Andrei Blagaila

Can you send us the Datasheet for the LoadCell?

If it still flashes after replacing the battery, it's a programming issue. Maybe wrong type of CPU set in the Software or something.

Try putting a new battery in it. When PROG_E flashes it is a battery problem. Then reset the PLC and try the Connection Test if you are using GX works or transfer Setup -> Connection Test if you are using GX Developer. If that says it's connected try to download you back-up from your PC to the PLC again.  I'm 90% sure the battery is dead and that's why it's in fault.

Hy guys, I am working on a series machine that runs Mitsubishi PLC. In the past it had PPC-CPU852 on it that ran a communication software. Starting from 2012 that part is no longer produced but we had a lot of them in storage. Now we are talking about changing it to Q10WCPU-W1-CFE. The custom software will run on it because i already checked. Because i'm not very experienced with Mitsubishi I wanted to ask if I replace the old PPC and it's HDD with the new WinCPU, should I expect any problems if the custom software I need to run on it works? In the PLC Parameter->I/O Assignment I still have the PPC written and it's HDD but at type I have empty. I used this software to run on a rack with WinCPU but not on the whole machine. Just on the rack. Do I need to change the I/O Assignment or will it not affect anything?

It's a machine in the semi conductor industry. The ppc/wincpu is used to run a custom c written software that communicates to a host through the SEMI standards. It basically takes the state of the PLC variables via the rack bus and sends them down to the host. I'm curious. If I leave the I/O assignment as it is and just change the PPC with the WinCPU should I expect problems? The points allocated to the HDD are just not used in this care right?

Try doing it like this: M8000 --------------------------------------------------------C251 D0              --------------------------------------------------------DMOV C251 D1              --------------------------------------------------------CMP K5  D1 M0 CMP compares D1(the value of your counter) to K5 (the constant value 5) and set the following M0 is on when D1 is less than K5 M1 is on when D1 is equal to K5 M2 is on when D1 is greater than K5. So your last line will be: M0-------------------------------------------------------------Y000 and this turns on Y000 as long as D1 is smaller than 5. To count the step numbers i suggest you turn on the plc and encoder without connecting any outputs(safety reasons) and move the arm by hand until the desired position. Then you just read the value stored in C251 and you have your answer.  

Thank you for your answer @kaare_t So 3rd slot reads empty because the PPC and WinCPU have a width of 2 slots. Is simply bigger but it connects to the rack via one connector. The 4th slot reads HDD because there is a hard drive mounted on that slot to back up the PPC. The multiple CPU's setting has already been done. I just want to switch the old PPC with the WinCPU.  I loaded the software to the PLC CPU and have done the modification on my test rack (I don't have the luxury of having the machine here to try it out on it and I want to inform myself about possible issues I may have on the field. No errors occured and the WinCPU runs as well as the Q50UDEHCPU.  I contacted my Mitsubishi Rep but here in Romania he informed me that they have not sold a single WinCPU or PPC from his knowledge. (I received mine straight from Japan). My follow up question is, if i leave the I/O assignment the same and just put empty where the HDD was (WinCPU has CF Card for back-up) will it affect my program? 

Hi guys, I want to create a small pop up message in my HMI and PLC software when the bettery is low to inform the operator that it needs to be changed. For that I plan to use SM51 and SM52 (one turns on when the voltage drops and turns off if it comes back up and the other stays on if the voltage drops one time and the battery is not changed). I have a Q50UDEH CPU in my office and I want to run some tests. I want to remove the battery while the CPU is running and then connect it back again. Can I do this or are there chances for the CPU to break? (i know it's kind of a stupid question because if the battery dies it does the same thing but I just wanna make sure). Thanks

On the CPU there is a sticked that sais to replace the battery within 3 minutes. So in order to change the battery without loosing the program I suspect the only way is to do it while having the power ON.  Thank you guys :)

Perfect. Thank you so much!

Hi guys, If I have a project that is designed for a Q50UDEH, will it work for example if I change the PLC type to Q100UDEH and write it on that type of PLC? I am trying to determine if by change the Q50 will go out of production, can I use the same software (with the PLC type changed) and pass to another Q family CPU (Q50 replacement or Q100)?

Is this available for all the Q series CPU's? Only the programming memory changes? They all support the same commands and functions?

Is it possible to compare two projects? One is old and written in GX Developer and one written in GX Works 2. If not how can I convert the old project into a GX Works project in order to compare them?

@Gambit Is there a way to export a file containing all of the variables used in the SW? Or only manually write them down? I want to create a list of memories used to see which are free to use in case of modifications.

Huge help as always. Thank you very much @Gambit

@Crossbow Sorry for the mistake. I'm not familiar with the Mitsubishi Range but I have some experience in filling machines. For 4-6 ml bottles he needs either an extremely well timed output  for the filling valves(that sometimes will work properly and sometimes not) either a  PLC with a very accurate flow meter that will cost a huge amount of money.

You can put M1 and M2 in parallel (OR) to PLS M4 and after that M1 MOV K20 D1 and M2 MOV K30 D1 on separate lines. In this way you will remove the double coil error and It will work in the same way.

In order to control the filling part you need a flowmeter that gives a high frequency signal in order for the PLC to calculate how much liquid is going into the bottles. But a precise one will cost quite a lot. I'm not familiar with Mitsubishi PLC HW to know it your PLC is compatible or not with HF input signals.

If you have a word D0 for example that's 0000 0000 1111 1111 SWAPP works like this: M0 ------------------------|SWAPP D0| Every time M0 turns on the first 8 bits in the word switch places with the last 8 bits. So after a pulse D0 is 1111 1111 0000 0000.

I'm expecting a GOT 1000 to arrive from Mitsubishi. Does it include the programming cable or does that come separately? GT1658M-STBA Thanks

I managed to upload the software to my Q50UDEH. Now I have another problem. I followed the procedure. Now I have two errors. Can someone help me with them? 

I found the issue. I had a serial communication module that was missing. Just change places with one I did not sent TO/FROM commands to and restarted and now it works. Thank you @Gambit. You've been a huge help as always.

I didn't scroll down to see all of the buttons. Did that and now I have rewritten the SW onto the PLC. That Error has disappeared but now I have another one for another missing module for RS232 comm because I have a TO U9 instruction in the SW. That I can see is a problem but error 7000 is still there. Do you know why?

I'm Doing something wrong. How do i delete it. I keep putting blanks and spaces and it reappears. 

From the I/O setting or from the CC-Link network parameters?