T J SHARON

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About T J SHARON

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  • Country Singapore
  1. OMRON CJ2M-CPU13 - SCU32- Communication

    HI,  I still didnt manage to get it done.  The values are fluctuating ( like 6555**, FFF** etc) during open circuit and potentiometer is low resistance. And values remains 0 during open circuit and potentiometer at high resistance(no fluctuation).   My 8 AD channels are sharing  power suppply. DO i need connect anything to AG terminals. Appreciate all  help and suggestions.   thanks    
  2. OMRON CJ2M-CPU13 - SCU32- Communication

    Hi,  Thanks a lot for the suggestions. 1)For the ADs i used IO table to setup changed CH1-8 to enable and 0-10V in (All  voltage/current hardware dip switch set to  off). I am not sure whether any open circuit static V or anything like that. ( wiring attached, Blue color cable to 0V. A5 & B5 are NC). 2) For the data writing issue, i checked the CPU1 side D100, very stable and no issue.  But  at CPU2 side, i can see the data fluctuation in D2000 . Seems like Before transferring is ok and d2000 is overwriting only after receiving. scu32_TEST.cxp  
  3. OMRON CJ2M-CPU13 - SCU32- Communication

    Hi,  I manged to establish the communication after adding a end code. Is there any problem if i use 'FF' as start code and FE as end code.? I can receive the data now.  but i have 2 issue now. After uploading program, need to power cycle the receiving SCU32 , then only 1534.06 works. Is it common or i miss something like restart bits? ( program remains same as previous posts) i am transmitting D100-108(D100 is DI, D101-d108 are AD) data to receiver's D2000-2008 memory (18bytes).  My analogue input  in TX side fluctuates from 0000 to 655XX if not powered, so the Received data in d2001 -d2008 follow that fluctuations. During this time some bits in  d2000  also activating, seems somthing is overriding my data.  is there any chance that d2001 data can override d2000? THANKS A LOT  T J SHARON
  4. OMRON CJ2M-CPU13 - SCU32- Communication

    thanks  a lot for the reply.  To have a better understanding, i am adding up some more info below. Surface rack - CPU1 ( CJ2M CPU13) + SCU32 (unit0 port1, 4 wire & terminating resistance on)  MCP RACK - CPU2 - CPU2 ( CJ2M CPU13) + SCU32 (unit1 port1,4 wire & terminating resistance on) Connection via 2m twister pair Wiring, setting and program as shown  in pic.   SURFACE-NewProgram1-TXDU.pdf scu32_TEST.cxp
  5. OMRON CJ2M-CPU13 - SCU32- Communication

    hi ,  i have some issue, I tried communication between two SCU32s. But the RXDU is not updating constantly. I have used the below ladder diagram. Is it correct? ( the note says NO of  A202.03  AND NC of n+9 .06, but ladder is different?) No i am confused. Also what is logical port  ( "3"in the control word#31120001 ) and what is the purpose.?
  6. OMRON CJ2M-CPU13 - SCU32- Communication

    thanks a lot 
  7. OMRON CJ2M-CPU13 - SCU32- Communication

    HI ,  I am doing on the memory adresss allocation now and i would to check whether the Wxx.xx memory can be transferred from PLC to PLC. Or should i move to D and CIO memory?     thanks a  lot.
  8. OMRON CJ2M-CPU13 - SCU32- Communication

    Thanks a lot gt support   thanks a  lot.
  9. OMRON CJ2M-CPU13 - SCU32- Communication

    Thanks a lot micheal, Does"no protocol' work with 1000m cable? Do you have any sample code or video?   thanks a  lot.
  10. OMRON CJ2M-CPU13 - SCU32- Communication

    thanks michael.
  11. OMRON CJ2M-CPU13 - SCU32- Communication

    thanks alot   
  12. OMRON CJ2M-CPU13 - SCU32- Communication

    hi gt support,  Thanks a lot, Yes. I have the  SCUs. SCU32. Ok. Do we need an adaptor for serial port to rs485 if am using the serial port in CPU? If we go with SCU-SCU, can i use HOSTLINK?    
  13. OMRON CJ2M-CPU13 - SCU32- Communication

    hi gt support,  Thanks a lot, That was the initial plan. But we have to use CPU serial port for HMI. That is the reason we are planning to add SCU32.  Which Protocol would be the best to use to connect two SCU32 via 1000M
  14. HI ,  Thanks a lot for the reply & help on previous topic. Now i setting up a new system with 2x CJ2M CPU13  and 2x SCU32 and the connection via 1000M RS485 cable. May i know the best communication to use for the serial communications?   Regards, TJ SHARON.
  15. OMRON CJ2M-CPU13 - Serial port communication

    thanks a lot