Service & Upgrades

When the system already exists — but it isn't doing what you need

WTM can help investigate, modify and upgrade existing marine electrical and control systems where equipment has been replaced, components have become obsolete or new requirements have been introduced.

Existing Systems

The system you have today may not be the system that was originally built

Existing vessels evolve — equipment gets changed, temporary fixes become permanent and documentation may no longer match what is physically installed.

That makes existing-system work very different from designing something from a blank page.

The first job is understanding what is actually there.

Fault Finding

Find the cause, not just the symptom

Replacing the component closest to the fault does not always solve the problem.

The issue could sit in:

field wiring
a sensor
control power
an I/O channel
PLC logic
communications
an equipment interface
the machinery itself

The useful question is not:

Which component looks suspicious?

It is:

Where does the system stop behaving the way it should?

WTM can work through the connected electrical and control layers to help narrow down the cause.

Work from what the system is doing

1

Describe the symptom

What is happening now?

2

Define expected behaviour

What should the system be doing instead?

3

Follow the signal or command

Where does the information originate, where does it travel and where does the expected response disappear?

4

Isolate the cause

Separate symptoms from the actual failure point.

5

Correct and verify

Make the required change and check the system as a complete application.

System Upgrades

Modernise what needs changing without automatically replacing everything

A well-planned upgrade identifies what still works, what creates the limitation, what the new requirement is and what has to interface with the replacement. The objective is a practical system, not a larger replacement bill.

Obsolete PLC or I/O

When the existing control hardware has become difficult to support or expand.

New HMI

When operators need clearer information or the existing display no longer meets the requirement.

Added Sensors

When the vessel needs additional measurement, monitoring or alarms.

New Equipment

When replacement machinery has to communicate with an older control system.

Expanded Functions

When the vessel is being asked to do more than the original system was designed to support.

Panel Modification

When physical control hardware needs to change without replacing the complete assembly.

Changing Requirements

When the vessel changes, the control system may need to change with it

A system can be completely functional and still no longer suit the operating requirement.

New equipment, processes or expectations from the operator can create a need for modification rather than repair.

WTM can support changes such as:

additional I/O
new alarms
additional monitoring
modified control sequences
new equipment interfaces
panel changes
added operator functions
Work with what is there

Start with the installed system, not an assumption about what should replace it

The practical approach is to understand what is installed, what information is available and what part of the system is creating the limitation — before deciding what should change.

START WITH THE SYMPTOM

Describe what the system is doing — and what you need it to do instead.

You do not need to diagnose the fault before making contact. Start with what you can see, what has changed and what the expected behaviour should be.

Talk to WTM