AutomationTechBrian
Lifetime Supporting Member
We have been talking about upgrading a customer's machine PLC and HMI... It might happen sometime next Fall. That said, about a month ago, his SLC 5/05 crashed, and I installed his back-up CPU. Now, the customer has asked us to find him a back-up CPU in case this one fails before the upgrade. I remember reading info on this board about being careful about buying SLCs on Ebay. I can't find the discussion, and I need to pass some guidance to to our buyer. He typically avoids anything being sold from China, but I remember hearing the problem extends beyond that advice. Here is a picture of the current CPU. Is there any specific info I should give to him about sourcing a 1747-L552?