Kistler-Morse KM STXPlus User Manual
Page 30
APPENDIX B: KISTLER-MORSE
®
PROTOCOL SERIAL COMMANDS
‘w1’ Command — Write Digital Delta (Scale Factor) Counts
This command is sent by the master to set the delta counts calibration value of an STXplus which
would only be in effect when in digital mode. This would be the A/D counts delta required in
order for a weight delta to occur. The range of this value can be ±8,388,607. For this example,
the master sets the digital delta counts for an STXplus at address 01 to14865.
Request from Master
Response from STXplus
>aaw1(-)dddddddssr
Ar
Format
>01w11486511r
Ar
Example
‘R2’ Command — Read Digital Delta (Scale Factor) Weight
This command is sent by the master to request the STXplus to send the delta weight
calibration value which would only be in effect when in digital mode. This would be the weight
change that would occur if an A/D counts change of digital delta counts occured. The range of
this value can be between 1 and 2,147,483,647. The default value is 9999. For this example,
the master requests the digital delta counts for an STXplus at address 01 assuming a format of
3(X.X), which returns 92347.5 engineering units and a checksum of 6C.
Request from Master
Response from STXplus
>aaR2ssr
A(-)fffffffssr
Format
>01R2E5r
A92347.56Cr
Example
‘w2’ Command — Write Digital Delta (Scale Factor) Weight
This command is sent by the master to set the delta weight calibration value of an STXplus which
would only be in effect when in digital mode. This would be the weight change that would occur
if an A/D counts change of digital delta counts occured. The range of this value can be between
1 and 2,147,483,647. For this example, the master sets the digital delta counts for an STXplus at
address 01 assuming a format of 2(X.) to14865.
Request from Master
Response from STXplus
>aaw2(-)fffffffssr
Ar
Format
>01w214865.40r
Ar
Example
‘R3’ Command — Read Digital Zero Counts
This command is sent by the master to request the STXplus to send the zero counts calibration
value which would only be in effect when in digital mode. This would be the A/D counts required
in order for a zero weight to occur. The range of this value can be ±8,388,607. The default value
is 0. 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
>aaR3ssr
A(-)dddddddssr
Format
>01R3E6r
A2347505r
Example
‘w3’ Command — Write Digital Zero Counts
This command is sent by the master to set the zero counts calibration value of an STXplus which
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