DWIM

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About DWIM

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  1. Fork terminals for Mitsu PLS's

    IO_Rack: Thanks for the link! Interesting stuff there:  STRIPPED CHAIN TERMINALS ...Iooking for this crimp gatling gun...:-) Ron_S: It is not a big problem. It happened. Yes a rare event. I always look around for improvements. 
  2. Fork terminals for Mitsu PLS's

    Bitsn Bytes: The link you showed got me an idea what I've seen in the Mitsubishi document. ==>Non-insulated fork terminals! If we take the insulation away, then their backside is flat, and one can put two onto each other by flipping one over. But...but..if the top row is connected with these non-insulated terminals and the service man wants to fiddle with his screwdriver between them to access the lower screw...nähh...I'll pass on this one. It seems on paper, ideas are always good...
  3. Fork terminals for Mitsu PLS's

    Thanks for your reply. But I disagree. The wire is inline with the pin.Agreed. But then one has to mount this pin at an offset of the top screw. So, the pin and the wire go straight over the lower screw. Because the lower screw has an offset too.  In short: I'm looking for a small flat fork terminal. Those available here are gigantic, made for cars or bulldozers with high currents.
  4. Hi I have a wiring issue. As you Mitsu users know, many PLC's have on each side these two screw rows, one higher and the other lone ower for inputs and outputs. Our wiring expert connects wires by crimping some pipe style shoes with a sleeve (don't know the exact english word) . So far so good. The problem are the mounted wires on the upper "stage" . They cross the beneath screw eaxctly in the middle of their head. Our service technicians come to me and complain about having to remove the upper wires to access the lower screw. This is even more the case if the upper screw has two wires attached. I saw in a Mitsu Manual a nice drawing, where they use a fork terminal or even two on each other, so the wire is exactly centered over the ridge between two lower screws, leaving the lower screw exposed. Does anybody has a place where to order these narrow sleeve fork terminals? Our distributors have only this car-style (=> large, thick) standard crimp shoes. They are so wide, the lower screw is covered again. Thanks for any tips!
  5. Hi I would like to know how to turn of COM.ERR LED on FX3GE PLC. If somebody has a tip, would be great. The FX3GE has, according to the documentation, a FX3-ENET-ADP module built in. Our setup: We have a FX3U as master and four slaves FX3GE. FX3U->FX3-ENET(Ethernet Module)->Ethernet switch -> Four FX3GE PLCs The code in FX3U reads and sends data with the library from Mitsubishi. Basically, it works, but out of nowhere there is an error 2558, Command block x00BF. And the LED is on. We have no malfunctioning on the machine. Subsequent commands/data get through. So, how do we clear the error LED? I have now read many documents and could not find a solution. It works in GXWorks2. There is a button on the "network diagnostic" dialog. But I cannot sit all the time at the customers site to manually clear the LED. It would be of course better, if no error occurs, but I was unable so far to find the correct settings. For example there are many timing settings on the FX3-ENET module to be set with FX Configurator. But I could not find the timing settings for the FX3-ENET-ADP and the help file  of the library says they should match. Further, what do you think, is it ok to run the library code to communicate with 4 PLC's unsynchronized? The master powers up and starts communication with all four slave PLC's at once. To be correct, I'm new to PLC's and don't know the exact execution time of the code/ladder blocks. But I found no synchronization mechanism only four times the same blocks with different IP's / ports fed in. It seems to me they run at more or less arbitrary time and with delays on the network...well....there may be interactions. Any tips or ideas are welcome!