Emerson 1C31179G02 Ovation MAU Master‑Attachment Unit Electronic Module

Technical Specifications

Model:1C31179G02

Brand:Emerson

Product Type:MAU Master‑Attachment Unit Electronic Module

Applicable System:Emerson Ovation distributed control system thermal power plant DCS control cabinet

Matching Module:1C31181G02 MAU personality module

Remote I/O port quantity:4 communication ports

Max connected remote I/O drops:Up to 16 remote I/O nodes

Communication interface:Fiber‑optic remote I/O bus interface, matched with personality module

Backplane power:24VDC from Ovation I/O base

Isolation:1500V field‑to‑backplane galvanic isolation

Installation:Plug‑in install on Ovation I/O base, work together with MAU personality module

Common Revision:G02 hardware revised version

Status Indicator:On‑board LED for power, communication link and module fault indication

Built‑in Function:4‑channel remote I/O bus data transceiver, link fault diagnosis, surge interference suppression, realize multi‑path long‑distance expansion of Ovation I/O subsystem for scattered field equipment

Working Temperature:0℃ ~ +60℃

Storage Temperature:‑40℃ ~ +85℃

Protection Class:IP20

Weight:0.62kg

Product Brief:

1C31179G02 is Emerson Ovation MAU Master‑Attachment Unit electronic module G02 hardware revision, upgraded 4‑port version compared with G01, must cooperate with 1C31181G02 personality module.

It is plugged onto matched I/O base, establishes four independent fiber‑optic remote bus communication channels to connect distributed remote I/O drops, greatly expands DCS I/O access capacity for scattered field devices.

This module supports up to 16 remote I/O nodes, widely used in large‑scale thermal‑power‑plant scenarios where multiple groups of field instruments are far away from main control cabinet, reduces long‑distance signal cable wiring workload.

1500V galvanic isolation separates remote bus side from DCS logic backplane, suppresses ground‑loop interference and transient surge damage.

Built‑in communication fault diagnosis LED indicators help field staff quickly locate link breakdown and module failure.

Supports hot‑swap operation, can be replaced online without system shutdown for convenient site maintenance.

No extra software configuration required after correct physical installation, system automatically identifies matched MAU personality hardware.

This is EOL discontinued spare part widely used for maintenance and renovation of thermal power plant Ovation DCS system.

Please confirm matching 1C31181G02 personality module model before purchase.

Strict ESD anti‑static protection shall be followed during installation and replacement.