Description
The 1C31124G01 is a 16-channel Digital Output Module (Electronic Module / E-Mod) originally developed by Westinghouse and utilized extensively within the Emerson / Westinghouse Ovation Distributed Control System (DCS) platform. It is designed to receive discrete control commands from the system controller via the rack backplane and provide isolated 24VDC switching signals to drive field actuators, solenoid valves, contactors, and relays.
Technical Specifications
| Parameter | Value |
| Manufacturer | Westinghouse / Emerson Process Management |
| Product Series | Ovation DCS Platform |
| Part Number (MPN) | 1C31124G01 |
| Module Type | 16-Channel 24VDC Digital Output Module (E-MOD) |
| Field Output Voltage | 19.2 to 30 VDC (Nominal 24 VDC) |
| Channel Rating | 0.5A continuous per channel, 2A peak (1 second max) |
| Isolation | 2500 Vrms channel-to-backplane galvanic isolation; 500 Vrms channel-to-channel |
| Diagnostic Features | Built-in open-load and short-circuit fault detection |
| Operating Temperature | 0 °C to +60 °C (Standard industrial range) |
| Enclosure Protection | IP20 standard (intended for internal mounting within a controlled control cabinet rack) |
Supply Terms & Commercial Details
- Availability: Sourced through industrial automation surplus channels, specialized DCS spare parts distributors, and legacy hardware providers.
- Lead Time: In-stock hardware typically ships within 1 to 3 business days.
- Warranty: 12-month standard supplier replacement or repair warranty covering functional hardware defects.
- Condition: Available as New Surplus, Factory Open Box, or Fully Tested Refurbished (verify specific revision tags and test logs with your vendor prior to purchase).
- Pricing Note: Price is subject to market availability and obsolescence status; contact your vendor for a firm quote.
Engineering & Integration Guidance
When installing or replacing the 1C31124G01 module within an Ovation I/O rack, observe the following parameters:
- Hot-Swap Support: The module supports hot-swapping under normal operating conditions, allowing online replacement without shutting down the system rack or interrupting unrelated control loops.
- Rack Power Safety: Always verify rack backplane seating and ensure auxiliary loop power feeds are stable to avoid electrical arcing or inadvertent switching states on field actuators.
- Electrostatic Discharge (ESD) Handling: Always wear a grounded antistatic wrist strap and handle the printed circuit board assembly by its edges or faceplate to protect sensitive internal micro-circuitry from static damage.
Frequently Asked Questions
What is the primary function of the 1C31124G01?
It acts as a 16-channel digital output interface, taking discrete control logic from the Ovation controller and safely driving field-side devices such as solenoid valves, indicator lights, and interlock relays with isolated 24VDC power.
Does the module feature built-in diagnostics?
Yes. The module supports open-load and short-circuit fault detection mechanisms, feeding status data back to the Ovation system for rapid troubleshooting and alarm annunciation.
Is this module compatible with legacy Westinghouse systems?
Yes. Because Emerson’s Ovation platform evolved directly from legacy Westinghouse control architectures, this module operates seamlessly across both migrated and modern Ovation power generation and heavy industrial installations.
