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About cHud

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  • Country South Africa
  1. Do you have the installation manual? Just google it and you will see the different wiring diagrams for it. Also get the programming manual. Cant remember exactly where the parameter is but there is a setting to specify the application duty class. Think the lowest is class 10
  2. You can use unity loader (free) which is just used to upload and download program to a cpu. But you will at least need UNITY Pro S to go online with cpu. S being the cheapest version of the Unity software, only allowing you to communicate with M340 plcs. You get Unity Pro L and Unity Pro XL. You will need a standard usb to mini usb (5pin) cable. Also  usb driver is needed but is installed with the programming software
  3. What are you using to communicate with the tesys? Io scanning or read_var write_var function blocks?
  4. Pl7

    Hi this cable is not obsolete....yet... In fact it is still used not only for plc's but for connecting to drives via modbus and other devices   Think the part number is tsxcusb485. This is for the convertor to usb. You still need another cable that goes from rj45 to min-din( for pl7 plcs)...cant remember this cables part number
  5. You can only do io scanning with NOE or NOC cards. Just type in google m340 read_var and you will get enough info
  6. Insert Image pool object under the controller in the application tree. Then add images in the pool. Then in the visualization insert an image object and select from the image pool
  7. Just a sidenote. This is somachine basic. Not to be confused with somachine
  8. Have you tried searching how to sync clock for codesys. There is a lot more material for codesys on the web
  9. You are going to have to find in the program where they write to %mw1840. Should be an input triggering a increment on the word. Then trace the wiring from that digital input to the field. That is all i can suggest at the moment
  10. That is grafcet. This code you showed is a transition between two steps in grafcet. I %i7.0 is true then the grafcet will move from step 3 (%x3) to step 4 (%x4) What increments or decrements your counter?
  11. a lot more detail is needed. And it sounds like this is a programming issue. 
  12. I would try downloading the latest version of unity loader. Then connect via that to see the version of unity used inside the cpu. Might be that you are on a different version of unity.
  13. 1st close pl7. Then connect cable to pc and plc. Set cable to multi If you plug in the cable go to control panel-------system----hardware---and look if driver detected cable in ports Then go to windows start----schneider electric (or modicon on older software)------drivers manager Then click on unitelway driver--------configuration-----select the default and edit Select the com port. It should have the cable name next to the com number and showing ready. save apply and driver should reset Open pl7 and try again  
  14. Here is some links to pdf manuals that should be usefull In the link below change the filter to technical publications. There are a lot of user guides for somachine there