User guide

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4.3.3. Read / write parameter spindle pitch (scaling factor), command „c“ (63h)
This command is utilized to read or write the scaling factor of the spindle pitch within the range from
0,0000001...9,9999999. The decimal point is not transmitted.
How to calculate the scaling factor:
Resolution per turn: 23,04 mm
Spindle pitch: 4,00 mm
Spindle pitch 4,00
Scaling factor = ───────────────── = ───── = 0,1736111
Resolution per turn 23,04
Example 1: Read scaling factor (scaling factor = 1,000000)
SOH Adr Cmd EOT CRC
Transmission
01h 20h 63h 04h 4Ah
SOH Adr Cmd Scaling factor = 1,0000000 EOT CRC
Response
01h 20h 63h
31h 30h 30h 30h 30h 30h 30h 30h
04h 4B
Example 2: Write scaling factor (scaling factor = 0,1736111)
SOH Adr Cmd Scaling factor = 0,1736111 EOT CRC
Transmission
01h 20h 63h
30h 31h 37h 33h 36h 31h 31h 31h
04h 05h
SOH Adr Cmd Scaling factor = 0,1736111 EOT CRC
Response
01h 20h 63h
30h 31h 37h 33h 36h 31h 31h 31h
04h 05h
4.3.4. Read / write parameter measuring unit, command „i“ (69h)
The command is to read or write the measuring unit in mm or inches.
Data = 0 (30h) = mm
Data = 1 (31h) = inch
Example 1: Read parameter (setting = mm)
SOH Adr Cmd EOT CRC
Transmission
01h 20h 69h 04h 5E
SOH Adr Cmd Data EOT CRC
Response
01h 20h 69h
30h
04h D0h
Example 2: Change measuring unit to inches
SOH Adr Cmd Data EOT CRC
Transmission
01h 20h 69h
31h
04h D2
SOH Adr Cmd Data EOT CRC
Response
01h 20h 69h
31h
04h D2
Example 3: Write mm as measuring unit into all SPAs by broadcast command (identifier/Adr=99)
SOH Adr Cmd Data EOT CRC
Transmission
01h 83h 69h
30h
04h CDh
Response Not confirmed
Important: The parameter is programmed in mm and converted into inches by the SPA when displaying the
position values.