Laurel Electronics LAUREATE SERIES COUNTER_TIMER User Manual
Page 27

Relay #3 energizes and the cycle repeats.
As an option, the cycle can be reset from an external signal FUNCTION RESET. The
GATETIME is not used and Relay #1 remains de-energized until the FUNCTION RESET
external input is grounded for a minimum of 3.33 mS. Sometime during that period, the
Batch Total is reset and Relay #1 is energized.
The Batch Total is displayed as Item #1 and may be configured to count up from 0 to
the preset value, or to count down from the preset value to 0. The preset value is placed
in OFFST1 and the Batch Total is the total input pulses with SCALE1 and DECPT1
applied. In the BATCH mode, SCALE1 is always set to a positive value whether counting
up or counting down.
The Grand Total is kept as Item #2. SCALE1 and DECPT1 also apply to the Grand Total
except the absolute value is used so that the Grand Total always increases from an initial
value of zero when the counter is initially Reset. It is calculated as the sum of the
previous Batch Totals + the current Batch Total. The Grand Total can overflow to the
exponential format.
As an alternative, Item #2 can be configured to be the Number of Batches instead of the
Grand Total. If it is, SCALE1 does not apply to it and the Decimal Point is always 1.
Item #3 is the Rate calculated with a fixed 20 mS (or 1 cycle min) gatetime. SCALE2,
OFFSET2 and DECPT2 apply to the Rate.
Relay #1 is activated by SETPT#1 and Relay #2 is activated by SETPT#2, and each may
be configured for either
Item#1 - Batch Total (Pre-warn),
Item #2 - Grand Total or # Batches, or
Item #3 - Rate.
It is possible to configure both for the same Item. An example would be two Pre-warns.
RATE A , TOTAL A displays total of channel A as item 2, and rate as item 1. Total is
a sample time total determined the rate multiplied by the time between conversions. This
input is used if square root or custom curve is selected. Decimal point2, scale2 and
offset2 apply to total and is calculated from the displayed valued of rate and decimal
point1, scale1 and offset1 apply to rate. Total may count down from an offset value
by entering a negative scale factor. Use Rate A, Total B to display the rate and total of
a single linear input by tying channel A and B inputs together.
RATE A AND TOTAL B displays total of channel B as item 2, and rate of channel A as
item 1. Decimal point2, scale2 and offset2 apply to total and decimal point1, scale1 and
offset1 apply to rate. Total may count down from an offset value by entering a negative
scale factor. Rate and total of a single input may be displayed by tying channel A and
B inputs together
RATE A+B is the same as Rate A, Rate B except that Rate A is displayed as item 2, Rate
B is displayed as item 3 and the sum of A and B is displayed as item 1. Decimal point
1 applies to both A and B and decimal point 2 applies to the sum of A and B. The
resolution of the sum is determined by setting the multiplier (Resolution) from .00001 to
100000.
RATE A-B is the same as Rate A+B except that B is subtracted from A
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