I developed a customized screen for online monitoring using easy xml in 828d system.

All <CONTROL> tags are updated online by using hotlink 

But IF tag and OP tag only updated at the time of form start.

Changes updated only after recall the form

is any program code for getting online updation of <OP> and <IF> tag in easy xml like "hotlink" for <CONTROL> tag.

eg.program

<let name="var1" type="INT" />

<ELSE>

</ELSE>

</init>

</form>

Try with the below command

<timer>

<if>

</if>

</timer>