For details on the instructions, refer to the relevant instructions.
Chapter 31 Logic Instruction List
In the [Preferences] window, select [Ladder]. Select the [Set up operands when adding instructions] check box. The operand input box will appear when the instruction is inserted.5.18.6.5 Preferences - Logic Common
You can change the operand details using the property window.29.13.5 Using Reference Features to Search Logic Programs
Advanced instructions have more than one operand.
The following example shows the operand set up procedure for a TON instruction (On Delay Timer). A symbol variable "soda injection time" is allocated to an operand and a setting time [Preset Time (PT)] for the timer output to turn on is allocated to another operand.
Double-click the TON instruction (On Delay Timer) operand. A text box is displayed for entering the operand.
You can display the operand input box in either of the following ways.
Right-click the operand and then click [Edit (E)].
Select the operand and press ENTER.
Input "soda injection time" in the text box and press [Enter] to check.
A message appears, "Register 'soda injection time' as timer variable."
Press the [Enter] key. The [Confirm Symbol Registration] dialog box appears.
Click [Yes (Y)].
The symbol variable data type required by the instruction will be set up.
In this case, a "timer variable" type is allocated.
If symbol variables that can be allocated were previously registered, or if the system variables can be allocated, click 
to display those variables. You can select and specify the displayed symbol variables and system variables.
The default value "0" is input in the setting value [Preset Time (PT)]. Double-click the instruction to change the [Preset Time (PT)].
Right-click and then click [Instruction Settings]. The setting dialog box appears.
If no symbol variable is input in Procedure 1, the setting dialog box will not appear.
For some instructions, the setting dialog box might not appear.
The setting dialog box differs depending on the instruction.
The setting dialog box for the TON instruction (On Delay Timer) will be displayed. Change the settings as necessary and click [OK (O)].
