IES provides a complete end-to-end service: from initial design through to site installation and aftercare. Every job is assigned a project manager, a fully trained engineer who acts as a single point of contact and all critical processes are carried out on site allowing a seamless, rapid service.

Legacy PLC Replacement


IES has extensive experience in the efficient and effective upgrade of Legacy Controllers. Our design reduces downtime, keeps outages to a minimum and maximises production.

Nick Szabo IES Panel Wireman 7 years

Nick Szabo IES Panel Wireman 7 years

We offer a complete solution for the maintenance, refurbishment and replacement of Legacy Control Systems. The following Legacy Controllers have been upgraded:

  • Allen Bradley PLC5
  • GEC Gem80
  • Mitsubishi K Series
  • Mitsubishi A Series
  • Mitsubishi F Series
  • Modicon 984 Series
  • Siemens S5

Plus various bespoke controllers, such as:

  • Moore Controllers
  • Moore Apacs
  • Truscott and Checkmark Batch Controllers