46
THRESHOLD - The load generated in channel 0 must exceed this value before
the stroke is recognized as valid. If this is 0, the meter uses the
probe to trigger on.
DELAY TIME - Wait in seconds from triggering point (threshold or probe)
before the peak is read.
BATCH SETPOINT, BATCH COUNT, STROKE COUNTER - 8 digit
numbers stored as two 4 digit values.
THUMBWHEEL SWITCHES -Four 4 digit (0-9) values (total of 16)
Digit 1 = Setting of SW11, 1-4 (main PC)
Digit 2 = Setting of SW11, 5-8 (main PC)
(This is the meter address)
Digit 3-16 = 14 Thumbwheels on door in order in
which they appear
TIME SINCE LAST STROKE - 8 digits indicating down time in days, hours, and
minutes.
I/O STATUS - Total of 4 digits, each digit represents 4 bits
First two digits represent status of inputs
Next two digits represent status of outputs
1=device OFF 0=device ON
ALL OTHER NUMBERS ARE 0000-9999 THE LOAD USES THE
DECIMAL POINT GIVEN IN THE MODE INFORMATION.
f. CHECKSUM CALCULATION
The checksum is an 8 bit modulo 256 sum of every ASCII byte in the record
starting with and including the 1st digit meter address, and ending with and
including the start of checksum indicator "(". This modulo 256 sum is then given a
2 digit HEX representation and changed to ASCII for transmission. The
checksum is always calculated and sent by the N269 with data transmissions.
The incoming checksum is not checked unless dip switch SW11-2 is in the down
position. Thus it is recommended that switch SW11-2 is left down unless the
interface is being tested.
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