Instruction Manual

Pointe Controller User Guide Appendix C: Ladder Diagram Block Reference
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C.7.11 Find sub-string (FIND)
When used in a Ladder Diagram, the FIND block finds the first occurance, if any,
of a sub-string within a given string. The position of the sub-string is sent to
output.
Select the
tool (from the String Blocks toolbar) and click on a ladder rung to
insert the following block:
Once the block is inserted, you can double-click on it to configure it.
Functional Description
This block always passes the Enable input state (EN) through to the Enable Out
output state (ENO) without change; when EN becomes on, ENO is turned on, and
when EN becomes off, ENO is turned off.
When EN becomes on, the block function is executed: the Input String 1 (IN1) is
searched for the first occurance, if any, of the Input String 2 (IN2). If IN2 is found
within IN1, then the starting position is placed in the Output Value (OUT). If IN2
is not found, then 0 is placed in OUT.
For example:
IN1: ‘This is OpenControl.’
IN2: ‘is’
OUT: 3
The block function is executed every time the ladder is scanned, so long as EN
remains on. If EN becomes off, then OUT remains at its last calculated value until
EN becomes on and the block function is executed again.