If that doesn't work, I will search my old records to see if I have any other contact info. I'd love to see a picture of the unit that Daleroe built. I thought my question was clear within the context of my previous post. I really dont have any solid info to help, just some things to try. It was making intermittent contact which caused the error. If that doesn't work, I will search my old records to see if I have any other contact info. Byron, I have seen this exact problem years ago.
Somewhere in my old collection I have everything required, hardware and software, as I used to maintain several of these but we are a long ways apart so it won't help you much right now. Throughout the 60's, 70's, and early 80's, 20 mA current loop interfaces were applied in many types of equipment. I really cant tell for sure from the picture, but it looks opposite from that. Is the material feed at a constant speed always? I've also talked with Karl at xtronics. I found a used servo drive installed it and built an interface cable to tune it. For some reason I was thinking of X002 and X003 digital inputs. Why are they using two photoeyes for the registration marks? I decided to build it on a breadboard to try it out.
I am reaching a point where I should have some more time to devote to this project. It is over 500 volts so by the time it is transformed down to 240 and 120 I have 260 and 130, and sometimes slightly over that. Some client's cannot afford the down time right now either. I've read so many of the manuals, I don't remember which one i was or if I might be confusing myself. I was told to forget it.
I can't open it to find out and since I can't open it I certainly can't print it which is what I need at this point. I'm at the end of my rope. Does anyone have the capability to print the ladder logic out for me? You would need to get the details from its manual. Yeah, the customer has no spares. The help that I received from jrwb4gbm on and off the forum has been exemplary. An internal resistor network is used to create a 20mA source if needed. Each loop may be operated as an active or passive loop.
While double checking my setup I will document it more thoroughly and post the specifics. Page 27 in the manual has more details. See post 20 for the supplier source Mouser. Maybe you can find them locally at a ratshack store. The question remains what is the programming port since that is now my target? I called them and the guy I talked with didn't really know what was needed so I emailed him the part numbers etc a few days ago.
I am also attempting to extract and compile the applicable information from all of the manuals into one document for ease of review. I just uploaded a screen shot of the Allocation Table. I think I read in one of the manuals that it needed to be 2. Since it appears to be a twelve point module, the individual outputs are the first twelve bits of that word. If I do I can give it a try. While double checking my setup I will document it more thoroughly and post the specifics.
I really think a narrated video on youtube or somewhere will help show how you are trying to make it work. I guess it might be worth a try setting everything to the lowest baud rate and extend the timeout timer to see if I can get any kind of communication. I went onsite and still got the same error messages of no communication. It's a slow, tedious procedure for large programs. I hope I can get them at the shack although they don't carry much of that stuff any more.
I got back from the service call. This is without using a Hardware Key. When I first started this project one of the employees had just replaced some cables that were damaged and the servo motor. Thank You and everyone for all the input into this. I'm in the process of loading all the info I have to the web. Any pics or idea if its available anywhere? With that info, maybe we can determine exactly what is needed to make the converter work.
Even after tuning the servo amp, there are still some quirks that need addressing. Yes, the current loop adapter as depicted in the schematic by jrwb4gbm is fully functional! Whether or not the +5 is enough is just a guess, I don't know the voltage requirements of the chip inside the converter. I would try to field test your setup with everything the same but with the internal jumper from 12+ terminal to 5+ point on circuit board that you added for bypassing the two resistors removed. Drive Card via control terminals for Forward and Reverse. I'm at the end of my rope.