BITS N BYTES

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About BITS N BYTES

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  1. Controlling heater element with PWM

    That code only addresses PWM Output 0 at 200Hz with a 50% or 25% duty cycle. Physical output is 2961.4 = Output 4 on the right hand MD211 [Closest to PLC]. "I don't see anything! Or where I can see this pwm signal? " THIS WILL NOT WORK IF YOU ARE USING SIMULATION MODE IN CX PROGRAMMER OR IF YOU ARE USING 2961.4 AS AN OUTPUT ANYWHERE IN YOUR PROGRAM. You must have physical PLC and MD211 with downloaded program to "SEE SOMETHING"!
  2. Controlling heater element with PWM

    PWM can only be used for outputs of MD211/212 Pulse I/O module. Not possible with OD212. You say "I read in documentation about Pwm but is a poor explication about this problem." What documentation are you using? It is very clearly explained in the Instruction Reference Manual W474 and Pulse I/O manual W486. Do you have these? Here are links:- https://assets.omron.eu/downloads/manual/en/v3/w486_cj2m-md21_pulse_i_o_module_users_manual_en.pdf https://assets.omron.eu/downloads/manual/en/v3/w474_cs_cj2_nsj-series_plc,_sysmac_one_nsj_series_reference_manual_en.pdf    
  3. Read position from rotary encoder

    Port Specifier should be #10, #11, #12 and #13. Control Data should be #0 in all cases.
  4. APR - OUTPUT VALUE

    The example I posted works correctly for the values you are asking for.
  5. APR - OUTPUT VALUE

      CP1L_APR_SCALING.cxp
  6. APR - OUTPUT VALUE

    This example for a CP1L might help you. http://forums.mrplc.com/index.php?/topic/30950-proble-with-scale-function-in-cp1l/#comment-145675
  7. Cx Integrator

    Simplest method! Don't need CX Integrator. http://forums.mrplc.com/index.php?/topic/36339-send-data-memory-from-plc-to-other-plc-with-cx-programmer/#comment-169499
  8. how to set up timer in st

    What is the model number of the PLC you are using? CJ2M, CP1L, CP1E............................ Structured Text timers or Counters can ONLY be used with CS/CJ series CPU units version 4.0 or later, or with CJ2-Series CPU units.
  9. Send data memory from PLC to other PLC with CX Programmer

    If you are using Serial Communications between the PLC's I would use PLC Serial Links for such a small amount of exchanged data. Requires NO programming in PLC! Attached extract is for CJ2M PLC but available in most OMRON models. Serial PLC Links.pdf
  10. Thanks for quick response and app. note. Connection via Serial as gtsupport mentions works just fine. But I really prefer to go with Ethernet if I can get it working. Attached are extracted pages from IDEC manual showing that the HMI "should" be capable of connecting directly to the PLC. Setup procedure in IDEC WindOI-NV4 is somewhat confusing and missing anything regarding the need to use CX-Integrator as IO_Rack mentions. Have contacted IDEC Tech. Support and await reply. Meanwhile I'll continue working with "Good Ole Serial" Idec Specs 2.pdf Idec Specs 1.pdf Idec Specs.pdf
  11. I am struggling to establish Ethernet communications between an IDEC HMI and OMRON PLC. Can ping both devices on the network, BUT HMI shows a communication error "ID:00h 0". Anyone have any suggestions how to resolve? Do I need to use CX-Configurator to setup a routing table, and if YES how to do it?   Frustrated/Confused.
  12. CP1L and timers in ST

    So how about showing us all how you did it? Sharing feedback on posts is one way of showing gratitude and helping other MRPLC members who may have similar problems.
  13. CP1L and timers in ST

    ST TIMER not supported on CP1L http://forums.mrplc.com/index.php?/topic/28706-timer-in-function-block-with-cp1l-e/#comment-136695
  14. Ethernet/IP to Profinet IO with CompactLogix 1769-L18ER-BB1B

    Feedback after project completion. The combination of a CompactLogix 1769-L18ER-BB1B and ProSoft PLX82-EIP-PNC worked like a charm. Pretty straightforward to setup and after writing an AOI allowed quick and simple connection and control of multiple Profinet devices. Only gotcha was figuring out that BYTE swapping was required on both input and output maps. The PROSOFT gateway allowed this change to be easily implemented vs. writing additional code in PLC. Couldn't be happier with the results!!  
  15. Produced/Consumed Tag Communications Active

    Thanks Ken, some of the tags in the producing PLC are AOI's. I don't currently have access to the test whether AOI's be included as a member of a UDT and successfully passed to the consuming PLC. Any suggestions/feedback most welcome!