Basic Information

• Manufacturer: Emerson Automation Solutions

• Series: Ovation DCS

• Origin: United States

• Function: Monitors 32 channels of discrete on/off signals from field devices (switches, relays, contactors); converts 24/48 VAC/VDC input levels to logic signals for the Ovation control system.

• Weight: Approx. 0.5 kg

• Status: Original new / refurbished available

• Warranty: 12 months

Specifications

• Channel Count: 32 single‑ended digital inputs

• Input Voltage Levels:

  • 24 VAC/VDC (nominal)

  • 48 VDC (nominal)

• Logic Thresholds:

  • ON: ≥18 VAC/VDC

  • OFF: ≤5 VAC/VDC

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

• Input Impedance: ≥10 kΩ per channel

• Response Time: ≤10 ms (typical)

• 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

• 32‑point density reduces cabinet space and wiring cost

• Accepts both AC and DC field voltages (24 V standard, 48 V optional)

• High‑impedance inputs minimize loading on field contacts

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

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

• Advanced diagnostics: open‑circuit detection, 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)

• Petrochemical, refining, and gas processing

• Monitoring of limit switches, pressure switches, level switches

• Motor control centers (MCC) and relay logic interfaces

• Safety interlock and alarm system inputs

• Ovation DCS I/O cabinet expansion