Emerson 1C31234G01 Ovation compact 16-channel digital input module with built-in 48VDC wetting voltage for dry contact acquisition, hot-swappable DCS spare.

Product Overview

• Part No: 1C31234G01
• Brand: EMERSON / Westinghouse Ovation

• Category: 16-Channel Compact Digital Input Module 1C31234G01 is a compact digital input module for Emerson Ovation DCS. It provides built-in 48VDC wetting voltage to detect dry contact signals from breaker auxiliary contacts, valve limit switches and equipment status contacts. Optical isolation separates field circuits and control logic bus to resist industrial electromagnetic interference. It supports configurable signal debounce to eliminate contact bounce. Hot-swap design enables online replacement without interrupting signal collection. Front panel LED indicators show module and channel status for quick on-site troubleshooting. It serves as essential maintenance spare for sequential control and interlock monitoring in thermal power plants.

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Core Features

• 16 independent digital input channels
• Onboard 48VDC wetting power supply for dry contact sensors
• Per-channel optical galvanic isolation
• Software configurable signal debounce function
• Comprehensive channel fault diagnostics
• Hot-swappable for online maintenance
• Front panel LED indicators for status visualization
• Compact form factor saving rack installation space

• Compliant with strict industrial EMC standards for 24/7 stable operation

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Technical Specifications

• Input Channels: 16 channels
• Input Type: 48VDC wetted dry contact input
• Isolation: Optical isolation between field and logic circuits
• Operating Temperature: 0°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Humidity: 5%–95% non-condensing
• Mounting: Ovation standard I/O rack installation

• Protection Class: IP20 when installed inside control cabinet

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Compatibility & Application

• Fully compatible with Emerson Ovation DCS controllers, I/O racks and matching base assemblies
• Widely deployed in thermal power plants and combined-cycle power stations
• Applied for collecting breaker status, valve feedback, pump running signals and safety interlock contact signals