PLC Control Systems


Industrial Technology Systems Ltd (ITS) designs and implements Programmable Logic Controllers (PLC), ranging from single unit devices to large distributed rack-based systems. ITS also specialises in supplying PLC safety solutions to SIL 3.

ITS' experts recognise the importance of process knowledge and will work closely with you to gain a comprehensive understanding of your manufacturing environment, process and needs. By applying this understanding we are able to design and implement a system that will control your process effectively and meet your company’s operational objectives, both on time and within budget.

ITS' PLC services include:

  • Performing FEED and feasibility studies
  • Writing specifications for PLCs
  • PLC system recommendations
  • PLC design, installation and commissioning
  • Legacy system support, migration and reverse engineering services
  • Obsolescence management studies and upgrade strategies
  • Provision of PLC programmers for a day, week, year etc.
  • PLC modifications
  • Project management
  • PLC consultancy
  • Service level agreements

ITS' engineers understand the importance of scalability and are dedicated to providing control systems with excellent communication, scalability and flexibility features for future expansion, whilst also being able to identify the most appropriate solution not just for your current needs but also with the future in mind.

Systems range from standalone fixed I/O PLC systems to large complex, dual redundant and fault tolerant PLCs with 1000s of I/O points and multi communication links to third party systems.

In addition to standard analogue and digital inputs and outputs, ITS also provides control systems connected to devices and systems via Profibus, ProfiNet, EtherNetIP and Ethernet connections amongst many other communications networks which allows remote I/O deployment, cutting cabling and installation costs. ITS’ team has significant knowledge in design methodologies including Yourdon and CONCISE for the nuclear industry.

ITS offers a range of upgrade services to bring customers up to speed with the latest products from all mainstream automation vendors, including Siemens S5 to S7 and Allen-Bradley’s PLC-5 to ControlLogix upgrades.

ITS' team is experienced in the following leading automation vendors PLC systems amongst others:

  • Allen-Bradley CompactLogix
  • Allen-Bradley ControlLogix
  • Allen-Bradley GuardLogix
  • Allen-Bradley PLC5
  • Allen-Bradley SLC500
  • Mitsubishi FX, A and Q Series
  • Modicon 984 and Quantum
  • Siemens PCS 7
  • Siemens S5 and S7 (including latest redundant S7-1500)