coopdegrace

Hi All, I have an interesting project that may be coming up in the near future and I wanted to get some opinions on how to approach the PLC development. First of all I am new to Omron Sysmac and haven't yet done any real life projects but I have a lot of experience on other platforms. From what I have seen so far though its pretty impressive. So the project is to develop the code for an X-Y-Z Orthogonal Robot. The robot will basically pick up a box and lay it down on a pallet (essentially a palletiser) My thoughts so far is to develop a state machine that steps through an array of co-ordinates, once all of the positions have been stepped through the pallet is complete and the robot waits for a signal to start the process again. From what I have seen Sysmac does not have dedicated state machine functionality so I was thinking to creating it using statement list and CASE function So my question is has any one attempted something similar and can offer any advice? Or to anyone who is more familiar with Sysmac, how would you approach this. Any help is much appreciated Cheers

Dear all, I am desperate for some help with a Prosoft DVI69-MCM MODBUS module. Details: Prosoft DVI69-MCM MODBUS module set up as slave with a CompactLogix PLC 1769-L33ER PLC. I have added the Prosoft add-on instructions from their website. The Master is a third party machine that is trying to write and read information from the Prosoft module. I believe the system is set up correctly because the Master can successfully read information from the slave. My problem occurs when the Master tries to write data back into the read holding registers of the Prosoft module. Part of the requirement of the Master is that it needs to see a string of 'X' characters in the read holding registers before it will write any information. My problem is that when I try to write information into the read holding registers they reset back to '0', which means that the Master faults saying it does not have 'write permission'. I believe the add on instruction AOI69MCM supplied by Prosoft is where the read data is being reset back to '0' but I am not sure why it has been set up to do this. I have tried setting the module up as a pass through slave but I have the same problem. I also know its not the Master resetting the read holding registers because when I unplug it the I can still see the data going back to '0'. I have been trying to set up this system for some time with no luck, so any help would be very much appreciated. Thanks