Sergei Troizky

MrPLC Member
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Everything posted by Sergei Troizky

  1. Sysmac Studio 1.22

    All posters: Mentioning the OS would make big sense in such cases!
  2. Half Screen when app is opened.

    Tried it. No result.
  3. Half Screen when app is opened.

    Same problem, but no such menu option in the v9.45. No matter the Information Window being On or Off.
  4. So, here is a knife to the Beijers back- a simple and inexpensive programming cable for Mitsubishi FX series, to be used instead of SC-09. The cable is successfully used with FX0N, FX1N, FX1S, FX2N. EDIT: According to repeated complains this cable may not work with FX0, FX0S. The connectors on the diagram are 8-pin mini-DIN male on the PLC side and 9-pin sub-D female on the PC side. Take measures in order for the PLC pin 5 (+5V) not to be shorted with any other one in order to prevent the PLC or PC port damage. For AC powered PLC, the requirement to avoid phase conflict by powering PC from the same AC phase remains in power, exactly as for the SC-09 cable. The difference is that in a case of phase conflict at least cable is not damaged now.
  5. After changing the computer name, I cannot configure the RSLinx Enterprise communication in Factory Talk View ME Studio projects. It says no such computer in the Factory Talk directory. How can I fix this?
  6. What is the Use of Number data type for CJ2 Omron PLC?

    In other words, a Number type data is a named constant.
  7. From my experience, the mentioned error will appear if there is another session of the CX-Programmer running, with transfer-related dialog box active. Even if the transfer (upload or download) is already finished, and the dialog box is only waiting for OK. Or, when the CX server stops working. In such case, the CX-Programmer restart helps.
  8. I want to install and run the Rockwell software on new Win10 PC in the Oracle Virtualbox VM. However, my Factory Talk activations are tied to the hard disk serial number. Tried to change the VM hard disk serial, with couple utilities, but no success. Any suggestions?
  9. Motor Offset or Controller Offset?

    CompactLogix with integrated motion. Hyperphase absolute encoders. There are the Motor Offset and Controller Offset options in the Axis properties/Motor feedback. The manual says "in the most cases it would be the controller offset", however does not explain when and why. Could anybody explain the difference and the preferences.
  10. Motor Offset or Controller Offset?

    So many unnecessary technical details, and still absolutely unclear when and why use the controller offset or the motor offset.
  11. CP1H-XA "Failed to connect to the PLC" with USB

    500ms?! What may be such an application? I've tried this on a live CP1H, and it indeed falls into communication error. But, after changing the USB Respone Timeout from the default 2s to 20s, I was able to communicate and revert everything back. However, the responses were SLOW. Expect almost a minute delay between every mouse click and its result.
  12. CP1H-XA "Failed to connect to the PLC" with USB

    What did you change the constant cycle time to? And can you afford wiping off the entire controller content?
  13. CP1H-XA "Failed to connect to the PLC" with USB

    I have seen couple CP units with the USB port damaged by 24V due to wrong wiring. The incident may be instantaneous; the wrong wiring may not be there anymore. I used a communication adapter board in such case as an alternative port, e.g. CP1W-ETN61. 
  14. CP1H-XA "Failed to connect to the PLC" with USB

    This confirms the PC port is OK, but not the PLC's.
  15. CP1H-XA "Failed to connect to the PLC" with USB

    How do you know that? Meaning the PLC port.
  16. Celsius to Fahrenheit

    Why bother switching? I would calculate and display both.
  17. Simple programming cable for Mitsubishi FX

    That's right. The SC-09 retailed for $200 at the time.
  18. Logix5000 alias information

    What is this (C) on the attached picture, in the Alias line?
  19. OMRON PLC with Modbus TCP/IP

    I've used couple times the CP1W-MODTCP adapter board with CP1H. It can be a master or a slave, and supports read and write commands, but not the combined read/write command.
  20. Detect wire break on omron absolute encoder

    Then, the most straightforward way is to utilize the major property of the Gray code: any transition may be in a single bit only. Compare every new value with the previous one for changed bits. If more than one bit changed simultaneously, the  sequence is abnormal, and may indicate wiring problem. However, the method assumes reading of every change. If the lower bits are too fast, use interrupt, or simply exclude them, and verify at least the  rest. The lower bits can be verified by some other method.
  21. Omron's syswin software

    Probably, it's a matter of opening existing project files, not the supported PLC models.
  22. Detect wire break on omron absolute encoder

    Milosh, is it important to detect a broken wire as soon as possible, that is after one full turn, or you can afford several full turns before it is detected?
  23. Detect wire break on omron absolute encoder

    Does the encode make full turn during operation?
  24. CP1L CNTR Function, Increment is reseting the count

    The preset is the word CIO4 and its value is 0bcd, which is monitored under the address.  In Omron, the CIO prefix is omitted for the CIO addresses, and they look like numbers, which is confusing the beginners.
  25. CP1L CNTR Function, Increment is reseting the count

    Manual W451 Basic Operation of CNTR(012)/CNTRX(548): The counter PV is reset to 0 by turning the reset input (CIO 0.02) ON and OFF. The PV is incremented by 1 each time that the increment input (CIO 0.00) goes from OFF to ON. When the PV is incremented from the SV (3), it is automatically reset to 0 and the Completion Flag is turned ON. Likewise, the PV is decremented by 1 each time that the decrement input (CIO 0.01) goes from OFF to ON. When the PV is decremented from 0, it is automatically set to the SV (3) and the Completion Flag is turned ON. And by the way: do you realize that your set value "4" is not a value but an address?