Gambit

MrPLC Member
  • Content count

    2639
  • Joined

  • Last visited

Posts posted by Gambit


  1. Sounds like you have a problem on the one hand you could count the plates because then the amps are >8. However you expect some plates to go trough without being cleaned which means bruches are running idle so the AMPS won't get above 8. So counting the plates via the AMPS is impossible. Can't you just add a sensor which sees when a plate is at /goes into the Brush location.

  2. The read out of your analog signal is constant so wouldn't it be easier to generate an alarm if the analog signal is lower than 8 AMPS for a certain amount of time. For instance: ---|AND< D0 K8 amps|----------------(ST0 K.....)--- ---|SM400|--------------------------------(T1 K600)--- ---|T1|-------------------------------------[RST T0]]--- This program will reset the ST0 every 60 seconds but within that time it will count the total time that the signal was below 8 amps. By using a stored timer the timer will not go to zero when the timer is off. it will once it is reactivated it add on from the previous collected time. Remember by default stored timers aren't available in the system Q so you have to set some in the PLC device parameters

  3. Actually I work for the Distributer of Mitsubishi in the netherlands. The module is fairly new so we haven't done many projects yet. The biggest project we have supplied has about 40 MES modules and is growing. so far everything is running fine wihtout any problems. Our customer is very happy wiht the module and was able to implement the MES in record time. You can't do stored procesures with them yet. Hopefully this will be improved in future versions. The best thing is it's so easy anyone can do it even if you do not have any SQL experience. Why not ask your distibuter for a Demo.

  4. Citect will tell you to use CitectSCADA Reports for this. There are some tools on the Citect website which will convert trend files to CSV. When you have the info in excel you chould be able to make some simple reports

  5. If you are using a Mitsubishi system Q there is a module called the QJ71MES96. It will connect to serveral databases and is very easy to program. It also has a FLASH card which will buffer the data when to connection to the database is lost. you can connecto it to ACESS MSDE oracle MS SQL servers etc. Also If you're not using a Mitusbishi PLC they've also included this feauture in there ethernetcard for there HMI panels which can connect to most PLC's.
    1 person likes this

  6. I was trying to use a counter with the minute pulse bit (m8014) but i need the same non-retentive operation of a timer. Can't you reset the counter when needed?

  7. The answer is easy when you want an instruction to use double registers you add a D in front of the instruction in this case DIV => DDIV. The same applies if you want an instruction to be activated once on the rising edge. then you add a P on the end DIV => DIVP or both DDIVP In the basic programming manual one of the first chapters shows you all the varients you can use

  8. Let me put your mind at ease GDII is the package whitch will replace both GX Developer and IEC developer. It's part of a bigger software suite. It's already being used in Japan by large customers . I have one of the beta versions and it lookes ok. unfortunately this version is only for system Q. This PDF will give you more of an idea what Mitsubishi is working on. some of the improvements are multiple communication connections security special Function module in navigator not under tools no setting in I/O assiginment required setting are made via drop down menus instead of 0000100010100 on install for GD GX Sim and config tools simulator start in few seconds etc newsletter_119.pdf

  9. You've deleted your second I/O server???? both primary and standby I/O Device are on the same I/O server now. The settings should be more like the attachment. TestRig1MrPLC.zip

  10. Via the kernel you can find out the status of the I/O devices. only one I/O device should be running. During comp setup you can select to use the kernel. Then during run use ALT space to go to the kernel