Juan Castrillon Posted February 16, 2017 Report Share Posted February 16, 2017 Hi! Im currently working on a project with a Vision 130 OPLC. In my application, the people interacting with the HMI, have to press the keys many times, specifically the arrow keys and the ENTER key. I'm worried about the lifespan of the keypad and i dont want it to damage. As a solution for this, I've tought of having external buttons connected to the INPUT port of the PLC, and using them (in software) to act as the keys in the HMI keyboard (see attached image). However, I'm using a List of Text as Keypad Variable Entry, and whenever i go into keypad variable entry mode (blinking), the external buttons dont work as the keys anymore. I want to know if i'm doing anything wrong or if there is a better way to override the keypad keys. Thanks In Advance Juan Quote Link to comment Share on other sites More sharing options...
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