HP-IL/RS232C Interface

From: Joe <rigdonj_at_intellistar.net>
Date: Fri Dec 10 17:40:17 1999


At 12:29 PM 12/10/99 -0800, you wrote:
>On Fri, 10 Dec 1999, Joe wrote:
>> Don,
>> What do you want with that? You can't use it on a CPM computer. You'd
>> better throw it out. While you're at it throw it this way!
>Gee, Joe, all of my CP/M stuff has RS-232C :)
>> If don't believe that then I can make a copy of the manual for you. You
>> don't need any software for it but you do need a HP calculator or computer
>> that has a HP-IL interface (HP 41, 71, 75, 85, etc). You *can't* use this
>> with a computer with a serial port to make a IL controller. It's only a IL
>> to RS-232 translator. It's main use is too allow communications between an
>> HP with IL to a regular computer with RS-232.
>I would certainly appreciate a copy of the manual. Seems like I picked
>up an ISA HP-IL card a while back and the software to drive it, too.

  Those are cool but they only run on a slow PC ( <~30 MHz).

>I interpret correctly, you are telling me that the HP-IL/RS-232C
>Interface is a receive only device, or am I misreading you.

   You can consider it recieve only but it recieves from either side! Then
it transmits out the opposite side.

    It can be both a talker and a reciever but it has no controller
capability. It's used as a translator between HP-IL loop and RS-232 bus. It
can send data either way but you have to have some sort of a HP-IL capable
computer to act as the IL loop controller. For example you can use a HP
calculator with the IL interface and this device to drive a RS-232 printer
or you could use them to operate a meter with a RS-232 inteface (both
sending and receiving). But you can't use a computer with a RS-232
interface and this to run HP-IL equipment like a HP 3468 meter.

Received on Fri Dec 10 1999 - 17:40:17 GMT

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