Basic Information

• Manufacturer: Emerson Automation Solutions

• Series: Ovation DCS

• Origin: United States

• Function: Captures 16 channels of dry/wet contact signals with on‑board 48VDC contact wetting power; supports Sequence of Events (SOE) logging with 1 ms timestamp resolution for critical contact monitoring.

• Weight: Approx. 0.6 kg

• Status: Original new / refurbished available

• Warranty: 12 months

Specifications

• Channel Count: 16 single‑ended digital inputs (contact wetting)

• Wetting Voltage: 48 VDC (on‑board auxiliary, 42–55 VDC range)

• Input Signal Type: Dry contact / wet contact (relay, switch)

• Logic Thresholds:

  • ON: Contact closed (senses 48VDC loop)

  • OFF: Contact open (no loop current)

• Isolation: 1500 Vrms (channel‑to‑backplane)

• Response Time: ≤1 ms (high‑speed)

• SOE Resolution: 1 ms (per‑channel time stamping)

• Operating Temp: 0°C to 60°C

• Storage Temp: -40°C to 85°C

• Humidity: 5%–95% non‑condensing

• Bus Interface: Ovation I/O bus (hot‑swap capable)

• Connector: 50‑pin edge connector (mates with 1B30035H01 / 1B30053H01‑2 bases)

Key Features

• Integrated 48VDC contact wetting supply – no external power needed for dry contacts

• 1 ms high‑speed response & SOE accuracy for precise contact event capture

• 16‑point density optimized for dry contact monitoring (relays, limit switches)

• Eliminates need for external interposing relays in contact circuits

• LED status indicators per channel (ON/OFF) for quick visual check

• Hot‑swap compatible (replace online without system shutdown)

• Advanced diagnostics: open‑circuit detection, wetting voltage fault logging

• Backward compatible with all Ovation DCS revisions

• Industrial‑grade surge and ESD protection for harsh environments

Application Fields

• Power generation (thermal, combined‑cycle, nuclear) – SOE for relay/switch contacts

• Petrochemical, refining – dry contact monitoring for safety interlocks

• Monitoring of relay contacts, limit switches, pressure switches (dry circuit)

• Motor control centers (MCC) – contact status monitoring

• Safety alarm systems requiring precise 1 ms event timing

• Ovation DCS I/O cabinet expansion for dry contact input