Posted 12 Mar 2018 (edited) Hello, I would like to see your logical opinion about this situation and in which part of system where I need to find solution - software or in the physical field. Subject: Twelve old system based on Mitsubishi PLC AnS series, Profibus Here is pneumatic transport, with 5 lines, each line have a shredder and discharge valve. A few months ago, when line 1 works , display shows line 2 and vice versa, it was first problem, but the system was still working. From the last week system doesn't work. On the display appear line 3 in works, but system can not started. Alarm shows Double address (perhaps two valves have some address), Alarm still appear after reset and even all lines are turned off. What is your opinion where to find proble (PLC, I/O moduls, cables,...) Edited 12 Mar 2018 by Extraday Share this post Link to post Share on other sites
Posted 12 Mar 2018 So only the Display was replaced ? Share this post Link to post Share on other sites
Posted 12 Mar 2018 No, I explained it badly...nothing was changed. I edit my post with better explanation. Share this post Link to post Share on other sites
Posted 12 Mar 2018 We can't really help you with your problem without more details. What is the 'alarm' being displayed on? Do you have the software etc to get into the programs? The 'double address' fault will have a tag that displays it when it occurs. Share this post Link to post Share on other sites