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. 3.7.5.5
Preferences - Logic Common
The following example shows the operand set up procedure for a
TON instruction (On Delay Timer). A symbol variable
"SodaInjectionTime" 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 "SodaInjectionTime" in the text box and press
[Enter] to check.
A message appears, "Register 'SodaInjectionTime' 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)].
to display those
variables. You can select and specify the displayed symbol
variables and system variables.
