moncada Posted June 4, 2017 Report Share Posted June 4, 2017 When updating an application on a V350 the screen turns black at startup, it actually blinks very fast. I reinstalled the previous application and it works correctly again. Do you know any reason to find the solution? regards Link to comment Share on other sites More sharing options...
MVP 2014 Simon Posted June 5, 2017 MVP 2014 Report Share Posted June 5, 2017 Are you doing anything special with screen jumps, for example using ladder functions to jump between HMI screens? It sounds like the unit is flipping between HMI screens. Link to comment Share on other sites More sharing options...
liranaftali Posted June 5, 2017 Report Share Posted June 5, 2017 In addition I recommand you to check for any loops in the application , you can do it using the on-line mode. Link to comment Share on other sites More sharing options...
Isakovic Posted June 5, 2017 Report Share Posted June 5, 2017 It happened to me when I had "Set String Library" called in every scan. Easiest way to find error if you have your program divided into subroutines is to put MBs you don't use in front of "subroutine call" in main routine and call them one by one by setting MBs. 1 Link to comment Share on other sites More sharing options...
MVP 2023 Joe Tauser Posted June 12, 2017 MVP 2023 Report Share Posted June 12, 2017 Post your code. Joe T. Link to comment Share on other sites More sharing options...
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