|Re: HP82973A HPIL PC Card|
Message #2 Posted by Holger Veit on 22 Sept 2003, 4:11 a.m.,
in response to message #1 by Philip
>Can the 82973A HPIL card that can be installed into a PC be
>used to control or communicate with other IL devices besides
>printer, disk, plotter and display devices? For instance,
>I'd like to control the 3421A Data Acquisition device or
>3468A Voltmeter. I know the HPIL.SYS driver turns the PC
>into a controller but I'm not sure if it can control all
>devices and if so, how?
Effectively, this controller "speaks" HP-IL, and this means it can send and receive any HPIL command that is possible. The HP-IL module in the HP-41 and in the HP-IL converter
uses exactly the same chip.
So the answer is "yes, that's all possible".
The "how to" is the problem, because you have to understand
the HP-IL command language, and have to know what instructions the target devices actually accept. This should
be documented in the particular documentation for the device
(for the 82161 mag tape and the 82162 printer, this is IIRC
unfortunately not described in detail, but can be obtained from VASM listings of IL module and other second sources.
A must IMHO is to read the Kane&Ushijima bible on HPIL to
comprehend what is really going on at all on the bus.