Pavone Systems DAT 700 Technical Manual page 58

FIELDBUS COMMUNICATION PROTOCOLS (CONTINUED)
CODING TABLE COMMAND REGISTER / DATA REGISTER
Register value
0x0001 Semi-automatic zero
0x0002 Auto-tare
0x0003 Delete Peak
0x0004 Zero Calibration (**)
0x0005 Sample Weight Calibration (**)
0x0006 Analog Test
0x0007 Data storage in permanent memory
0x000A Weighing execution command
0x000B Switching command from gross to net weight
0x000C Switching command from net to gross weight
0x000D Zero signal acquisition (table calibration)
0x0015 Linearization point storage (**)
0x0055 Interruption of the linearization procedure (**)
0x3FFF Enabling Reading Output Data Area (*)
(*) This command must be sent whenever registers in the Fieldbus Output Data Area are changed, in order to make the changes
made effective in the instrument. Caution: when the instrument is turned on, the Output Data Area is completely reset to zero;
the Fieldbus master must read the parameter values from the Input Data Area and copy them to the relevant registers in the
Output Data Area, before sending the read enable command 0x3FFF in the Command Register. Otherwise, all parameters
handled in the Output Data Area would be reset to zero. Do not use in case of CANopen fieldbus.
(**) Function available only in case of FREE operation or in case of METRIC operation with calibration jumper enabled.
(***) The instrument is in configuration phase (flag TRUE during access to instrument SETUP menu or during connection with PC
software "Optimation").
FIELDBUS LINEARIZATION PROCEDURE
The linearization procedure replicates remotely the operations that can be performed from the keyboard as described in the
manual for dead weight calibration:
• Zero calibration: send command 0x0004; perform the operation with the scale unloaded but complete with the tare, at
stabilized weight. The gross weight acquired should be zeroed. It is possible to repeat this operation several times.
• Up to 5 linearization points on a positive scale are possible. Program the value of the actual weight loaded and stabilized
in the Data Register and send command 0x0015. It is possible to verify the successful operation by checking the acquired
gross weight; the instrument automatically goes to the next linearization point; if the weight is not stable, the operation is
not performed. You can repeat the linearization command (0x0015) up to 5 points.
• End the linearization procedure by sending the command 0x0055 after the last point is acquired. It is possible to store a
number of points less than 5.
• Send the command 0x0007 to save the calibration in permanent memory.
pag. 58
COMMAND REGISTER FUNCTION
(SERIAL TYPE = DAT1400)
DATA REGISTER FUNCTION
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Sample weight value in MSB and LSB
Value between 0 and 100 at intervals of 10
in LSB
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Sample weight value in MSB and LSB
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DAT700 Instrument User Manual