Kistler-Morse KM STXPlus - Manual (Page 33)

APPENDIX B: KISTLER-MORSE ® PROTOCOL SERIAL COMMANDS
For this example, the master requests the digital zero counts for an STXplus at address 01 which
returns 23475 counts and a checksum of 05.
Request from Master Response from STXplus
>aaR7ssr A(-)dddddddssr Format
>01R7EAr A2347505r Example
‘w7’ Command — Write Digital Low Span Counts
This command is sent by the master to set the low span counts calibration value of an STXplus
which would only be in effect when in digital mode. This would be the A/D counts required in
order for a low span weight to occur. The result of this command if in 2 point calibration mode or
following a “w5”, “w6” or “H” command in slope-intercept calibration mode will be a
re-calculation/calibration of the following 2 values. First, the digital delta counts value based on
the difference between the digital high span counts value and the digital low span counts value.
Secondly, the digital zero counts value based on the value in counts would occur when 0 weight
is displayed. The range of this value can be ±8,388,607. For this example, the master sets the
digital low span counts for an STXplus at address 01 to14865.
Request from Master Response from STXplus
>aaw7(-)dddddddssr Ar Format
>01w71486517r Ar Example
‘R8’ Command — Read Digital Low Span Weight
This command is sent by the master to request the STXplus to send the low span weight
calibration value which would only be in effect when in digital mode. This would be the weight
that is paired with the digital high span counts that would serve as one point on the calibration
slope line if in 2 point calibration mode. The range of this value can be ±2,147,483,647. The
default value is 0. For this example, the master requests the digital low span weight for an
STXplus at address 01 assuming a format of 3(X.X), which returns 347.5 engineering units and a
checksum of EB.
Request from Master Response from STXplus
>aaR8ssr A(-)fffffffssr Format
>01R8EBr A347.501r Example
‘w8’ Command — Write Digital Low Span Weight
This command is sent by the master to set the zero weight calibration value of an STXplus which
would only be in effect when in digital mode. This would be the weight that is displayed when
low span A/D counts is measured. The result of this command if in 2-point calibration mode or
following a “w5”, “w6” or “H” command in slope-intercept calibration mode will be a
recalculation/calibration of the following value. The digital delta weight value based on the
difference between the digital high span weight value and the digital low span weight value. The
range of this value can be ±2,147,483,647. For this example, the master sets the digital zero
weight for an STXplus at address 01 assuming a format of 2(X.) to14865.
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