Description
The 1C31179G01 (often associated with Emerson, Westinghouse, and Ovation automation ecosystems) is a mission-critical Master-Attachment Unit (MAU) or Master-Connecting Unit designed for the Ovation Distributed Control System (DCS). It functions as the core communication engine for remote I/O nodes, facilitating high-speed, real-time data exchange between geographically distributed I/O bases and the central controllers.
Technical Specifications
| Parameter | Value |
| Manufacturer / Brand | Emerson / Westinghouse (Ovation Platform) |
| Product Type | Remote I/O Master-Attachment Unit (MAU) / Master-Connecting Unit |
| Part Number (MPN) | 1C31179G01 |
| Network Communication Speed | 100 Mbps (Fast Ethernet backbone compatibility) |
| System Redundancy | Supports fully redundant pairing configurations for uninterrupted process control (“Always-On”) |
| Diagnostics | Front-panel LED indicators for power health, communication link status, and internal faults |
| Environmental Protection | ISA-S71.04 Class G3 conformal coating for corrosion resistance in harsh industrial settings |
| Operating Temperature | 0 °C to +60 °C (Standard industrial range) |
| Physical Dimensions | 4.8 in × 2.0 in × 5.5 in (12.1 cm × 5.1 cm × 14.0 cm) |
| Approximate Weight | 0.3 kg (9.6 oz) |
Supply Terms & Commercial Details
- Availability: Sourced through industrial automation surplus channels, specialized DCS spare part 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 packaging and test records with your supplier 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, replacing, or maintaining the 1C31179G01 module within an Ovation remote node rack, observe the following parameters:
- Hot-Swap Capability: The module is designed to support hot-swapping under standard operational guidelines. In a redundant setup, the partner MAU maintains the network link while the replacement module is inserted.
- Node Communication Integrity: Ensure that fiber-optic or copper communication links connected to the MAU are clean and securely terminated to prevent packet loss across the remote branch.
- ESD and Handling Precautions: Always use a grounded antistatic wrist strap and handle the module by its faceplate or outer edges to prevent electrostatic breakdown of sensitive internal components.
Frequently Asked Questions
What is the primary role of the 1C31179G01 in an Ovation system?
It acts as the “brain” for a remote I/O drop or cluster. It collects data locally from connected I/O modules, packages it, and transmits it deterministically back to the primary plant controller over the network.
Is this module compatible with older Westinghouse systems?
Yes. Because the Ovation platform evolved from earlier Westinghouse architecture, this part is cross-compatible or utilized within legacy upgraded Westinghouse DCS frameworks managed via Emerson software suites.
How do I verify module health on-site?
Integrated diagnostic LED indicators on the front faceplate provide immediate visual feedback concerning power status, hardware health, and network communication traffic.
