Wasan

MrPLC Member
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About Wasan

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  • Birthday 07/17/88

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  • Website URL https://scadaskill.blogspot.com/

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  • Gender Male
  • Location Bangkok
  • Country Thailand

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  1. How to create a programm for fx5u 4daadp analog output

    You should check module parameter as link below. https://gb3a.mitsubishielectric.com/fa/en/dl/11711/JY997D60501E.pdf
  2. How to connect multiple FX 3U PLC

    @danish202 You should check setting and cable by PLC connection guide manual as shown below at page 711 https://dl.weintek.com/public/PLC_Connect_Guide/eng/PLC_connection_guide.pdf
  3. Your Ladder means move(copy) data from D10 to D0 I recommend you to setup comtest bb Pro like this to start read data from 40000 address because I don't know that which your PLC start address that maybe 0 or 1 depends on manufacturer.
  4. @triee You need to scan Modbus address first. For your attach manual it shows that for D0 - D511 you need to use Modbus Address 0 - 1FF (40000 - 40511)  Then you should config Comtest BB Pro as shown as image attached. Then Change value on D0 or D1 then check what data do you receive. .
  5. @triee For use FX PLC to Modbus Slave you should check that how data from PLC (X, Y, M ,D) mapping to Modbus Address (40001, 40002, 40003, etc). Please shown us your model and link to manual to check how to setting it.
  6. @triee You should uncheck at RTS control and Reverse CRC. Then check communication format to use Modbus. Which RS-485 communication module that you use. Do you use chinese PLC board?
  7. FX Series Protocol

    @Jirrr If you need to communicate with FX PLC. I recommend to use MX Component that can use C#, VB.Net to commnicate with FX PLC and have example for coding.
  8. FX3U-CF-ADP periodical data logging

    @juanjosegp1 PLC don't stop during use timer. PLC use scan time to execute all instructions that not like use "Delay" function in programming software.
  9. QJ71C24N-R4: G.INPUT and G.OUTPUT

    @joseph_cs You should check these methods. 1. Check communication parameter (BaudRate, Data Bit, Stop Bit, Parity Bit) and then match setting in QJ71C24N-R4 and your device. 2. Try to use G.Output first then check by use USB to RS-485 on Serial Monitor software to check format that data send from PLC. 3. After that create G.INPUT sequence then use Serial monitor Software to send data to PLC. 4. Connect PLC with device and then test sequence. (Option) Use CH2 instead to connect data by disabled echo back function.
  10. FX3U-CF-ADP periodical data logging

    @juanjosegp1 You should have create timer 2 minutes and alarm conditions to trigger FLWR instructions.
  11. QJ71C24N-R4: G.INPUT and G.OUTPUT

    @joseph_cs Which protocol that your device use? If ASCII or non protocol you can use Nonprocedure protocol but if Modbus you should use Predefined protocol or use QJ71MB91 to communicate with them.
  12. QJ71C24N-R4: G.INPUT and G.OUTPUT

    If you need to use echo back function you need to use CH2. For CH1 you should write some insrtuction to check that data that you recieve are same as data that send if yes ignore them.
  13. QJ71C24N-R4: G.INPUT and G.OUTPUT

    @joseph_cs Maybe same problem with me.You should use echo back disabled in CH2  as link below. http://forums.mrplc.com/index.php?/topic/35280-qj71c24n-ch2-echo-back-for-modbus-rtu-predefined-protocol/
  14. FX2N 4AD2DA

    @BUJAR GASHI There are many manufacturer for these PCB boards. Please show us picture or model name of your PLC. You should check at this link below for PLC board that may be help you. https://www.xueplc.com/le3u-plc-controller.html
  15. Data register lost when power off

    @fat-chen Please tell us which model do you use. I will assume that you use FX or Q series For FX Series there are data register that latch with battery backup on some D register please check at programming manual for each model. For Q Series you can adjust range for latch data with battery (if it is new inbox battery is in install under CPU but not connect with connector) in example (D300 - D500) that you can adjust them in PLC Parameter -> Device.