Kistler-Morse KM STXPlus User Manual

Page 34

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APPENDIX B: KISTLER-MORSE

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PROTOCOL SERIAL COMMANDS

Request from Master

Response from STXplus

>aaw8(-)fffffffssr

Ar

Format

>01w814865.46r

Ar

Example

‘RB’ Command — Read Analog Delta Counts
This command is sent by the master to request the STXplus to send the delta counts calibration
value which is used to calibrate the current output engine. This would be the change in either
A/D counts if operating in analog mode or the change in weight units if operating in digital mode
(refer to commands “n1”/”m1” for analog/digital mode) required in order for the current output to
change over the entire range that the current output is set to (refer to commands “n2”/”m2” for
current output range). The range of this value can be between 1 and 8,388,607 in analog mode
and between 1 and 2,147,483,647 in digital mode. The default value is 8,388,607. For this
example, the master requests the analog delta counts for an STXplus at address 01 assumed to
be in analog mode which returns 23475 counts and a checksum of F5.

Request from Master

Response from STXplus

>aaRBssr

A(-)fffffffssr Format

>01RBF5r

A2347505r Example

‘wB’ Command — Write Analog Delta Counts
This command is sent by the master to set the delta counts calibration value of an STXplus which
is used to calibrate the current output engine. This would be the change in either A/D counts if
operating in analog mode or the change in weight units if operating in digital mode (refer to
commands “n1”/”m1” for analog/digital mode) required in order for the current output to change
over the entire range that the current output is set to (refer to commands “n2”/”m2” for current
output range). The result of this command will be to re-calculate/calibrate the current output
high weight value (commands “R9/w9”) based on the sum of current output low weight and
analog delta counts. The range of this value can be between 1 and 8,388,607 in analog mode
and between 1 and 2,147,483,647 in digital mode. For this example, the master sets the analog
delta counts for an STXplus at address 01 operating in digital mode assuming a format of 2(X.)
to14865.

Request from Master

Response from STXplus

>aawB(-)fffffffssr

Ar

Format

>01wB14865.50r

Ar

Example

‘RC’ Command — Read Analog Zero Counts
This command is sent by the master to request the STXplus to send the zero counts
calibration value which is used to calibrate the current output engine. This would be the
minimum A/D counts if operating in analog mode or the minimum weight units if operating in
digital mode (refer to commands “n1”/”m1” for analog/digital mode) where the lowest portion of
the current output range would begin to change towards the highest portion of the current output
range (refer to commands “n2”/”m2” for current output range). The range of this value can be
±8,388,607 in analog mode and ±2,147,483,647 in digital mode. The default value is 0. For this
example, the master requests the analog zero counts for an STXplus at address 01 assumed to
be in analog mode which returns 23475 counts and a checksum of F5.

B-15

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