BITS N BYTES

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About BITS N BYTES

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  1. Controlling mx2 inverter without modbus

    Don't give up so quick. One of these [or similar product] would easily solve your problem. https://www.asi-ez.com/member/~XNPNPNP.asp?
  2. Controlling mx2 inverter without modbus

    Looking at the RP input in the MX2 schematic it would appear that it only accepts a Sinking input signal. To work with a CP1L-EL it must have Sinking Transistor outputs i.e. CL1L-EM**DT-D Providing you have a Sinking Transistor model, you have wiring correct between PLC output and MX2 and high speed output is pulsing you should be able to monitor this signal on the MX2.  
  3. Controlling mx2 inverter without modbus

    Those instructions are typicallu used for positioing. If you are just controlling speed use a combination of Continuous Mode [Speed Control] instructions SPED, ACC and INI. See Section 7-2-4 in manual W516. Pin RP = Pulse input on MX2
  4. Controlling mx2 inverter without modbus

    Use standard outputs from the PLC for Start/Stop/Reverse signals to the MX2. Use a High speed pulse train output from the PLC to the RP Pulse Input on the MX2 to control speed.
  5. CX Programmer Problem. Willing to pay via money transfer!!

    St Patrick's Day and copious amounts of Guinness must have fuddled your brain! Sober up and try working it out for yourself. We are here to help those that help themselves. OTHERWISE send me $25 per step of code. Approx $25K total and I'll do it for you!!
  6. Using PTO's to control multiple stepper motors?

    AND read this article. Though written for a CJ1M the principles are similar to your model. http://forums.mrplc.com/index.php?/files/file/268-cj1m-motion-and-interupts-quickstart/
  7. Trouble connecting from PC to CP1H-XA

    DIPSWITCHES ON SW4 or SW5??
  8. Limit

    This isn't an AB test of how they DO THINGS. Rather OMRON has a unique [yet different approach]. IMHO much easier to use. For example:- A simple oneshot up differentiation condition requires NO stupid extra bits to manage, just a change in the examination of the bit with an upward symbol. See here:- http://www.plctalk.net/qanda/showthread.php?p=620324#post620324
  9. D memory data not moving into instructions

    Try setting the PLC properties to "Execute_Timer/Counter as Binary". You must first send new settings to PLC and then perform power cycle.
  10. D memory data not moving into instructions

    Hint!! If you need to initialize D memory values at power up it is much simpler to define a TASK that runs once on first scan to write necessary values to D memory. So each time PLC is powered up the required values are initialized. Create a new task named FIRST_SCAN. I would suggest Cyclic Task 00 (Startup). The last instruction of this task should use the always ON flag CF113 followed by TKOF 0. Everything in this task will then be written to desired memory only once. So stop messing with LCD board and use tasks to initiate values you need in your program.
  11. D memory data not moving into instructions

    Are you bothering to read the manual?   CP1W-DAM01 Pages from W462.pdf
  12. D memory data not moving into instructions

    Pretty sure you need to define a SETUP screen with the D memory you wish to monitor/modify. A setup screen allow configuration of the FORMAT and DATA LENGTH [1 or 2 words] that will be displayed. See section 8-6 page 502 of manual  
  13. Limit

    The LMT instructions uses a group of boolean "condition flags". These change state immediately after the instruction is applied. Read section 1-2-1 in the manual W451-E1-03 for an explanation of how Condition Flags are used.
  14. SCL3(487)

    TRY HERE   http://forums.mrplc.com/index.php?/topic/30950-proble-with-scale-function-in-cp1l/#comment-145675
  15. Using PTO's to control multiple stepper motors?

    Whenever you execute ANY pulse output instruction in the PLC it will always assign two outputs. Either {PULSE + DIRECTION} or {PULSE CW and PULSE CCW] depending on the configuration you use in the output instruction. Even if you are only moving in one direction using just PULSE or PULSE CW the second output is NOT available as a standard output. If your PLC is model CP1L-EM**DT-D then outputs will be Sinking Transistor. If model is CP1L-EM**DT1-D then outputs will be Sourcing Transistor. Since only two pulse train outputs are available on this PLC and you are trying to control 7 axes it will be quite the challenge to manage all of them using relays to switch PTO signals to each drive.   GOOD LUCK.