Description
🔹 Product Overview
The MAN B&W 3157167-5 is an MCU Module designed for marine engine control and automation applications. MCU commonly refers to a Master Control Unit or main control module within the associated marine control architecture.
This module is identified with several related board markings, including MCU-0230-F, 1142352-0, and P.D. No. 15.0009.0. Available product identification also shows MCU Version 7 and various revision or configuration codes depending on the individual unit.
The 3157167-5 is used as a specialized marine automation PCB and should be replaced using the complete MAN B&W part number and matching hardware configuration. Similar MCU boards should not automatically be considered interchangeable.

⚙️ Main Features
🔹 MAN B&W marine automation component
🔹 MCU control module configuration
🔹 Multi-I/O control architecture
🔹 5 VDC electronic control environment associated with the board configuration
🔹 Marine engine control application
🔹 PCB-based industrial electronic design
🔹 Multiple board identification numbers
🔹 MCU-0230-F board designation
🔹 Associated PCB number 1142352-0
🔹 MCU Version 7 identified on available units
🔹 Suitable for marine automation maintenance and replacement
📋 Product Datasheet
🔹 Brand: MAN B&W
🔹 Model: 3157167-5
🔹 Product Name: MCU Multi-I/O Module
🔹 Product Type: Marine Engine Control Module
🔹 Module Designation: MCU-0230-F
🔹 Associated PCB Number: 1142352-0
🔹 P.D. Number: 15.0009.0
🔹 MCU Version: Version 7
🔹 Series/Application: Marine Engine Automation
🔹 Control Function: Master Control / Multi-I/O Processing
🔹 PCB Type: Marine Industrial Control PCB
🔹 Logic Supply Environment: 5 VDC electronic control configuration
🔹 Relay Function: Relay-based I/O interface configuration may be present depending on the specific board version
🔹 Weight: Approximately 3.3–3.35 kg, depending on the individual unit and configuration
🔹 Country of Origin: Verify from the physical nameplate or supplied unit
🔹 Mounting: System-specific marine control cabinet or engine automation assembly
🔹 Application: Marine Engine Control and Automation
🔹 Product Status: Legacy marine automation spare part
🔹 Replacement Requirement: Exact part number and revision matching recommended
Available units carrying part number 3157167-5 have been identified with related markings such as P.D. No. 15.0009.0, MCU-0230-F, PCB number 1142352-0, and MCU Version 7.
⚙️ Marine Engine Control Function
The 3157167-5 MCU Module is intended for use within a marine engine automation system.
A module of this type can serve as part of the electronic control structure responsible for processing control signals and interfacing with other components within the engine management or marine automation system.
The exact I/O assignment depends on the installed engine and automation configuration. For this reason, individual terminals, connectors, relays, and signals should always be checked against the original vessel documentation before replacement.
The module is therefore best described as a specialized marine engine control and automation PCB, rather than a general-purpose PLC module.
🔧 Hardware Identification
Several markings are important when identifying a replacement module.
Before purchasing or installing a replacement, check the following information on the existing unit:
🔹 3157167-5
🔹 MCU-0230-F
🔹 1142352-0
🔹 P.D. No. 15.0009.0
🔹 MCU Version 7
🔹 PCB revision number
🔹 COI or configuration identification
🔹 PCB layout number
Different units may carry different revision and configuration markings. These markings should be compared with the original module rather than relying only on the main 3157167-5 number.
🏭 Typical Applications
The MAN B&W 3157167-5 MCU Module is suitable for maintenance and spare-parts support in marine automation environments.
Typical applications may include:
🔹 Marine diesel engine control
🔹 Main engine automation
🔹 Auxiliary engine monitoring
🔹 Marine control cabinets
🔹 Engine management systems
🔹 Multi-I/O signal processing
🔹 Marine machinery automation
🔹 Vessel maintenance projects
🔹 Shipboard control-system replacement
🔹 Legacy marine electronic control support
Some market references identify the same part number as an MCU associated with marine engine control, while others associate it with MAN B&W engine or lubrication-related automation equipment. The exact application should therefore be confirmed from the installed vessel and engine documentation.
🛠 Installation and Replacement Guide
1. Verify the complete part number
Confirm that the installed module is marked:
3157167-5
Also compare associated numbers such as MCU-0230-F and 1142352-0.
