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Posts posted by kratmel

  1. Hi, try this checklist:

    - wire swap A & B;

    - check - is it V700 and Energy Analyzer correct  in master-slave mode;

    - configure com port and disable all modbus send net. Connect V700 A&B wires to PC - Energy Analyzer RS485net.  Go to info mode and try monitor RS485 packets via V700 com port.

     If you see something correct than port and speed connection is OK.

    - try to activate Modbus and check via Info mode - what is go from V700 and from Energy Analyzer;

    - try to use single Modbus command activated by button and  check Modbus status.


    As i see you try to read MF 44 direct via modbus.

    On forum is present topics with Energy Meters float read via Modbus issue - maybe in your case some tips and tricks with two MI to MF convertion  needed.

    Please post Energy Analyzer model.


    • Like 1
  2. I have 1210 with the same behavior (but via standard connection). After some time  (approx half year) PLC start with black screen and beeps. 

    After some investigation (with Unitronics support) found problem in grafic chip soldering. After resolder chip - all ok.


    Maybe it is not the same issue...

    If Ldr 0x000001B0 code is the same in all Stop Mode cases  - please check it via Visilogic Find Subroutine By Ladder error code in Edit menu.




  3. Hi,

    As for me - best solution for this type of application (CUT to LENGTH or object positioning )  : 

    - send different fixed setpoint configured in VFD menu (i use two setpoint FAST and SLOW) via Modbus (for safety i allow user change this settings only when VFD is disabled  and appication is in STOP MODE) ;

    - select one of this  setpoints and RUN/STOP condition via PLC output and VFD logic input .


    Modbus connection may be lost if EMI from  VFD present. Correct grounding, shielding and wiring needed for smooth connection.

    Slow Modbus speed is solution but sometimes due to connection error information is not come to VFD also.


    Sometimes i configure FAST STOP INPUT in VFD and use it for SAFETY if encoder overtravel error possible.

  4. Combine Aus idea with linearization, some compare nets and PWM can realase visual effect with normal blink, fast blink before end of time and constant LIGHT when time is over.

    As for me normal blink must be active at the all normal process time. Faster blink  must be active only before time near finishing and this blink must not befaster then twice as normal.

    I build this idea on plastic welder machine. Only one GREEN LAMP and  two button is present on operator panel of this old machine.

    And user know when process go to the end by fast lamp blink.

    • Like 1
  5. Now in standard configuration you have only ONE com port1.

    This can be  used for USB connection (Visilogic) or for Modbus connection via RS485.  Simultanosly use for Visilogic connection and modbus is not possible for ONE port!

    Now after Ethernet card installation you can connect to Visilogic  via Ethernet.

    Correct IP and PLC name must be entered to Visilogic Communication & OS settings.

    Then you can use PLC Port 1 for Modbus. Please note - RS485 must be set by jamper inside PLC. Correct wire A and B must be connected to RS485 port.

    Only after correct hardware setup you can check Modbus status via Visilogic Ethernet connection.


    P.S.  Best solution - use Unitronics UMI VFD with integrated Modbus support in Visilogic.

    ALL in ONE software VFD automatic SETUP - only correct RS485 hardware settings needed.  

    • Like 1
  6. I recommend  to do table  of component that you use in your installation. And sort it by manufacturers.

    Then visit site where this component (free or not) element database present, You can see what software is suported by manufacturers.

    Then try to check  licences price for this software and futures provided.

    • Like 1
  7. Hi,

    Some quastions:

    1) Is it speed and 8E1 (simens default) settings  commisioned corectly in V350 com settings?

     2) Is it G120 setpoint channel sw. = Modbus, Control channel = Modbus?

    3) Is it G120 correctly commisioned and all self autotune done and all autotune settings written to the drive . Drive do not allow to net control before autotune done (default).

    4) What is with modbus status when command was send?


    maybe this document is useful:


    chapter Verifying the Installation


  8. Results...

    This project is delayed by lockdown...

    And now all problem with PLS (Programmed limit sw.)  is solved. Machine run without problem  for 24/7.

    After some test i find the way to easly check UP and DN direction. And all 8  PLS is divided to 8UP PLS and 8 DN PLS and stored to recipie.

    STOP in UP and DOWN is performed via Aus  idea - but the main problem is to get information about direction.

    This is  some part of code used in my project. Main idea - use scan time for data manipulation.   

    Position copy from CAN DW1 must be placed after Compare blocks.  




  9. 2 hours ago, John_R said:

    Two used modules in the trash

    This, in my opinion, has some logical explanation.
    There is something that the module does not like in your installation.
    And this is likely to happen again.
    Having faulty modules in hands - I would try to understand the reason analyzing the internal scheme.
    Therefore, if such a module worked for a long time and broke - you also need to change the sensors that are connected to it.
    It is not too expensive but it is usually a cause of breakage.

    If the module is installed in a new installation and fails - usually an error in installation, connection, power supply and grounding.

  10. If Flex tips is tested

    4 hours ago, Flex727 said:

    not stepping on MB 1244-1248 in either PLC.

    Please try to do:

    1) Declare MB vector in struct  for 56 bits or better for 64 bits - mayby empfy bits is not problem in your application.

    2) Use another struct in both PLC for collect MB to MI vector (and back in another PLC) and try to send it - idea use only ML and MI in UPD RAW.

    3) Maybe this MB1244-1248 is used for -|p|- in program and it changes is to fast for fix in struct.

  11. On another SAMBA you can use the same program with the same sensors without problem?

    Then maybe something wrong with PLC...

    I recommend: replace battery, init & reset PLC, download blank project, download your project --- Result?

    Last chance - replace firmware via visilogic...


    P.S. You change green connector to another one for test?



    9 hours ago, AlexUT said:

    2. It is not recommended to exchange board.

    It is only temporary for find what is wrong.

  12. On all my PC with Win XP,7,10 and Android in all Mozilla, Chromium, Opera i found some strange pic on forum pagesforum_trouble.thumb.JPG.c99539d62592ecbaa873a37ef7019ee5.JPG.

    Quastion to staff - something wrong happend or forum go to another platform... ect.....?

    Bold highlight for new answer in topic on the right not present....  :(


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