Do-more T1H Series PLC Hardware User Manual, 1st Edition, Rev. C
1–24
Chapter 1: Getting Started
Step 7: Create a Ladder Logic Program
To create a ladder logic program, you must first place the software in Edit Mode. Click the
Edit Mode button found in the Project Toolbar or Ladder Palette Bar or use the shortcut
Ctrl+E.
When in Edit Mode, all of the Ladder Palette Bar’s options will become active and the cursor
in Ladder View will fill in blue. Now, you are ready to begin entering the example ladder
logic below.
Rung #1
Place the box cursor in the NOP position on Rung #1.
If the Instruction Palette is not open, then
click Instructions from the Ladder Palette
Bar and select the TMR (Timer) or type a
“T” and select TMR from the drop down menu, then
press Enter. Once TMR is selected, a Timer dialog
box appears.
1. Set the Timer Struct to T1.
2. Enter 03 into the Preset
Constant Value for the
seconds (s) preset.
3. Click the checkmark in the
upper left corner to accept.
After clicking the checkmark,
Rung #1 should show the
T1 timer (TMR) instruction
with a preset of 3.000 seconds. A user variable can be
assigned to the preset value if needed.
