- 20+in-house, multi-brand programmers
- 6brands: Siemens, Rockwell, Schneider, ABB, GE and Mitsubishi
- 30+DCS systems implemented internationally
- 4,000+process signals in a single project
We have more than 20 in-house, multi-brand programmers. We design and integrate industrial automation systems tailored to each plant, without limitations: from complex DCS systems to PLC-based solutions for discrete processes.
At Grupo Miesa we deliver turnkey industrial automation projects that provide full control, operational efficiency and maximum reliability. We have extensive experience both in critical continuous processes —cracking units, refining and heavy chemicals— and in the automation of discrete processes —conveyors, bottling plants and packaging lines.
Our versatility allows us to adapt each solution to the customer’s real operating environment, selecting the most suitable technology and architecture. We are involved in every phase: from engineering and programming to commissioning and technical support.
What we do
We design robust, safe and scalable solutions covering the whole project life cycle:
- Hybrid control architectures: DCS, PLCs, Edge, SCADA and virtualisation
- Control logic programming and standard libraries
- Integration with MCCs, instrumentation, electrical systems and third-party equipment
- Industrial networks and communications (Profibus, Profinet, Ethernet/IP, Modbus, OPC UA…)
- SCADA and HMI interfaces: PCS 7, WinCC, WinCC Unified, AVEVA System Platform, FactoryTalk, iFIX, Citect SCADA, TIA Portal…
- Specialists in functional safety systems
- Cybersecurity by design (IEC 62443)
- After-sales support, remote maintenance and system evolution
Do you have a control system that needs upgrading? Control system modernisation and migration →
Technology and flexibility
We work with multi-brand platforms, which lets us adapt each solution to the real needs of the plant, with no technology lock-in. We deploy systems on physical or virtualised infrastructure, optimising costs, maintenance and availability.

Proven experience in real processes
We have delivered projects in refining, energy, combined cycle, biomass, solar thermal, industrial boilers, chemicals, desalination, drinking water, pharmaceuticals and food, both in Spain and internationally.
More than 30 DCS systems implemented internationally.
Featured experience
01
Soybean processing
Complete automation on Siemens PCS 7 with more than 4,000 process signals, standard libraries (APL, IL, PAC / 3WL / 3VA, Softstarter), Virtual Commissioning with SIMIT to validate the logic before commissioning, and Siemens Safety Integrated for critical environments.
02
KHI recovery in the Gulf
Automation, electrical installation and instrumentation of the kinetic hydrate inhibitor evaporation and recovery system (UNIT 110 – KHI Removal) at one of the most important gas plants in the Gulf. A PCS 7 project in an ATEX environment.
03
Drinking water, desalination and wastewater
Plant automation with large-scale DCS systems (48 MLD): filtration and settling, reverse osmosis and ultrafiltration, disinfection, chemical dosing and sludge control, with a redundant architecture integrated with analysers, dosing units and variable speed drives.
04
Mori-No-Miyako biomass plant
Complete programming of the control system of a plant that generates electricity from biomass (wood pellets and palm kernel shells, PKS): redundant conveying and storage, dust hazard control and safe, efficient operation.
05
LPG terminal and filling plant
Two independent PCS 7 systems with an Emergency Shutdown System, safety matrix, ATEX CCTV, fire detection and extinguishing, and access control.
06
Control migration of a crude oil pumping station
From SMAR and Foundation Fieldbus to PCS 7 with redundant S7-400H controllers, ET 200iSP and Compact Field Units (CFU) in an ATEX zone, new variable speed drives and an Emergency Shutdown (ESD) system to IEC 61508.

