Mitsubishi FX1s PLC
At Martronic, we understand that machinery needs to run, and to have a piece of critical machinery offline is an absolute no-no.
We had a call from a customer in the stainless steel industry with a fault on a feeder control panel. The HMI had lost communications with the PLC, but the machine could still be operated and was still producing.
We took a trip to site to have a look at the panel, inside it was a Mitsubishi Electric FX1s PLC and a GOT1000 HMI. We couldn't ascertain which item was at fault so we agreed to take both items back to the workshop Friday afternoon once the site shut. This gave us a weekend window to carry out the repair.
We got straight to work and uploaded the HMI project using E Designer. We always upload PLC, HMI & drive files where possible as it ensures if the worst happened we could reprogram a new unit. The issue arose when we came to upload the PLC, we just couldn't establish communications. The realisation then hit that this was probably the underlying issue and the reason the HMI is offline. We reflowed the entire PLC and communications then sprang into life which was a relief as component suppliers had now closed.
We uploaded the PLC project, and purchased a new PLC as a spare, as this was now very old, and the microprocessor pins were covered in epoxy resin so it was not worth the risk to attempt any further work.
They are up and running now, with the new PLC on its way ready to program and drop back in.
All in a weekends work, with zero disturbance to production 👌
Do you have some critical PLC's and require repair? Or simply just a visit to back them up? If so drop us an email to see what we can offer.
