

• Sequence of Events (SoE)

• DIS801 supports both Normally Open (NO) and Normally Closed (NC) 24 V loops

• 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