On Fri, 2007-12-28 at 18:33 -0500, Dave Keeton wrote: > How did you get it to work with EMC2.2.2?
I may be wrong, and you should wait for Peter to get back from walk-about, for a reply, but I suspect he hasn't. I think that he is offering options to people seeking Modbus hardware. Using Modbus with EMC is another issue. There have been rumors that Modbus is available with EMC, but for me, finding any information on it, is like finding hen's teeth. It appears that EMC provides Modbus support via Classic Ladder, this means that it is restricted to non-real-time, which shouldn't be a big deal(?). On the Classic Ladder site: http://membres.lycos.fr/mavati/classicladder/ I found in a README file: http://membres.lycos.fr/mavati/classicladder/README.txt ... snip HARDWARE (DISTRIBUTED INPUTS/OUTPUTS)... ---------------------------------------- ClassicLadder can use distributed inputs/outputs on modules using the modbus protocol ("master": pooling slaves). The slaves and theirs I/O can be configured in the config window. 2 exclusive modes are available : ethernet using Modbus/TCP and serial using Modbus/RTU. For the serial one, the serial port and the speed must be correctly set in the config file (manually with a text editor), and then you must pass this file to classicladder with -c argument. No parity is used. If no port name for serial is set, IP mode will be used... The slave address is the slave address (Modbus/RTU) or the IP address. The IP address can be followed per the port number to use (xx.xx.xx.xx:pppp) else the port 502 will be used per default. The modbus address element 1 is the first one (0 in the frame). 2 products have been used for tests: a Modbus/TCP one (Adam-6051, http://www.advantech.com) and a serial Modbus/RTU one (http://www.ipac.ws) See examples: adam-6051 and modbus_rtu_serial. Web links: http://www.modbus.org and this interesting one: http://www.iatips.com/modbus.html ... snip For getting Peter's ModIO board to talk to EMC, the above README excerpt leads me to believe that you would first need to get Classic Ladder to talk to EMC: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?ClassicLadder Then research the Modbus/RTU mentioned in the README above to see if the ModIO's serial port can talk to EMC/Classic Ladder serially. Another issue, is that it appears that the ModIO is configured with a Windows program, although, for some of you that may not be an issue. -- Kirk Wallace (California, USA http://www.wallacecompany.com/machine_shop/ Hardinge HNC lathe, Bridgeport mill conversion, doing XY now, Zubal lathe conversion pending) ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
