Re: [Gambas-user] gambase and modbus
Jean-Yves F. Barbier ha scritto: Werner a écrit : ... Depends on what you use it for, it's not free for commercial purposes. You have propably seen http://copyleft.free.fr/wordpress/index.php/libmodbus/ Thanks Werner, this look interesting. But AFAIK, GPLv3 LGPLv3 don't forbid commercial use as far as you provide a meaning to get all sources to the client (for short, it's better to supply compiled AND source:) and retain the copyleft and credits to original creators. JY I wrote in C, some time ago, an embedded application using modbus on RS-422. It is not a difficult matter, at least the part I was interested in - my device acted as a server, and a MMI (a touch screen LCD panel) was attached to it. If you are interested in, I can send some C source code and perhaps the official documentation I used to write it (available for free in the Internet). I don't remember if my implementation was full or had only the relevant part, but it was simple and short enough to be translated easily to gambas; there was only the CRC-32 (or whatever checksum) which was a little CPU intensive, but I suppose an i386 computer has far more power than a poor embedded microcontroller... Unfortunately this material is in the computers at work, I have not it here at home, but the next monday I can fetch them. Regards, -- Doriano Blengino Listen twice before you speak. This is why we have two ears, but only one mouth. -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] gambase and modbus
Doriano Blengino a écrit : ... I wrote in C, some time ago, an embedded application using modbus on RS-422. It is not a difficult matter, at least the part I was interested in - my device acted as a server, and a MMI (a touch screen LCD panel) was attached to it. Oops, my fault, I forgot to tell precisions: * It is in fact ModBus TCP, * I'll use it for a HA cluster that'll retrieve info from some concentrators (900 sensors dispatched on 4 concentrators) If you are interested in, I can send some C source code and perhaps the official documentation I used to write it (available for free in the Internet). I don't remember if my implementation was full or had only the relevant part, but it was simple and short enough to be translated easily to gambas; there was only the CRC-32 (or whatever checksum) which was a little CPU intensive, but I suppose an i386 computer has far more power than a poor embedded microcontroller... Thanks Doriano, but I think I've found what I need: I already retrieve docs from modbus.org, and find OpenSCADA (written in C++) that seems to be ok to do the trick. I only need to make some tests, and asked the hardware installer to try to get a simulator from his supplier. JY -- You will think of something funnier than this to add to the fortunes. -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
[Gambas-user] Coordinates X and Y en DrawingArea controls
Hello. VisualBasic Picturebox control has a MouseMove event which has 2 arguments (x as integer, and as integer). This lets me know the X and Y coordinates when the mouse moves over it. Is there something similar in Gambas? -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Coordinates X and Y en DrawingArea controls
craf wrote: Hello. VisualBasic Picturebox control has a MouseMove event which has 2 arguments (x as integer, and as integer). This lets me know the X and Y coordinates when the mouse moves over it. Is there something similar in Gambas? -- In Gambas2 apparently a DrawingArea can do that (with Tracking property set) but a PictureBox can't. Regards Werner -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf ___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
Re: [Gambas-user] Arithmetic failure in project..Solution
On Fri, 2009-10-02 at 23:11 -0500, nando wrote: Friend, I have gone through your project and I ran it with these changes: (1) in SUB action_click...insert above this line: result = (exposure * (guidenumber / distance) * (flashcompensation) * (multicompensation)) these four lines: IF gn_feet.Value = TRUE THEN guidenumber = (input_gn.Value / 3.3) IF gn_metres.Value = TRUE THEN guidenumber = input_gn.Value distance = input_distance.Value if distance = 0 then distance = 0.1 'to prevent divide by zero error result = (exposure * (guidenumber / distance) * (flashcompensation) * (multicompensation)) (2) Remove or REM the 3 line sub: PUBLIC SUB input_distance_KeyPress() distance = (input_distance.Value) END Hello there :) Yes, that solves the basic calculation problem. I'm still having an issue with CASE input_power.Selection ... it just doesn't work, expects an object instead of a string or some such... Thanks very much! -- Horst. signature.asc Description: This is a digitally signed message part -- Come build with us! The BlackBerryreg; Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9#45;12, 2009. Register now#33; http://p.sf.net/sfu/devconf___ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
