Discover the added value of our Process Control and Automation team’s involvement in the revamping of a production workshop’s main PLC at the site of a global player in the healthcare sector.
Customer challenge
The workshop’s main PLC was a Siemens S7-300 connected to various Eurotherm or Wago remote input/output stations.
These stations enable data from the various actuators to be fed back as close as possible to the machine.
The main PLC also communicated with a supervision system developed on a proprietary system.
The aim of the project entrusted to Technord was to replace the main PLC as well as the remote inputs/outputs, while maintaining communication with the existing supervision system.
In addition, the electrical part (wiring of sensors and actuators from the control cabinets) also had to be renovated. A study had to be carried out by our teams to confirm the possibility of maintaining communication between the new PLC and the supervision system.
Technord’s solution
Once the study had been carried out and the electrical part refurbished, we moved on to the automation part:
- Replacement of the PLC by a Siemens ET200SP PLC
- Convert existing STEP7 program to TIA Portal
- Transfer of control loops previously managed by the two Eurotherm PLCs to the ET200SP PLC
- Setting up communication with the former supervisor
Gain for the customer
Following our intervention, the new automation architecture based on a Siemens ET200SP :
- Guarantees plant longevity
- Simplifies architecture by generalizing Siemens compared with previous architecture (Siemens + EuroTherm + Wago)
- Simplifies spare parts management (no need to keep Eurotherm and Wago systems in stock)
- Allows customer teams to take over control loop management more easily (no in-house expertise on Eurotherm PLCs)