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About collinsd70

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  1. M7 486 SIEMENS cpu

    You will need to study the hardwares structure and programming syntax.  Without your program- this is near impossible to figure out.     Regards   Daniel
  2. Melsoft Series GX Develop Error

    If you are opening this directly from windows explorer...make sure you are opening the right file (from memory there are a .gpx and a .gpxx file) this error normally happens when you open the wrong one. Alternativley upload your program and I can check for you.     Regards Daniel
  3. A2AS to E700 comms issue?

    Hi Dunc. Sounds like very odd behavior to me, maybe try a standard ROM format? then reload the program? Make sure if you are using retentive memory- that you backup the device registers.     Regards Daniel
  4. GX IEC Developer, can't open any project

    Hi pappaleif. Sorry, cant say ive ever seen this error (ive used this software for 5-6 years). All I can think is maybe there is a conflict with Windows or something (maybe try a system restore?) Otherwise the only other option you have is to run GX IEC in a Virtual Machine (I run all my software in VM's for these exact reasons).     Regards Daniel.
  5. mitsi q series ethernet qj71e71-100

    Hi John. You are referring to a Melsec NET/H Connection which is normally a fiber loop, the older Melsec Net/10 was a coaxial cable. From memory- the MELSEC NET protocol is a little more robust and is easier to send large packets of data between various controllers. HOWEVER- the QJ71E71-100 does have the capability to read and write to other controllers- but it does not work the same way. The amount of data will depend on the communication method used and whatever Words/ Bits you send; will need to be fed to the input parameters. What hardware are you using (CPU)?, what software are you using? what is the data size you wish to send/ receive between controllers?, is it just 2 controllers that this communication needs to be established with? I have the FB's you will need- but "which one" totally depends on the requirements of your application Regards Daniel
  6. Speed in meter/mint

    If you have 800 increments the "resolution" will be very low- so you may have to calculate over a larger time base .   Regards Daniel.
  7. Speed in meter/mint

    So 800 increments = 1 Metre of Travel. Capture number of increments over a set period of time. You now have a time and distance, now you just need to get everything into metres/minute. -Set this as a high priority task (10ms) if possible. -You need to account for overflow in your code (32,767) -Your final value will be a REAL, so you may need to take your inputs and convert to REALs in order to complete the calculation.     Regards Daniel.  
  8. Speed in meter/mint

    So I would work out how many encoder incrments you get per metre of travel....this will be your scaling factor. You can do this manually using a trap- once you have this count write it down. Then you can capture your increments in second intervals- and apply the scaling factor to get your travel per minute.   Regards Daniel
  9. Speed in meter/mint

    Circumference of the shaft is not relevant to conveyor travel unless you work out the ratio between them- this is the value you need to calculate, either by Encoder Increments of another form of Conveyor Speed. What feedback devices have you got to work this out?    Regards   Daniel
  10. project allen bradley

    Youtube is also another brilliant free-source of training documents for things like this.   Regards Daniel
  11. Speed in meter/mint

    Hi Areeb. You can do this by 2 ways- use 2 static values such as a speed frequency or inverter speed and work out how many rotations it gives you per minute- then you can work out a scaling factor using conveyor travel. If you are using incremental encoder for example- work out number of increments per meter of conveyor travel (maybe use some trap software for this). Then you can measure number of increments per (increments over 10 seconds x6) /Scale Factor= Speed in Meters per min. You can modify the forumla or optimise depending on your system requirements.    Regards Daniel
  12. How to solve problem with MMC

    You can use the S7Writer above in conjunction with a blank image file. The alternative is to put in a CPU and power on- select "run" then hold switch in "res" position- once stop light stops blinking quickly release lever and push back to stop. Once stop light stops flashing- memory card has been cleared.     Regards Daniel
  13. Keyence / proface

    Hi Choi07.   It sounds to me that you have lost communication with the PLC. Have you checked cable connection and wiring status? is the PLC running?     Regards Daniel
  14. Salvage PLC to play with, but...

    Hello BornHandy. I believe there is a trial version of GX Developer that is free for a fixed amount of time/ steps. You will have to browse the web for this as its not something ive ever had to do. Just a heads up- if you are using Q00J, Q00, Q01 or Q02 (not Q02H) will also need to buy the serial lead to communicate with the PLC. Otherwise a standard Printer Cable can be used in conjunction with the EasySocket driver.   Regards Daniel
  15. Error when downloading hardware configuration

    Hi PaulKim1003. This error regarding device name in use suggests 2 or more DP-slaves have the same name. You can check this by checking your offline configurations- if you have not altered the program; maybe there is a change point somewhere in the field.     Regards Daniel