UBI EasyCoder 501, Техническое руководство

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UBI EasyCoder 501 – Technical Manual
• Baudrate:
The baudrate is the transmission speed in bits per second. The
following baudrates can be selected:
300
600
1200
2,400
4,800
9,600 Max. recommended baudrate for 20 mA current loop
19,200
38,400
Only available on "uart2:" and "uart3:".
If communication problems occur, try a lower baudrate.
• Parity:
The parity decides how the software will check for transmission
errors. There are five options:
None
Even
Odd
Mark
Space
• Character Length:
The character length specifies the number of bits in a character.
For most purposes 7 bits will be sufficient, but if special characters
or characters specific for other languages are to be used, 8 bits are
recommended. Refer to the UBI Fingerprint Reference Manual
for information on which characters are available in various
combinations of character length and character set.
7 Characters ASCII 0 – 127 decimal can be transmitted.
8 Characters ASCII 0 – 255 decimal can be transmitted.
• Stop Bits:
The number of stop bits specifies how many bits will define the
end of a character. There are two options:
1
2
• Flowcontrol:
There are several different ways to control the exchange of data
between the printer and the connected computer or other device
(“Handshaking”). Each option can be enabled or disabled
separately, but normally only one alternative should be selected.
For galvanically insulated interfaces, i.e. 20 mA current loop and
RS 422/485, ENQ/ACK or XON/XOFF are to prefer in order to
retain interference protection and limit the number of lines.
SETUP PARAMETERS, cont'd.
Serial Communication,
cont'd.
Continued!