Re: [CAD_CAM_EDM_DRO] Qmodem terminal

To check your cable out and back and the qmodem program make up a connector
that plugs into the end of the cable. Jumper pins 2 to 3, pins 4 to 5 and
pins 6-8-20. Three separate jumpers. This is called a loop back plug.

Start the qmodem program and start typing. You should see what you type. If
you see double, two characters of what ever you type, turn echo off.

If OK so far find an Idiot block (little block with several LEDs on it that
plugs into the end of the modem cable that lets you see the status of each
line).

Plug in the loop back to see what it looks like. Then remove the loop back
and plug it into the indexer. First check to see if pin 2 and 3 are lite. If
not you probably hace a DTE / DCE mismatch and need to cross pins 2 and 3 in
one end of the cable. Try again and see if both LED 2 and 3 light up. You
may also need to cross 4-5 and 6-8 keeping 8 and 20 together.

The LEDs will not tell you if your baud, data, parity and stop bits are set
wrong but will tell you if you have the signal lines hooked up properly.

Ask for more help with RS-232 standard communications if needed.

Blindly figuring out RS-232 is not for the faint of heart.

Hugh

----- Original Message -----
From: "Chuck Rice" <Chuck@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Cc: "Brad Eyben" <abeyben@...>
Sent: Monday, November 01, 2004 7:48 PM
Subject: Re: [CAD_CAM_EDM_DRO] Qmodem terminal


>
> At 5:36 PM -0700 11/1/04, Brad Eyben wrote:
> >Hello,
> >I'm trying to communicate with an API315 indexer drive in order to
> >set up the in/out pins which are configurable.
> >I've never used a terminal program, The only computer I have with a
> >serial port that will fit the connector is running DOS only and I'm
> >lost.
> >Would some kind person here help?
> >I've been able to install the program Qmodem as recommended in the
> >manual, I've plugged it into the drive and fired up the software. It
> >says I'm online but I'm unable to type anything into the terminal
> >window.
> >I've also used the MODE command to configure COM1 as requested.
> >How can I check to see if the PC is transmitting over the cable or
> >if the drive is responding.
> >At this point I have no idea where to start. Seems like something
> >outa the 80's.
> >Also, if I go to split window, it lets me type commands but nothing
> >happens when I push enter.
> >The program is made by Mustang Software but I can't find a site for
> >them. All the links are dead.
> >Thanks for any help.
> >Brad
>
> Generally with a serial port program, you need to set
>
> Data bits/Parity/stop bits/speed
>
> So somewhere it should tell you something like:
>
> 8-E-1 9600
>
> That means you need to set your terminal program up to use
>
> 8 data bits
> Even parity
> 1 stop bit
> 9600 bits per second
>
> There is also something called Echo. You need to turn Echo on if the
> device is not designed to echo what you send to it back. Generally
> you start with echo on, and if you start getting double characters
> back when you type, turn it back off.
>
> Another thing you need to check is your cable. just because the pins
> match does not mean that you have the correct cable. It has been too
> long for me to remember, but one cable type is for DTE (Data Terminal
> Equipment I think) and the other is for DCE (or something like that).
>
> Sorry I do not remember more, but it has been a long time. Web
> searches on some of the terms above might prove helpful. -Chuck-
>
>
>
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