jeffellis1 Posted January 10, 2006 Report Posted January 10, 2006 Does anyone have a ladder logic file or something for any type of extrusion press? I have RSlogix 500 or 5000 so if you have a file that will open up in either one of those programs that would be great. Thanks for any help, Jeff Quote
Wordman Posted January 10, 2006 Report Posted January 10, 2006 I would help you with somewhere to begin if you gave more details about the machine.. You sound like someone who has no experience of PLC programming.. it would help if you learned the basics before you tried to write a program for a machine Quote
TimWilborne Posted January 10, 2006 Report Posted January 10, 2006 Now I don't think we can say he doesn't have any experience in Plcs by what he has posted. This post started in the Allen Bradley section and I suggested he move it here because the function would be similar no matter what Plc he used. I think he is asking for it in RsLogix 500 or 5000 format because he has that software. But also, jfls41, I told you over there that there are a ton of different types of "extrusion presses." Can you please provide us with some specifics on what type of extrusion presses they use/manufacturer. Quote
jeffellis1 Posted January 11, 2006 Author Report Posted January 11, 2006 I don't know why I keep getting replies about not knowing plcs when I asked for an extrusion press program, especially when I list the specific software I have to open it up. I never said I wanted to write a program, etc etc. So thanks for straightening it out. I feel like I am banging my head against a wall ever since I posted this request on the Allen Bradley forum. So here goes, I will try to explain what it is I am after in as much detail without causing more confusion. I don't want to say the name of the company on here but the position is servicing aluminum extrusion presses. My background is in mechanical stamping presses. I have never even seen an aluminum extrusion press but the hiring manager is willing to interview me thinking that I have the necessary skills to cross-transfer into the position. The next interview is going to be him sitting down with me and showing me a program file and asking me questions, so I thought, I would come on the forum (because I received help here in the past) and maybe by some chance I could find a file for one of these machines, that way I wouldn't be cold turkey and could get a little familiarity before the interview. I do know this company has the Allen Bradley SLC, PLC5, and some ControlLogix systems. I have RS Logix 500 and 5000 software so I could open up the .rss or .acd files. These extrusion presses have hydraulics and move alot of data, this is what the hiring manager told me during the initial phone interview. I would assume using the move instruction? So basically, I am trying to get a leg up on this, by seeing if I could find a program file or someone telling me where to find something similiar. Thanks guys, Jeff Quote
Gerry Posted January 11, 2006 Report Posted January 11, 2006 I think you're approaching this from the wrong end. So, you're no stranger to A-B PLC's. The same basic instructions get used most of the time. So moving from stamping presses to extruders isn't going to be like learning Chinese. If I was in your position I would be looking to learn something about the extrusion process and I wouldn't expect to learn much from some sample bit of code. translation: he considers that you have the necessary skills to understand a PLC program and the necessary aptitude to learn and understand the extrusion process. Together, he thinks you might handle the job once they've educated you in the process and familiarised you with their programming techniques. The quiz questions will most likely be designed to assess your problem-solving methods and logical thinking processes, not your knowledge of extruders (but wouldn't hurt if you had some) or their specific program requirements. Quote
jeffellis1 Posted January 11, 2006 Author Report Posted January 11, 2006 Gerry, I think your advice makes alot of sense and I will concentrate my efforts on learning more about the extrusion process. Thanks for helping me out and pointing me in the right direction. Jeff Quote
TConnolly Posted January 11, 2006 Report Posted January 11, 2006 (edited) Agreed. First place I would point you is to gaining a little hydraulics knowledge if you dont have much. That extrusion press is most likely to be hydraulic and will come with an entirely different set of problems than a mechanical stamping press. A couple of years back management here got the crazy idea that every maintenance tech they hired needed to know PLCs and failed to focus on hydraulic skills even though most of our systems are hydraulic. The PLC rarely fails and a good hydraulics man can diagnose a valve problem without dragging out a laptop and getting into the PLC to see what is up. Through attrition we lost the two people on staff who understood hydraulic systlems. They were replaced with PLC people who knew nothing about hydraulics. I have been dealing with the aftermath of that ever since. Even if they understand the PLC program, without understanding hydraulic circuits, they struggle with every little problem. One of the new guys finally took initiative and got some hydraulics training after two years. That guy is starting to become a very valuable technician. Edited January 11, 2006 by Alaric Quote
jeffellis1 Posted January 11, 2006 Author Report Posted January 11, 2006 Actually, I just ordered the Basics of Hydraulics from the NFPA website (National Fluid Power Assocation) and started doing the course. Its a free course but you have to pay for the cd and shipping-$10.00. Jeff Quote
TConnolly Posted January 11, 2006 Report Posted January 11, 2006 (edited) Glad to hear it. It sounds like you are well on your way and already way ahead of the average technician. Is that this CD? http://www.nfpa.com/Education/Edu_Learning...dTrainingCD.asp Edited January 11, 2006 by Alaric Quote
jeffellis1 Posted January 12, 2006 Author Report Posted January 12, 2006 yes, it is the cd they send to you. the pneumatics course is online and free. I learned alot from taking it. Jeff Quote
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