topic Re: Pathworks DECnet DDCMP protocol on serial port on Windows XP in Operating System - OpenVMS

Pathworks DECnet DDCMP protocol on serial port on Windows XP

Geert Van Pamel — Tue, 28 Sep 2010 21:42:04 GMT

This is not exactly for OpenVMS, but is concerning the DECnet DDCMP module in Pathworks (Windows XP).

Customer wants to interface a Windows XP PC with a PLC machine via DECnet/DDCMP using a serial line (RS-232).

He tries to install Pathworks32 V7.4. According to the installation guide, one should choose "Custom installation" and "Remote Access" to include the DDCMP module.

But only the option "DECnet" is available.

See also http://h71000.www7.hp.com/doc/721FINAL/pw32/PW_IG.PDF

Can anybody indicate how we can include the DDCMP option?

Re: Pathworks DECnet DDCMP protocol on serial port on Windows XP

Brad McCusker — Tue, 28 Sep 2010 23:13:06 GMT

Can you tell us what the attached file is a picture of and why you included it? That picture has the "Remote Access" option.

Why did you include that attachment?

Brad McCusker

Re: Pathworks DECnet DDCMP protocol on serial port on Windows XP

Geert Van Pamel — Wed, 29 Sep 2010 09:31:33 GMT

Brad, yes! Thanks for your reply.

Actually the attachment comes from the Installation Guide Pathworks32 V7.4 [actually the latest (?) release created by Compaq] and shows what we *should* see.

Actually the customer only has the option DECnet on that screen.

The Installation Guide describes that you can install the DDCMP module (needed for DECnet over serial line) via the "Remote Access" option.

Question: What causes the "Remote Access" option not to be visible?

Re: Pathworks DECnet DDCMP protocol on serial port on Windows XP

Brad McCusker — Wed, 29 Sep 2010 13:50:53 GMT

Geert,

Sorry, I'm not going to be much help here, PW-32 was never in my area of responsibility.

One thing I noticed is that the SPD seems to be saying that Remote Access is available for Windows NT 4 only. It doesn't explicitly say "NT 4 only", but, that is the only OS it mentions. Combined with the behavior your are seeing, it leads me to think maybe it's not available on WinXP?

SPD 56.33.09: http://www.compaq.com/info/SP5633/SP5633PF.PDF

Brad McCusker
Software Concepts International
www.sciinc.com

Re: Pathworks DECnet DDCMP protocol on serial port on Windows XP

abrsvc — Wed, 29 Sep 2010 14:47:52 GMT

I would have to agree with Brad here. My recollection is that there were no updates done to PW-32 after NT4. While most of the functionality will continue to work properly, anything from an installation standpoint that is triggered by version may not happen.

Dan

Re: Pathworks DECnet DDCMP protocol on serial port on Windows XP

Geert Van Pamel — Thu, 30 Sep 2010 07:12:01 GMT

Some progress:

Customer has installed Pathworks on Windows 98 instead of Windows XP.

On Windows 98 the Remote Access appears.

Next question: how to configure a "Null modem" connection as a DDCMP interface in Pathworks32 for Windows 98?