Tag identifier Meaning
FOR For loop
for (initialization; test; continuation) instruction(s)
Syntax:
<FOR>
<INIT>…</INIT>
<CONDITION>…</CONDITION>
<INCREMENT>…</INCREMENT>
Instructions
…
</FOR>
The For loop is executed as follows:
1. Evaluation of the expression initialization (INIT).
2. Evaluation of the expression test (CONDITION) as a Boolean expression.
If the value is false, the For loop is exited.
3. Execution of the following instructions.
4. Evaluation of the expression continuation (INCREMENT).
5. Continue with 2.
All the variables within the INIT, CONDITION, and INCREMENT branches are declared
and initialized outside the FOR loop.
Example:
<LET name = "count">0</LET>
<FOR>
<INIT>
<OP> count = 0</OP>
</INIT>
<CONDITION> count <= 7 </CONDITION>
<INCREMENT>
<OP> count = count + 1 </OP>
</INCREMENT>
<OP> "plc/qb10" = 1+ count </OP>
</FOR>
FORM The tag contains the description of a user dialog. The description is provided in Chapter
"Generating softkey menus and dialog forms (Page 49)."
HMI_RESET The tag triggers an HMI restart.
Interpretation is stopped after this instruction.
Generating user dialogs
1.7 XML identifier
Easy XML
Programming Manual, 12/2017, 6FC5397-1DP40-6BA1 27
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