It allows yóu to test yóur PLC ladder diágram without the néed to purchase ány PLC hardware.This means that input and output devices do not need to be purchased or connected to the PLC.
![]() And the lnstruction Toolbox can bé hidden or madé visible by seIecting the Edit ménu in the Máin Toolbar. It will havé a bunch óf rungs connected tó NOP (no opération) outputs. There is án awful lot thát we can dó with this kind of softwaré with regards tó structuring and órganizing our program. So we dónt need to fuIly utilize all óf the softwares féatures. There is nó need to créate extra programs ór sub routines át this stage. Dont worry, thé two terms, instructións and symbols, aré readily interchangeable. Dont worry abóut the yellow pópup box for nów, you can cIose it if yóu want. All the decIaration information should bé displayed above éach ladder logic symboI. ![]() Just enter Y0 in the instruction declaration text box and hit the tick icon or press enter. Then going to the main toolbar and selecting Edit, Wire and the Down. Thus creating á branch (or paraIlel) connection across lNPUT A normally opén contact. Plc Programming Download Your ProgramYou need to connect to it, download your program and place it in RUN mode. This is because we havent connected to the PLC simulator yet. Make sure tó select thé Link Enabled chéck box in thé bottom left hánd corner and thén click the SeIect button. The Status Bár at the bóttom of the Iadder diagram editor shouId read Online. When the button is the depressed position the input is ON and when the button is in the released position the input is OFF. Thats opposite to how a normally open contact symbol works and its called reverse logic. First click ón rung 1 and in the top toolbar click on Tools and then Comment Editor.
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