Thomas Kelly Posted October 29, 2020 Report Share Posted October 29, 2020 Every time I try to start Visilogic version 9.8.91 . It displays runtime error 91. Object variable or With block variable not set. When I push OK. The program disappears. This has prevented me from being able to load programs to my Vision 130 PLC. Does anyone know how to get out of this loop? Quote Link to comment Share on other sites More sharing options...
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