Trig Trigger Function Block - Honeywell HC900 Reference Manual

Function Blocks

TRIG Trigger Function Block

TRIG Trigger Function Block
Description
The TRIG label stands for Trigger or "One Shot" operation.
This block is part of the Logic and Fast Logic categories.
Function
Turns a Logic output (OUT) ON for one logic scan cycle, when a logic input (X) goes from OFF to ON.
If X = ON and previous value of X was OFF, then: OUT = ON (one scan)
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Otherwise, OUT = OFF
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Input
X = Trigger command signal
Output
OUT = triggered pulse
ATTENTION
The duration of the logic pulse output is one function block execution cycle. The duration of
the fast logic pulse output is 100 ms, or the fast logic cycle time.
Block properties
Double click on the function block to access the function block properties dialog box.
424 HC900 Hybrid Control Designer Function Block Reference Guide Revision 11
2/07