PLC Handshake

Example Handshake between PLC and PeakHMI

Note the Point is case sensitive e.g. ['Test',5007] is not the same as ['test',5007]

LogTrigger:=ReadValue(['Test',5007]); //PLC Input trigger                                    

if LogTrigger[0] then               //test

    begin                     

         value:=ODBCDatalogger('log');     //command to log and get a result

    if value then

         begin

         beep; //success

         WriteValue(['Test', 5007, 0]);  //reset trigger  

         end;                             

    end;