PLC programming as the link between planning and manufacturing

PLC programming connects the electrical design with the function of the machine or plant. Interface, scope and responsibility are agreed on a project-specific basis.

How does PLC programming fit into the project workflow?

The electrical design defines power supply, protection, signals and interfaces; the control software implements the required functions on that basis. To ensure both levels match, the I/O list, operating modes, safety functions, communication and approval process are agreed jointly.

Basis

Functional description and I/O list

Interface

Electrical design and control cabinet

Coordination

Coordination with electrical design and control cabinet manufacturing from a single source

Acceptance

Testing and approval as agreed

Points to agree

What is defined before work starts

Technical basis

Organisational framework

Process

From functional description to accepted control system

Electrical design and control software are interlinked: the schematic defines which signals are present at which terminals; the program implements the machine’s functions on that basis. If one side changes, the other has to be updated.

That is why the I/O list, operating modes and safety functions are agreed before programming begins.

Clarify the function

Jointly define the functional description, operating modes and sequences.

Align signals

Align the I/O list and I/O assignment with the schematic.

Program and test

Implement functions and test them according to the agreed procedure.

Accept and hand over

Carry out acceptance, document the status and hand over.

Upstream

Downstream

Frequently asked questions

Questions about PLC programming

Which documents are required for programming?

A functional description with operating modes and sequences, an I/O list with inputs and outputs, requirements for safety functions and communication, as well as specifications for the control platform, programming and plant standards.

How are electrical design and PLC programming connected?

The I/O list and I/O assignment in the schematic form the common basis. Changes on one level are carried over to the other and documented as a change, so that the control cabinet and the program share the same status.

Which control platform is used?

The platform is based on your specification or your plant standard and is defined before the project starts.

How is the control software accepted?

Testing, simulation where applicable, and acceptance are agreed as part of the scope of services before work begins. Handover of source code and modification rights is also settled in advance.

Let us assess your project from a technical perspective

Send us your existing documents, quantities, schedule and any special requirements. We will check which services and which manufacturing model fit your situation.