pinguinjkeke

MrPLC Member
  • Content count

    17
  • Joined

  • Last visited

Community Reputation

3 Neutral

About pinguinjkeke

  • Rank
    Sparky

Profile Information

  • Country Russia
  1. FX3U Modbus communication

    Hello again. I successfully read 201 register and tried to write 102, 104 parameters and it's successfull!. But I can't read and write to system environment variables 40002-40015. I still getting 212 modbus error. Tried both write commands H6 and H10. Don't know what to do with it
  2. FX3U Modbus communication

    201 and 202 returning 0
  3. FX3U Modbus communication

    I read examples from FR Configurator SW3 and have a succsess reading Pr. 41004! LD M8000 ADPRW H1 H3 H3EB K1 D0 0x3EB = 1003. We counting from 0 so 1003 - the 4th parameter. I tried to read other parameters and all success! LD M8000 ADPRW H1 H3 K1001 K1 D0 - returns the Pr. 2 But I can't read 40014 register. I tried K13, K14, tried convert it to hexademical - no success. ADPRW H1 H6 K13 K4000 D1: tried to write to register and still no success.
  4. FX3U Modbus communication

    D8422 = 212 (Exception response error) Don't understood what is it. D8423 = 770 D8424 = 44 And I don't know how to read other codes. It isn't described in FX3U Modbus Manual.
  5. FX3U Modbus communication

    Nothing happens when I changing K14 to K15. There is a problem with communication settings, I think. But how to recognize the full error?
  6. FX3U Modbus communication

    I set 550 to 2 as you said earlier. I can set NET mode only via FX Configurator SW3. Or there any other ways to do it? And I'm recieving E.PUE error on the inverter and I can't use the PU/EXT button.
  7. FX3U Modbus communication

    Ok, I set this parameters and still nothing. It doesn't going to NET mode. I tried to connect inverter over USB to PC and set NET mode manually and I recieved the E.PUE error.
  8. FX3U Modbus communication

    Thats all parameters I changed. Should I set any other parameters?
  9. FX3U Modbus communication

    When I using connection scheme: SDA->RDA SDB->RDB RDA->SDA RDB->SDB SG->SG Both RD and SD LEDs on 485ADP are blinking. When: SDA->RDB SDB->RDA RDA->SDB RDB->SDA SG->SG Only SD is blinking 1 time per second and inverter could show PS at any moment. But with both methods even when inverter started locally I can't read frequency. I'm starting inverter, clicking PU/EXT to switch to PU mode and then START button I think that the first connection method is right. Inverter parameters: Pr. 117 PU Communication station nubmer: 1 (Is that parameter will be Modbus station number?) Pr. 118 PU Communication speed: 192 (19200 bods) Pr. 119 PU Communication stop bit length: 0 (means 8bit operation with one stop-bit) Pr. 120 PU Communication parity check: 2 (With Even parity check) Pr. 123 PU Communication waiting time setting: tried 9999(by the data recieved) and 10ms like in my program. Pr. 124 PU Communication CR/LF prescence/absence selection: 0 (without CR/LF) Pr. 549 Protocol selection: 1 (Modbus RTU)
  10. FX3U Modbus communication

    I can't do that cause if I remove BD there will be no place to mount 485ADP. I have no any other adapters. I tried to swap SDA-SDB RDA-RDB. Now RUN LED on the invertor is blinking and PU is blinking but slowly and invertor shows PS code (engine stopped by remote panel) And should I configure CH2 in "PLC Parameter" section in the GX Developer? It's configured now, but I'm not sure it's right. I tried many variations of this params, but it makes no result. And what about resistor of the 485ADP? As far as I know I'm using two-pair connection and I should set it to 300 Ohms?
  11. FX3U Modbus communication

    No success. Firstly, I found error in program. I used 8402 error register instead of 8422. D0 is always zero when I'm executing LD M8000 ADPRW H1 H3 K14 K1 D0. Maybe I have problems with wiring? The connector is done by this scheme and connected to invertor. White-Blue: RDA Blue: RDB White-Green: SDA Green: SDB White-Brown and White-Orange: SG (Also tried to connect only one of this two to SG and getting the same)
  12. FX3U Modbus communication

    This is my program. I'm using online monitor with my FX3U. As you can see M8029 is off and it means command not completed as far as I know. EDIT: M8029 blinking 1 time per 3-5 seconds.
  13. FX3U Modbus communication

    Thank you for so fast and so informative reply. I tried to do that and both 485-ADP's RD and SD LEDs are ON now. But my program still gives no signal to Y0. Is my program right? And I don't understand how to send Engine start command to inverter with FX3U via modbus?
  14. FX3U Modbus communication

    I have FX3U16MT/DSS base module with FX3U-485ADP-MB connected to the left side of it. Also I have FX3U-RS232BD, so the channel of ADP485 is 2(Am I right?). I'm connecting FR-E720S-030SC to FX3U-485ADP-MB via invertor's RJ45 port with cable I made by this scheme: I don't understand: SG should be connected to SDA or input "5" on invertor? Should i put both SG1 and SG7 grounds to SG on 485ADP? I configured my invertor with FR Configurator SW3 for modbus and set station number to 1. (baud 192, stop bit 1, Even, response time 9999, no CR/LF, proto 1(modbus)) I wrote a test program with no success: LD 8411 MOV H1097 D8420 MOV H1 D8421 MOV K2000 D8429 MOV K400 D8430 MOV K10 D8431 MOV K3 D8432 MOV H1 D8435 MOV K100 D8436 LD M8000 ADPRW H1 H1 K0 K4 Y000 I think that Y0 should be open after command execution but it doesn't. On program execution I see only 485ADP's SD lamp blinking one time per second.
  15. FX3U Basic connect cheme

    Thank you for fast and informative reply. Now it's all working.