Omron SYSMAC CX-Programmer 8.1, Руководство по эксплуатации

Страница: 84 / 154

Editing the SFC Chart Section 3-2
68
3-2-2 Editing (Inputting) a Transition
A transition condition can be defined by direct input of a Boolean variable or by an ST
expression.
Alternatively, a transition program can be utilized by specifying the name.
1 To input a transition condition, double-click the target transition, or right-click and
select Edit Transition Condition from the pop-up menu.
The default display (ST expression of “ FALSE ” ) changes to the editable state.
2 Input a Boolean variable (e.g. “a”), an ST expression (e.g. “a=b”), or a transition
program name.
Creating a Transition Program and Defining it as a Transition
A transition program can be created in advance, for use as a transition condition.
Transition programs can be coded in either ladder or ST.
1 Right-click the Transitions folder in the project workspace, and select Insert
Transition – Ladder or Structured Text from the pop-up menu.
A transition program (ladder or ST) will be registered under the Transitions folder.
2 Double-click a transition program item (ladder or ST) in the project workspace, or
right-click and select Open from the pop-up menu.