bgics Posted May 22, 2019 Report Share Posted May 22, 2019 I'm new to Unitronics programming. Using VisiLogic. Concerning memory integers. I have not tested this yet, but am wondering if I use a memory integer for an operator input setpoint, will that value be stored in the event they power down the PLC and turn it back on? I'm not talking about Power Up value, just a value that can be changed from time to time by an operator. Will the last stored value of the memory integer be retained upon a PLC power cycle? Quote Link to comment Share on other sites More sharing options...
MVP 2022 Flex727 Posted May 22, 2019 MVP 2022 Report Share Posted May 22, 2019 When you create the operand there is a setting to retain its value. Quote Link to comment Share on other sites More sharing options...
MVP 2022 Flex727 Posted May 22, 2019 MVP 2022 Report Share Posted May 22, 2019 Oops, for some reason I thought I was in the UniLogic forum. With VisiLogic, all operands are retained through power cycle or reset if there is a working battery in place. Quote Link to comment Share on other sites More sharing options...
Bisku Posted May 25, 2019 Report Share Posted May 25, 2019 All M-operands (MB, MI, ML, DW) are retained. X-Operands (XB, XI, XL, XDW) are kept in memory. Therefor they are processed faster, but they are not backed-up by battery. Quote Link to comment Share on other sites More sharing options...
MVP 2022 Flex727 Posted May 27, 2019 MVP 2022 Report Share Posted May 27, 2019 On 5/25/2019 at 1:27 AM, Bisku said: All M-operands (MB, MI, ML, DW) are retained. X-Operands (XB, XI, XL, XDW) are kept in memory. Therefor they are processed faster, but they are not backed-up by battery. This is correct. Thanks for expanding. Quote Link to comment Share on other sites More sharing options...
bgics Posted May 31, 2019 Author Report Share Posted May 31, 2019 Great, thank you all for the information. Very helpful! Quote Link to comment Share on other sites More sharing options...
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