webn

free HMI/SCADA program WebN Server 2.0 (freeware)

program download site:  http://www.netran.co.kr

free HMI/SCADA program Web-N Server 2.0 (freeware) - PLC interface video

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 Windows 7/8/8.1/10 x64, .NET frameworks 4.6 over 
 Mult-Language (tool language, view page language) 
 PC monitor, Web browser monitor, Smartphone monitor

(Design once and monitor on multiple instruments)

 Unlimited number of tags 
 Unlimited monitoring time 
 1,024 concurrent connections 
 Unlimited upgrade 
 Unlimited connection of equipment (PLC, DCS, DDC ..) 
 Unlimited app push message

 No Software fee 
 No installation cost 
 No registration fee 
 No license fee 
 No cost to use 
 No upgrade cost 
 Free Redistributable

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skv
If there is no fee, no cost, no registration ..., why wouldn't you release its source code under some of free software licenses? For example, GPL.
http://www.gnu.org/licenses/license-list
Quote 0 0
thiagoralves
I'm sorry, but to me this looks like adware BS! The software only talks over BACnet protocol which OpenPLC is not even compatible with. This is useless to the OpenPLC community unless I'm proven wrong.

I believe this forum already has enough advertising to pay for the hosting costs, and I don't want to have the users also doing advertising. If this software would change its license to open source (GPL or similar) we could find some use for it by trying to add Modbus/TCP or DNP3 to make it compatible with OpenPLC
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webn
Thank you for your kind attention.

This program already supports Modbus / TCP, Modbus RTU and DDE protocols.
It can be used in connection with OpenPLC in its current state.
We will also add OPC-UA and other standard protocols.

The reason why this program can not be open-sourced is that we have developed the N-Cloud service (Big Data Service)
commercially using the core part of the program.

There are security issues in the data processing section, user access management, and external intrusion prevention.
One of the important features of the SCADA program is safety and security,
so I do not want to expose the source code.

I would like to keep freeware of the HMI program part.
So I would like to use it in connection with OpenPLC, but if it is not allowed, I will delete the post.

Thank you.
Quote 0 0
skv
webn wrote:
Thank you for your kind attention.

There are security issues in the data processing section, user access management, and external intrusion prevention.
One of the important features of the SCADA program is safety and security,
so I do not want to expose the source code.

Thank you.


I agree, that security of SCADA system is very important. But achieving safety and security should be done not by releasing proprietary binary code, but by proper design, good code quality, regular maintenance and external audits (someone should look at your code). The history has many times proven that "security by obscurity" doesn't work. Look at big free software projects like OpenSSH, GnuPG, TOR, SELinux and many others. The Internet relies on their security. They are still secure, despite the source code is available.
Second, releasing core under free software license and build on top of this core other commercial services is typical business model of many open source projects. I don't see here any problem.
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thiagoralves
I agree with skv. You can't protect your product by hiding "security" information on the code. The reverse engineering softwares are very advanced now and allow you to extract this kind of information from the code, even on embedded devices. I work as a researcher on the SCADA security lab at my University. Recently I discovered 2 vulnerabilities on the Schneider M221 and Allen-Bradley MicroLogix 1400 by reverse engineering their software. They hide critical information on the software that I was able to retrieve which basically allowed me to reprogram the PLC without having the password or even crash it.

Anyway, it is your company, if you don't want to open source the code, that's your decision. I'm sorry for my bad judgement, but I though this post was just one more of those unrelated SPAM that targets forums. It is good to know that it supports Modbus, which means that it could be used with OpenPLC. I tried installing the software but couldn't find a straightforward way to add a Modbus device. Can you show us how to do that?
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