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Function Blocks
PI Pulse Input
Revision 11
HC900 Hybrid Control Designer Function Block Reference Guide
265
2/07
Properties Group
Parameter
Index #
Description
Value or Selection
EU per Minute, or
EU per Hour
Preset Use
Remote
4 Uses RPRES input
pin in EU.
Click to select.
Use
Local
4
Uses local preset
count in EU.
Click to select. Enter
value. Enter 0 for no alarm
indication on PREI (there
are no limits).
Preset Output
Action
Latched Until
Reset
2
The PFQ module output
transistor latches ON until
reset. PREI latches ON
until PFQ module
acknowledges the reset.
Momentary
2
The PFQ module output
transistor turns ON for 1
second. PREI turns on for
approx. 1 second. Counter
is reset to zero and count
continues.
Example
Figure 69
PI function block example