Bosche WTS - Page 39

User manual WTS Ver.1.16
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incorrect reception: &&aa?\ckckCR
If the instrument is not in gross weight displaying condition, the response is: &aa#CR
where:
xxxxxx = 6 characters for the required weight value;
t = weight identification code (116 ASCII).
Example: Weight zero setting for instrument with address 2:
For the calibration, make sure that the scale is empty and the instrument measures a
corresponding mV signal.
query: $02z78(Cr) response: &02000000t\76(Cr)
In case of correct weight zero setting the read value (response) must be 0 (in the string
“000000”).
The zero values are stored to the EEPROM memory, please note that
the writing number allowed is limited (about 100000). If it is necessary
to reset the weight quite often, it is recommended to perform it by PC
or PLC program, keeping in mind the weight deviation respect to the
zero instrument.
9. REAL CALIBRATION (WITH SAMPLE WEIGHTS)
After having performed the TARE WEIGHT ZERO SETTING, this function allows correct
calibration to be done using sample weights of known value and, if necessary, any
deviations of the indicated value from the correct value to be corrected.
Load onto the weighing system a sample weight, which must be at least 50% of the Full
Scale otherwise make sure that the instrument measures a corresponding mV signal
The PC sends the following ASCII string containing the calibration command:
$aasxxxxxxckckCR
where: s = calibration command (115 ASCII)
xxxxxx = 6 characters for sample weight value (negative values are not allowed).
Possible instrument responses:
- correct reception: &aaxxxxxxt\ckckCR
- incorrect reception or full scale equal to zero: &&aa?\ckckCR
where:
t = gross weight identification code (116 ASCII).
xxxxxx = 6 characters to indicate the current weight value.
In case of correct calibration, the read value must be equal to sample weight.
Example: Calibration for instrument with address 1 and sample weight of 20000 kg:
query: $01s02000070(Cr) response: &01020000t\77(Cr)
In case of correct calibration the read value has to be “020000”.