D.4
SEL-734 Meter Instruction Manual Date Code 20090730
Setting SELOGIC Control Equations
Processing Order and Processing Interval
SELOGIC control equation settings that are set directly to 1 (logical 1) or 0
(logical 0) also have to be included in these limitations with each such setting
counted as one Meter Word bit.
Processing Order and Processing Interval
The meter elements and logic (and corresponding SELOGIC control equation
settings and resultant Meter Word bits) are processed in the order shown in
Table D.3 (top to bottom). They are processed every processing interval
(25 ms), and the Meter Word bit states (logical 1 or logical 0) are updated with
each interval. Once a Meter Word bit is asserted, it retains the state (logical 1
or logical 0) until it is updated again in the next processing interval.
Table D.3 Processing Order of Meter Elements and Logic (Top to Bottom)
Meter Elements and Logic
Processing Order
for SEL
OGIC Control
Equations and
Meter Word Bits
Instruction
Manual Reference
Analog and digital data acquisition
Expansion Slot #2, I/O Board
IN101–IN102
IN401–IN404
Section 8,
Section 9, and
Section 10
Remote Control Switches RB01–RB16
Section 8
Voltage Sag/Swell/Interruption
Elements
SAGxx, SWxx,
INTxx, where xx = A,
B, C, AB, BC, CA, or 3P
Section 6
SELOGIC Control
Equation Variables/Timers
SV01–SV16,
SV01T–SV16T
Section 8
Math SELOGIC Variables MV01–MV16
Section 8
Fault detector for Target Logic and
Metering
FAULT
Section 4 and
Section 9
Output Contact Equations Expansion
Slot #2, I/O Board
OUT101–OUT103
OUT401–OUT404
Section 8
Latch Bits Set/Reset Equations SET01–SET16,
RST01–RST16
Section 8
MIRRORED BITS
®
Transmit
Equations
TMB1A–TMB8A,
TMB1B–TMB8B
Appendix G
Event Report Trigger ER1–ER3
Section 6
Display Points DP01–DP16
Section 8
SELOGIC Counter Equations SC01–SC16
Section 8
Software Alarm SALARM
Section 8
Courtesy of NationalSwitchgear.com
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