User`s guide

PRINTER SETUP
Copyright © 2006, Cognitive. 143
VARIABLE COMM
IMPORTANT!
Do not experiment with this command! Improper use can cause a loss of serial
communication with the printer.
Function Sets new serial port parameters.
Explicit Form
Implicit Form
VARIABLE COMM speed,parity,length,stop,
R
V COMM speed,parity,length,stop, R
NOTE: Notice that commas are used as delimiters
between parameters, and there are no spaces. If you
are uncertain of the printer's current serial port
parameters, try 9600,N,8,2.
Parameters
speed
Baud rate. Acceptable values are
printer dependent, but are among
the following: 600, 1200, 2400, 4800,
9600, 14400, 19200, 38400, and
57600. Consult your printer User's
Guide for details.
parity
O (Odd), E (Even), or N (None)
length
Data word length. Can be 7 or 8
stop
Number of stop bits. Can be 1 or 2
ROBUST or
R
N
Enables robust XON/XOFF
handshaking (see comments).
Turns software handshaking off.
NOTE: Not all personal computers support all baud
rates. Make certain that your host system will support
your
VARIABLE COMM parameters. Setting the printer
for a baud rate that your host will not support will cause
a break in communication that may be difficult to
remedy.
Cognitive printers will not support all possible parity,