Ron_S
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If it is wired with 0V at the common terminals - then 24V will be the common for whatever the outputs are powering. When the output is off, the 24v will come back through the coil (giving a false 24V really) When the output is on it will now be 0v (or negative)
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D0 or DO? However, the outputs can be supplied on the common terminal with 0V and 24V can be the common for the relays/contactors in the panel. It's the practice in Japan and often Chinese machines. The S/S is just for input signals
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Ron_S liked a file: STL forward pause reverse
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WattUp liked a post in a topic: Endless Timer
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Show us how far you have got and we will gladly assist you. A tip: If timer = 1 then ?
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glavanov liked a post in a topic: Duff FX3G 80MR
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This is just information that might help someone in the future. I was called to a job where the above PLC had fault lights on. When I connected, there was no program inside.?? They had a back-up program so I downloaded it and all seemed OK. Then the error light started flashing again. Once again, the program was missing. Short version: They rushed out to buy a new one, I installed it, put the program in and they were back up and running with no issues. Later, in my office, I opened the PLC to see if there was anything obvious. There wasn't. If you have ever opened an FX plc - they are a marvel of micro electronics with virtually no replaceable parts. (obviously output relays and transistors but that was not the problem) I have lots of 2nd hand FX plc's so I swapped out the 1.0Fsupercapacitor from one. More in hope than anything else. That was the problem - it worked perfectly. A £3 supercapacitor fix.
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put more pin holes in the disk and recalibrate
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Does anyone else suffer from this strange anomaly? If I save a program using GX Works 2 onto my laptop hard drive - everything is fine and I can open it again at any time. If I save it to a USB memory stick, once again, I can reopen it with the laptop, no bother. But... If I then put the USB into my main PC, I immediately get an error that the USB is corrupt and needs repairing. If I 'repair it' the GX file will not open. If I ignore the repair message - I can open the program and everything is fine. I can save it to the PC hard drive or the USB. This is the same with any USB stick Same operating system (win 10) on both.
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Ron_S liked a post in a topic: Short way to write contacts in OR gate ?
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Yes, it has to be part of the routine of connecting to a plc - check which com port is being used by the adapter
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I checked that and the list was missing too or filled with NOP's I couldn't clear the memory or anything.
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No high temperatures or extremes of anything. A nice bedding company, a Printers, a cosmetic bottle-filling station and so on. Red error light flashing. I could get partial code out of some but with missing logic and yellow pages but none would allow programming or a new one to be downloaded. I even opened some PLC's to see if there was anything in common but they all looked perfect inside. I have one of them here on my desk - an FX1n 40mr. It looks brand new but even after a few weeks of sitting there it has the same fault and starts to communicate, then stops. I agree, 20 - 25 years is a good run but it's causing chaos with factories that don't back-up.a
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Has anyone else noticed that a lot of old FXnn plc's are starting to fail? By old, I think 20 - 25 years old. It's just that in the last 12 months, I have had to attend about 10 FX plc's with the red error light and unrecoverable programs. Only one FX (you know, one of those big square things) was a flat battery that had never been changed. The rest were battery-less models. That is, apart from one FX2n - but the battery was fully charged on that one. Not only was it impossible to recover the program - they would not accept a program or allow a fault diagnosis. Same fault across different industries. Maybe take it as a reminder to back-up aging FX models. They are coming to the end of their life cycle.
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There is a link to the software on this page It's still active
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Need a simple 1 second pulsed output with button push
Ron_S replied to Soundman5535's topic in Mitsubishi
You'll have to explain more... Do you want a 1 second on, one second off output, when an input is on? Or.. an output on for just one second when an input is on. -
I mean you will get warnings that the versions do not match. Ignore it and upload anyway.
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I usually let sleeping dogs lie with version and firmware updates. If they were working perfectly before I came - they'll be the same versions when I have gone. Probably because I once 'bricked an E300 doing an unnecessary upgrade.
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You start at the beginning. Check your pc has a usb to serial port showing - and what com port number it is. If you do, open a blank E100 project and go to Transfer. select Recieve and set the Com port to the same number.