SATEC RDM172 Manual - Manual (Page 78)

Chapter 4 PAS Application Software General Meter Setup
78 Series PM172 Powermeters
The meter provides 16 control setpoints with programmable operate and
release delays. Each setpoint evaluates a logical expression with up to four
arguments using OR/AND logic. Whenever an expression is evaluated as
“true”, the setpoint performs up to four concurrent actions that can send a
command to the output relays, increment or decrement a counter, or trigger a
recorder.
The logical controller provides very fast response to events. The scan time
for all setpoints is 1 cycle time (16.6 ms at 60Hz and 20 ms at 50/400 Hz).
To program the setpoints, select General Setup from the Meter Setup menu,
and then click on the Control/Alarm Setpoints tab.
The available setpoint options are described in the following table.
Option Range Description
Triggers
OR/AND OR, AND The logical operator for the trigger
Trigger
parameter See Appendix C The trigger parameter that is used as an argument in
the logical expression
Operate limit The threshold (in primary units) at which the
conditional expression would be evaluated to true.
Not applicable for digital triggers.
Release limit The threshold (in primary units) at which the
conditional expression would be evaluated to false.
Defines the hysteresis for analog triggers. Not
applicable for digital triggers.
Actions
Action See Appendix C The action performed when the setpoint expression is
evaluated to true (the setpoint is in operated state)
Delays
Operate delay 0.1-999.9 sec The time delay before operation when the operate
conditions are fulfilled
Release delay 0.1-999.9 sec The time delay before release when the release
conditions are fulfilled