Yaskawa vfd communication with weintek via ethernet

Communication Knowledgebase
Yaskawa vfd communication with weintek via ethernet
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  • HMI Model: CMT3162X
  • EasyBuilder Pro Version: V6.09.01
  • Serial Number or supplier:
  • Dear tech support,
    I hope this message finds you well.
    I have two Yaskawa VFDs (IQ Pump models) and would like to establish communication with a Weintek CMTx series HMI via Ethernet. I am using the SI-EN3 option card on my Yaskawa drives.
    Could you please provide guidance on how to set this up? If you have any documentation or sample code that you could share, I would greatly appreciate it.
    Thank you for your assistance!
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Hi @hadi.rafiei,

Can you please post the model number of your Yaskawa VFD for our reference?

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The vfd model is CIMR-PW2A0010FAA

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Hi @hadi.rafiei,

The vendor website shows that Modbus TCP/IP is a possibility with this drive. Section C.9 within the “TOEPYAIP1W01” user manual shows the Modbus mapping of this drive and section C.7 shows the supported function codes in HEX format:

Function Code Description
03H Read MEMOBUS/Modbus registers
08H Loopback test
10H Write to multiple MEMOBUS/Modbus Registers

I have not worked with this drive, but assuming these function codes are supported via Modbus TCP/IP as well, you can use our Modbus TCP/IP driver to communicate with this device. The function codes supported by this driver are as follows:

image
image1497Ă—634 104 KB

I would recommend that you reach out to Yaskawa support to determine how to configure this drive to communicate via Modbus TCP. However, the aforementioned user manual may provide enough information to get started.

5

Thank you for your response. I completely agree with you. I worked on the project using TCP/IP, but the customer was not satisfied. They expected both sides to communicate simply because they each had an Ethernet port. However, I explained that TCP/IP was the only way to achieve this

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You’re very welcome! Both devices must support a common protocol, such as Modbus TCP/IP or EtherNet/IP, to communicate effectively. While the interface (Ethernet, in this case) is important, communication won’t be possible without a shared protocol.

Feel free to share any updates when you hear back from Yaskawa support—your insights could be valuable to other Weintek or Yaskawa users in the future!

7

I want to clarify that Yaskawa VFDs using SI-EN3 can communicate over EtherNet/IP. However, in the Weintek HMI settings, I could not find an option to set up communication with this VFD via Ethernet.

After researching online, the only method I found for communication is through TCP/IP. Before proceeding, I’d like to confirm—is there any way to configure Weintek to communicate with this VFD via Ethernet/IP?

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According to the SI-EN3 user manual (see chapter 12, 13, 14), this communication option module supports Ethernet/IP explicit messaging. Within EBpro, you can use the driver called “ODVA EtherNet/IP (Explicit Messaging)” to talk to this VFD.

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thank you so much