Use this command to show the settings of the various PRF parameters. Use the READ command to display the names of currently queued files. If the filename is omitted, the last file to be queued by this process is cancelled. This command is only effective for files which have not yet physically begun to print. Issue the DM command ICON to change the icon window into its full-size format.
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The parity menu should be set to the 8-BITS and EVEN selections. Unfortunately for those of you who program in Fortran, there is no insert file for that language - you just have to learn Pascal. The subroutine is given the line number of the SIO line to which the plotter is connected and the baud rate of that SIO line. This subroutine is called from the plot server to perform the actual output of the data to the HP7550 plotter. The subroutine is given a buffer of up to 2048 characters and a buffer length.