110482     PL.MAC: A Write Only Device Handler for the IEEE-488
Interface  Version: V1, May 1981
 
Submitted by: J. W. Docherty, Central Laboratories, New Zealand
 
Operating System: MINC, RT-11 V3 or V4  Source Language: MACRO-11
Memory Required: 16KW  Software Required: Uses V3 and V4 MACROS, could
be adapted for V2.  Hardware Required: IB-11 or IBV-11 IEEE-488
Interface, Plotter or other IEEE Device  Keywords: Device Handlers,
MINC/RT-11 Software, Plotting
 
Abstract: This RT-11 device handler provides a means of writing to
a "listen only" device on the IEEE-488 bus (IBV-11
or IB-11 interface). It was written specifically for use
with the HP9872 plotter. PL.MAC may be used in
conjunction with a modified version of the plotting
programs available as the "MINC/BASIC and FORTRAN
support for the H/P 9872A via IEEE-488 BUS", DECUS No.
11-427. Details are available from the author. The
advantage of this handler as compared to the use of
Digital Equipment Corporation's instrument bus subroutines
is that it may be assembled for use with an XM monitor.
Plot files may be created on disc without waiting for the
actual plotting and normal RT-11 file transfer programs
(e.g. QUEUE or PIP) may be used to actually plot the data.
 
A SET Command is provided to enable the IEEE bus
listener address to be changed. UNIBUS addresses and
vectors may be changed by editing the source file.
 
Restrictions: Restricts user to only one active device on IEEE bus,
this device operating in "listen only" mode. The
Handler was written for use with HP 9872 plotter.
 
Media (Service Charge Code): One RX01 Diskette (KA)  Format: RT-11,
600' Magnetic Tape (MA)  Format: RT-11