JJA Group
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Siemens PLC automation

Siemens PLC & TIA Portal engineering for Ireland and the UK

S7-1500 programming, WinCC HMI and SCADA, integration, commissioning and migrations for manufacturing plants.

The challenge

Ageing Siemens controllers, undocumented code and stretched in-house teams are a common cause of downtime and stalled upgrades. Finding a TIA Portal engineer who can pick up an existing project, understand it and deliver changes safely is often harder than it should be.

JJA Group provides Siemens PLC engineering as a contractor or as a delivery partner. We deliver most engineering remotely from our base in Kraków, Poland, and travel to Ireland, the UK and Europe for build, FAT/SAT and commissioning.

What we do

  • Siemens S7-1500 PLC programming in TIA Portal, structured and documented for long-term maintenance
  • WinCC HMI and SCADA development, plus Citect SCADA support
  • Modbus TCP integration with drives, meters, packaged equipment and third-party systems
  • On-site and remote commissioning, I/O checkout and loop testing
  • Upgrades and migrations from legacy Siemens platforms to S7-1500 and current TIA Portal versions
  • Code review, fault finding and modifications to existing TIA Portal projects
  • Ongoing engineering support for manufacturing and pharma / life-sciences plants

Industries

Pharma & life sciences

Controlled, well-documented changes to process and utility systems that fit within your change control process.

Manufacturing

Line control, machine integration and upgrades planned around production windows.

Industrial automation

Integration of packaged equipment, utilities and plant-wide control over Modbus TCP and industrial networks.

How we work

  1. 01

    Enquiry

    Tell us about your plant, system and what you need.

  2. 02

    Scoping call

    We talk through the scope, constraints and timeline.

  3. 03

    Proposal

    You receive a clear proposal with scope and approach.

  4. 04

    Delivery

    We engineer, commission and document the work.

Frequently asked questions

Do you work on existing TIA Portal projects written by others?+

Yes. We regularly review, fault-find and extend existing Siemens projects. We start by understanding the current code and documenting what we change.

Can you migrate legacy Siemens PLCs to S7-1500?+

Yes. We scope the migration, convert and restructure the logic in TIA Portal, and plan the cutover and commissioning to keep production disruption to a minimum.

Do you support Modbus TCP integration?+

Yes. We integrate S7-1500 controllers with drives, power meters, packaged skids and other third-party devices over Modbus TCP.

Do you work on site in Ireland and the UK?+

Yes. We deliver most engineering remotely from our base in Kraków, Poland, and travel to Ireland, the UK and Europe for build, FAT/SAT and commissioning.

Can you work as a contractor inside our engineering team?+

Yes. We can work under your standards and project structure, or deliver a defined scope as a package.

Need a Siemens PLC engineer?

Tell us about your project and we will respond within one working day.

Request a quote