Before we commence the circuit creation, let us define the I/Os to be used for this program. The following I/Os are required:

Inputs : Start, Stop, Manual, Step Outputs : Out1, Out2,.... Out8 Relays : Run Timers : Duration Sequencer (counter) : Seq1 Click on the button located on right hand side of the upper status bar to open up the I/O label editing Window. You can also achieve the same with the <F2> function key. Scroll to the "Inputs" window by using the left/right cursor keys or by clicking on the red color left/right arrow buttons or simply select it from the choice box between the left/right arrow buttons. Move the deep blue color highlight bar to Input #1 position by clicking on it. Click again to open up a text field for entering the name for Input #1.

4. Press <Enter> key again and the highlight bar will be moved to Input #2.
   
   
   
5. Without using the mouse button, simply start typing the name "Stop" at Input #2. The text field will be automatically opened up at Input #2 for entry. Press <Enter> after typing in the name for "Stop" input.
   
   
6. Complete entry of the other two input label names "Manual" and "Step" as above. Note that i-TRiLOGI Version 6.2 and up allows I/O label names of up to 16 characters. However, if you wish to keep compatibility with Version 5.x to 6.1x, you should use no more than 10 characters to define the I/O names. Also, white spaces between names are not acceptable and will be automatically converted to the underscore character ( '_' ). e.g. If you enter the name: "F series PLC" for an I/O, it will be accepted as "F_series_P".
   
   
7. After entering label names for Inputs #1 to #4, move to the "Output" table by pressing the right cursor key or by clicking on the right arrow button. Enter all the output and relay label names in their respective I/O tables. We will discuss the "Timer" table in the next step.
   

IMPORTANT

1. You can shift the Items in the I/O table up or down or insert a new label between two adjacent, pre-defined labels. Simply press the <Ins> key or Right-Click the mouse button to pop up the "Shift I/O" menu,  which allows you to shift the selected I/O. However, please note that if you shift the I/O down, the last entry in the I/O table (e.g. Input #256) will be lost.

2. In i-Trilogi 6.2 and up, shifting of Custom Function Label names will now shift the function content along with the label name. (In previous versions of i-Trilogi, shifting of the I/O label would not shift the function content, therefore making it untenable to use I/O label shift to reorganize custom functions. Warnings are provided if such an action were to result in overwriting of an existing custom function.

3. i-TRiLOGI Version 6.2 and up allows I/O label names of up to 16 characters. However, if you wish to keep compatibility with Version 5.x to 6.1x, you should use no more than 10 characters to define the I/O names.

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