Baumer N 142 - Manual (Page 7)

N 142
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3.4. Broadcast commands
Some specific commands are designated so-called broadcast commands. As soon as the master broadcasts a
command to identifier 99, the command is addressed to all N 142 in the network. Every individual spindle
position display will accomplish the respective command but will not respond any confirmation to master.
3.5. Data saving
Specific parameters are saved in EEPROM (1.000.000 writing cycles). Data saving is via interface upon every
parameter transmission to the SPA.
Important:
These parameters should not be transmitted to SPA cyclic but only if necessary, for example in case of any
parameter alteration. The relevant parameters that are saved in EEPROM are listed in the charts in chapter
“Command explanations” or “Overview on commands”.
3.6. 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.
3.7. 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. The visualization on the display corresponds to the format
in the data field of the interface command.
Example 1: target = 278.50; actual value = 1.00 Display
SOH Adr Cmd Profil-Nr=17 Sollwert = 278,50 EOT CRC
01h 20h 53h 31h 37h 30h 32h 37h 38h 35h 30h 04h 29h
2 7 8.5 0
1.0 0