Gerardo Serafini Posted January 13, 2020 Report Share Posted January 13, 2020 I'm doing a datalogger with a PLC Vision 130. This has to perform the following tasks: 1- Survey by Modbus to slaves 2- Save every 1 second the intoaccount to a table 3- Once the table is filled, pass the data to SD A full time card as I do to delete the first record of it to generate a cyclic deleted ??. Quote Link to comment Share on other sites More sharing options...
MVP 2023 Ausman Posted January 13, 2020 MVP 2023 Report Share Posted January 13, 2020 Have a look at this post and it might give you ideas. Not exactly what you want, but near enough. Keep in mind that if you are communicating with a few slaves by modbus, you may not be able to do an accurate save every second, due to the inherent delays in the comms. cheers, Aus Quote Link to comment Share on other sites More sharing options...
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