2. Record the original configuration
Before removal, document:
🔹 Connector locations
🔹 Cable identification
🔹 Module position
🔹 PCB revision
🔹 Configuration markings
🔹 Associated engine control cabinet
3. Isolate the electrical system
Follow the vessel’s approved maintenance and electrical isolation procedures before removing the module.
4. Inspect the replacement unit
Check the PCB for:
🔹 Corrosion
🔹 Salt contamination
🔹 Damaged connectors
🔹 Broken relay components
🔹 Loose components
🔹 Burn marks
🔹 Damaged PCB traces
5. Install carefully
Ensure that all connectors are correctly aligned before applying pressure. Do not force a connector into the module.
6. Perform functional verification
After installation, check the relevant engine automation functions, I/O signals, alarms, and system diagnostics according to the vessel maintenance procedure.
⚠️ Marine engine control modules should be replaced and commissioned by qualified personnel familiar with the specific MAN B&W automation system.
🔄 Compatibility Notes
The MAN B&W 3157167-5 is a specialized marine control module.
A replacement should be selected based on:
🔹 Complete MBD number
🔹 PCB number
🔹 MCU version
🔹 Hardware revision
🔹 COI/configuration code
🔹 Connector arrangement
🔹 Original engine application
🔹 Vessel automation documentation
Do not replace this module with another MCU board simply because it has a similar appearance or MCU designation.
Available product references show that 3157167-5 units can carry different configuration codes and revision markings, including COI 614-B and COI 579-A on different identified units.
❓ Frequently Asked Questions
Q1: What is MAN B&W 3157167-5?
It is an MCU Module used as a marine automation and engine control PCB.
Q2: What does MCU mean?
MCU is commonly used to describe a Master Control Unit or main control module within an electronic control system.
Q3: What is the associated PCB number?
Available module identification lists 1142352-0 as an associated PCB number.
Q4: What is MCU-0230-F?
MCU-0230-F is a board designation associated with identified 3157167-5 modules.
Q5: What is P.D. No. 15.0009.0?
It is an associated identification number found on available 3157167-5 module references.
Q6: Is this a general-purpose PLC module?
No. It is a specialized marine automation PCB designed for a specific MAN B&W control environment.
Q7: Can a different MCU version be used as a replacement?
Not automatically. The MCU version, PCB number, revision, configuration code, and engine application should all be checked.
Q8: What is the approximate module weight?
Available product references list the module at approximately 3.3 to 3.35 kg, depending on the individual unit.
Q9: Should the configuration markings be checked before installation?
Yes. Configuration and revision markings are important for marine control equipment and should be compared with the original module.
⭐ Recommended MAN B&W Marine Automation Models
- MAN B&W 3157167-5 – MCU Multi-I/O Module
- MAN B&W 1142352-0 – MCU Control PCB
- MAN B&W MCU-0230-F – Marine Master Control Unit PCB
- MAN B&W 15.0009.0 – Associated MCU Board Identification
- MAN B&W 3157167-5.1 – Marine Master Control Unit
- MAN B&W 14.0230.0 – MCU Documentation/Board Revision Reference
- MAN B&W MCU Version 7 – Marine Engine Control PCB Configuration
- MAN B&W Alpha Lubricator MCU PCB – Marine Lubrication Control Application
- MAN B&W Marine Engine Automation Controller – System-Specific Control Module
- MAN B&W Marine I/O Control PCB – Engine Automation Interface Module
These items and designations may belong to related MAN B&W marine automation environments, but they are not confirmed as direct replacements for one another. Exact compatibility should always be verified from the installed system documentation.
🔍 Inspection Before Shipment
For a marine electronic spare part, recommended inspection includes:
🔹 Verify the 3157167-5 part number
🔹 Check MCU-0230-F identification
🔹 Verify associated PCB number 1142352-0
🔹 Inspect connectors and contact pins
🔹 Inspect relay components where fitted
🔹 Check PCB traces
🔹 Inspect for corrosion
🔹 Check for moisture damage
🔹 Inspect solder joints
🔹 Record revision and configuration codes
🔹 Perform functional testing when suitable equipment is available
🔹 Use ESD-safe packaging
📌 Product Identification
Brand: MAN B&W
Model: 3157167-5
Product Name: MCU Multi-I/O Module
Product Type: Marine Engine Control PCB
Associated PCB Number: 1142352-0
Board Designation: MCU-0230-F
P.D. Number: 15.0009.0
Application: Marine Engine Control and Automation
Key Selection Requirement: Match the complete part number, PCB configuration, MCU version, and revision before replacement.
