Definitely put a separate controller on the robot/pick and place. I'd consider using Modbus TCP via Classic Ladder for the interface handshaking. It should be fairly simple.
Everything is already built into LCNC to do that. I've used the Modbus TCP master via Classic Ladder several times to talk to interface PLCs to LCNC. I believe that the Modbus TCP Slave also works so that should work for LCNC to LCNC communications. If you run into comm issues, there are free Modbus TCP debug tools on the web. If you are making a cartesian robot/pick and place . Consider using a small PLC to run your pick and place. Some small PLCs can run 4 or more axes of step and direction drives. If you know ladder logic, it might the be easier than using LCNC. Running a robot is not the problem. Handling all of the exceptions is the issue. For instance you pick up the part and begin the move and the part vanishes from the gripper. Now what do you do? Etc Etc.. Ive been working on a machine cell with 3 Yaskawa robots and a number of machines. The Yaskawa robots handle all of the motion while the PLCs command the robots and handle the exceptions and run the machines. Dave On 3/15/2017 5:32 PM, Nicklas Karlsson wrote: >> Depending on how much or how little control you need between the two, I >> might not even hassle with the network interface and just use a few GPIOs to >> signal between the two, and maybe a remote desktop control for setup changes. > Remove part --> output > Part removed <-- input > > Machine: > 1. Wait until part removed input from robot is reset, part remove output > should be in reset state here. > 2. Set remove output. > 3. Wait for robot to set part removed input. > 4. Reset part remove output so that robot know then it could reset part > removed input. > > Or? > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
