Davids

MrPLC Member
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About Davids

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  • Country Malaysia

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  1. Compare Barcode for S7-300

    Do you have any SCL or STL sample program for this? Hope you can help me for this. thank you.
  2. Compare Barcode for S7-300

    Thank for your suggestion. That will be a very good suggestion. Do i need to write in STL to make it happen?
  3. Compare Barcode for S7-300

    Hi, i need some guide on how to compare barcode that data type is CHAR? Any programming language also possible. The second barcode received will compare with first barcode. if the barcode is match, then i will prompt user to re-scan. thank you.
  4. Anyone know how to convert Floating Point number to mantissa and exponent for S7-300? Example: Float Number : 15000 / 0.0045 Mantissa : 1.5 / 4.5 Exponent : 4 / -3 Any formula to do this? thank.
  5. Q62DA Question

    anyone of your using Q62DA before. hope you all can answer my question. when i enable the conversion for the DA, although analog target value is 0 but i able to get 1.86V at the terminal. while if i set analog target value to 4000, i will get 9.56V. in this case, do i need to do offset for the channel? if i change the offset point, i set analog target value to 4000. will it give 9.56V? do i need to adjust the gain too? thank you.
  6. HoneyWell PLC

    hi, anyone here use HoneyWell PLC before? what is the programming software that use for this PLC and HMI? i can't find any information. i'm not sure what is the model of PLC and also HMI yet. I just want to upload the program from PLC and HMI before i shut down my machine for upgrade. if anyone have link to download the software, please let me know. thank alot.
  7. FBC instruction

    Hi all, i do like to have some advice for this FBC instuction. i'm still confuse after study the manual. please give me some guide for it. will be better if have sample program. the reason i use this instruction is i can always checking the 6 out of 12 wafers reject condition. Thank.
  8. Ultra3000i Parameter Setting Problem

    from the AB example i do understand how to call motor to index and fault handler but i dont understand how PLC know communicate with driver as it no point out which assembly it using. The source is a decimal(INT)? just the destination can be INT, DINT, float or anything in order to decode the message? thank..
  9. Ultra3000i Parameter Setting Problem

    ok.. thank alot. i will try with that now.
  10. i have meet some problem on how to define feedback data value of ultra3000i drive via deviceNet. for example in the manual: feedback data pointer||Name||Parameter Object Instance||Data Type 10||Position Error||133||DINT can someone show me some sample on how to read the data value feedback via PLC? FYI, i'm using Compact Logix L31 PLC with 1769-SDN devicenet. thank you.
  11. FX2N-48ER hardware failure?

    yes. i have 24VDC provided to controller at input. what problem will it be?
  12. FX2N-48ER hardware failure?

    Hi, i have some problem with FX2N-48ER. This controller are installed at machine are more than a year, but today suddenly all it input point LED are no ON. I try to short it to any input point but result still the same, all input point are no ON. In GX Developer, i also can't see the input ON although i try to short it. is that the controller malfunction? or anything to it? Please give me a hand for this.
  13. "link card error" message pop up during Melsecnet(II)/10/H diagnostics. Does this cause by card malfunction or others reasons. i can't find any user manual or error list solution on web so i would try to ask here. very thank you.
  14. dont know i post at the right place or not, if not then mod please delete it. as title above, an automation programmer need what knowledge or skill to make success? any suggestion are welcome. thank.
  15. Some programming Question

    sorry for giving insufficient information. the whole process is like this... 1. the operator will put in the chip into the tester. 2. operator needed to key in how many pin does they want to check. 3. after the setting is complete, then operator press start to start checking 4. when in checking process, the tester will check all the conductivity of each pin. (conductivity test by 0VDC through pin and back to PLC input) 5. if all the pin pass all the pin test, then the chip is OK. if one or more of pins are checked fail then the chip will be reject and a 7-segment display will show which pin is reject. 7-segment display will display one pin fault each time. operator needed to press reset button to check for another fault pin allocate. hope this time i can give all the relate information. THANK...