TLServer

[pacinc]

I have a client that uses your T100MD+ series PLC's.  I have written an HMI with VB 6.0 using Modbus protocol and it works without issue.  I was looking at your Java code for remote connectivity and was wondering if the same could be done with a Windows based application using Sockets.  Would it be possible to use the TLServer and a TCP/IP sockets connection to poll and poke data to the PLC.  My client is very much into the R&D phase of development for this particular project and this would give them an open solution for Java based or Windows based HMI solutions.  Thanks.

[support]

Theoretically yes. Except that because of some proprietary encryption scheme we used to encrypt the password you would not be able to login to the TLserver without the code. The JavaAPI library we provide for our users contains the code for logging in to the TLServer using encrypted password so if you write in Java you can simply use the library. Until we release a library in DLL format for Visual Basic or Visual C, you won't be able to login to the TLServer just by the TCP/IP calls.

[pacinc]

Are there any plans to develop and release such a DLL?  If so, when?  Thanks.

[support]

Not to my knowledge yet unless there are sufficient demand. We strongly recommend using Java library since it is already available free-of-charge for our user.

The main advantage of writing in Java is that the user-interface can be compiled into an Applet that can be download from the TLServer from any browser without  requiring local installation (just like the TRiLOGI software itself, you can have both applet version and application version).

You may be able to find a 3rd party TCP/IP server that support MODBUS protocol and then you will be able to modify your current VBASIC program slightly to use the server. Try a google search... Good luck!