Data saving, Transmitting and reading negative values – Baumer N 153 User Manual

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N 153

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3.6. Data saving

Specific parameters are saved in EEPROM (1.000.000 writing cycles). Data saving is via interface upon every
parameter transmission to SPA.
Important:
There should not be a cyclic transmission of these parameters to SPA but only if necessary, for example in
case of parameter alteration. The relevant parameters saved in EEPROM are listed in the charts in chapter
“Comand explanations” or “Overview on commands”.

3.7. Transmitting and reading negative values

The minus sign (2DHex) is always transmitted by digit 6 of the data field.
Example: Taking for granted a negative target of –1.5 and a programmed resolution of 1/10, the transmitted
value is –00015.

3.8. Transmitting and reading position values (decimal point)

Position values as for example target (command „S“), offset (command „U“) or end positions (command “g”) are
generally transmitted and read without decimal point. Visualization in the display corresponds to the format in
the data field of the interface command.
Thus, the transmission format depends on the resolution (see command „a“).

Example 1: resolution = 1/100; target = 278.50; actual value = 1.00 Display

SOH Adr Cmd Profile no=17

Target = 278.50

EOT CRC

01h 20h 53h 31h

37h 30h 32h 37h 38h 35h 30h

04h

29h

Example 2: resolution = 1/10; target = 278.5; actual value = 1.0

SOH Adr Cmd Profile no=17

Target = 278.5

EOT CRC

01h 20h 53h 31h

37h 30h 30h 32h 37h 38h 35h

04h

29h

2 7 8.5 0

1.0 0

2 7 8.5

1.0

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