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        Serial Port Solution >> Network Serial Port Kit >> Problem with NSPK 5.3.2
        
(Message started by: dark_avenger on Mar 16th, 2008, 11:24pm)
Title: Problem with NSPK 5.3.2
Post by dark_avenger on Mar 16th, 2008, 11:24pm
Hi, we have a problem with our electronic scales model: VP 15 t.2 (http://www.torgdom-shtrih.ru/vesy/img/p-vpt.jpg).
They not work by NSPK :( .
We also have a bar-code scanners, they work with nspk very good.

Client machine: windows server 2003 (nspk client)
Server machine: windows xp sp2 (have a shared com ports)

Can your help us?
Title: Re: Problem with NSPK 5.3.2
Post by Andrew on Mar 17th, 2008, 12:15am
Hi,

Let's resolve the issue. So, that scales software does not work correctly when using NSPK virtual port. Usually the problem is related to timing issues. Could you please play a bit with "Network Latency Compensation" option.

If does not help, let's see it in details.

We need investigate serial traffic to know exactly why it appears and to find the proper solution.

Usually we use portmon program to monitor serial traffic.
Please download it from here:
http://download.sysinternals.com/Files/PortMon.zip

Please use the following portmon setting:
Edit -> Max Output Bytes -> 1024
Options -> Show Time [x]
Options -> Show Hex [x]
Options -> Clock Time [ ]


Experiment 1
============

Remote PC (physical COM port)

1) Launch portmon
2) Configure portmon to capture data from physical COM port: Capture -> Ports -> ...
3) Launch communications program and work with your device for some time. Then close communications program.
4) Save captured data to file: File -> Save As -> remote1.log


Experiment 2
============

Remote PC (physical COM port)
1) Launch NSPK and share physical COM port
2) Launch portmon
3) Configure portmon to capture data from physical COM port: Capture -> Ports -> ...


Local PC (virtual COM port)
1) Launch NSPK and create virtual COM port connector (redirected to physical COM port of the remote PC)
2) Launch portmon
3) Configure portmon to capture data from virtual COM port: Capture -> Ports -> ...
4) Launch communications program and work with your device for some time. Then close communications program.
5) Save captured data to file: File -> Save As -> local2.log

Remote PC (physical COM port)
4) Save captured data to file: File -> Save As -> remote2.log


Please send us there 3 log files: remote1.log, local2.log and remote2.log
Title: Re: Problem with NSPK 5.3.2
Post by Andrew on Mar 17th, 2008, 12:16am
Ah, as I can see you use 5.3.2
Please try 5.3.8:
http://www.network-serial-port.com/nspk-data/5.3.8/network-serial-port-kit.zip
Title: Re: Problem with NSPK 5.3.2
Post by dark_avenger on Mar 17th, 2008, 4:12am
Thank you, now i'll try new version. If it not help me, i'll try to collect logs.