Emerson Ovation 1C31234G01 Contact Input Module

Overview

The Westinghouse 1C31234G01 (Emerson Ovation™) is a Contact Input Module also catalogued as a DI 48 VDC On-Board E-Mod. It interfaces discrete contact-closure signals from field devices into the Ovation distributed control system, providing real-time digital input acquisition with on-board electronics for compact I/O chassis installation.

Technical Specifications

• Manufacturer: Westinghouse / Emerson
• Model: 1C31234G01
• Type: Contact Input Module / DI 48 VDC On-Board E-Mod
• Channels: 16 discrete inputs (per verified industrial supplier)
• Voltage Range: 24 VDC to 48 VDC (per TopBrandsPLC); 48 VDC nominal (per DCSCenter)
• Input Impedance: 10 kΩ
• On-Board Electronics: E-Mod design eliminates separate personality module
• Weight: 0.33 – 2.0 kg

Environmental & Safety Ratings

• Operating Temperature: −40 °C to +70 °C (per TopBrandsPLC); 0 °C to +60 °C (generic Ovation spec)
• Storage Temperature: −40 °C to +85 °C
• Relative Humidity: 5 % – 95 % non-condensing
• Protection Level: IP20 (standard cabinet installation)

Key Features

• 16-channel compact digital input for high-density contact monitoring
• On-board E-Mod design integrates electronics directly on the module—no separate personality module required
• Wide voltage acceptance (24 VDC to 48 VDC) accommodates diverse field device voltages
• Real-time data acquisition with diagnostics and fault detection
• Rugged construction for continuous operation in industrial environments

FAQ

Q: What does "On-Board E-Mod" mean?
A> E-Mod stands for Electronics Module. The 1C31234G01 integrates the electronics directly on the module itself, unlike older Ovation architectures that required a separate Personality Module (PMOD) paired with an Electronics Module (Emod).

Q: What input voltage does this module require?
A> DCSCenter specifies 48 VDC nominal. TopBrandsPLC lists a wider range of 24 VDC to 48 VDC. Verify your specific field device voltage and Ovation chassis power configuration before installation.

Q: How many channels does 1C31234G01 provide?
A> Verified supplier TopBrandsPLC specifies 16 discrete input channels in a compact form factor.

Q: Can this module detect open-field wiring?
A> The module provides digital input monitoring. Open-wire detection and debounce filtering are typically configurable within the Ovation control software or depend on the specific I/O chassis diagnostic capabilities.

Installation Guidelines

1. Install the module into an available slot in the Ovation I/O chassis.
2. Connect contact-closure field wiring to the terminal block per channel.
3. Verify input voltage matches the field device specifications (24 V or 48 V).
4. Configure channel diagnostics and alarm thresholds via Ovation Workbench.
5. Ensure proper chassis grounding to prevent EMI interference on discrete inputs.

Selection Tips

• Order 1C31234G01 when you need compact, on-board digital input contact monitoring in Ovation systems.
• Verify whether your application uses 24 VDC or 48 VDC field contacts to ensure compatibility.
• Confirm your I/O chassis supports on-board E-Mod modules (as opposed to older PMOD/Emod paired architectures).
• For high-vibration environments, verify terminal block screw torque specifications to prevent loosening.