Festo CPX-CM-HPP Description page 60

3. Commissioning
3-24
Value Format
2 VK/NK [mm]
Tab. 3/13: Configuration parameter format
Two values are used when a controller with an address range
> 65536 is used. A conversion to hexadecimal values is
required, see example below:
245987 = 0x3C0E3
Byte 4,5 (FHPP): 0xC0E3
Byte 6,7 (FHPP): 0x0003
A conversion is not required when a higher-order fieldbus
master and double-values are used.
When a Profibus controller is used, it must be ensured that
the bytes are transmitted correctly. The bytes may need to be
rotated.
Significance
When a 16 bit controller is used,
e.g. CPX-FEC:
With MTR-DCI and SFC-xx, the position
value is first converted to [μm] or
[1/1000 °] and then divided into value
before comma (VK) and value after
comma (NK).
Position Position
value value
[μm] or [mm] or
[1/1000 °] [°]
245987 245.987
1234034 1234.034
–200065 –200.065
–345 –0.345
Festo CPX-CM-HPP-EN 2017-06b English
VK NK
245 987
1234 34
–200 65
0 –345