Nematron Pointe Controller - Manual (Page 421)

Pointe Controller User Guide Appendix C: Ladder Diagram Block Reference
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C.7.9 Delete sub-string (DEL)
When used in a Ladder Diagram, the DEL block deletes a sub-string of specified
length from the middle of a string (variable or literal) and sends the resulting
string to an 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: a sub-string of specified
Length (LEN) is deleted from the Input String (IN), starting at the specified
Position (POS). The resulting string is placed in the Output String (OUT).
For example:
IN: ‘Hello world. This is PointeControl.’
POS: 9
LEN: 8
OUT: ‘Hello wos is PointeControl.’
NOTE: If there are fewer than POS characters in IN, then IN is copied without
changes to OUT.
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.