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