6. Function blocks6.1 Manufacturer function blocks6.1.5.4 MX - Data multiplexerGeneraleasyE4 base devices provide 32 data multiplexer functionblocks, MX01 through MX32. You can use a data multiplexer toselect a value from eight input values, I1 through I8. The func-tion block will then provide this value at output QV for furtherprocessing.Use input K (channel number) to specify which input will beconnected through to the output. Channel number 0 will con-nect input I1 to QV, while channel number 7 will connect inputI8 to QV.The MX data multiplexer can be used for the sequential controlof up eight to positioning sections that are transferred to the I1input of the PO Pulse output function block.Operating principleIf there is a signal state of 1 at the EN coil, the data value of the operand connected toinput Ix will be connected through to output QV. In this case, the value at function blockinput K will reference input Ix.You can change the channel number and accordingly connect a different input valuethrough to QV even when the EN input is set.If there is a signal state of "0" at the EN coil, output QV will be set to a signal state of "0".The function block will carry out a selection of one out of eight.The function block and its parametersFunction block inputsDescription Note(Bit)EN 1: Activates the function block. The checkbox for theFunction block release by EN isnecessaryparameter must first be enabled(DWord)K Channel numberReferences the function block input you want(I1 through I8).channel01Function block inputI1I2Integer value range: 0…7322 easyE4 11/18 MN050009 EN www.eaton.com
