Nematron Pointe Controller - Manual (Page 407)

Pointe Controller User Guide Appendix C: Ladder Diagram Block Reference
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C.6.3 Limit value (LIM)
When used in a Ladder Diagram, the LIM block limits an input to a specified
range.
Select the tool (from the Selection 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 Value (IN) is
compared to both the Minimum and Maximum Values (MIN and MAX) and the
limit is placed in the Output Value (OUT). When IN is less than MIN, MIN is
placed in OUT. When IN is greater than MAX, MAX is placed in OUT. Otherwise,
IN is placed directly in 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.
Configuration Reference
The parameters of this block are described in the following table:
Param Name Config Var Type Description
EN Enable no - The state of the rung (off/on)
received from the left.
ENO Enable
Out no - The state of the rung (off/on)
passed to the right.