Anybus® Communicator™ - EtherNet/IP™ to Modbus RTU/Serial

Create Transaction Templates

All frames are verified using a CRC-16-IBM checksum.

My Drive is using a request/response protocol to access parameters addressed with index and sub index.

Map up control word, speed from EtherNet/IP to My Drive and status word and actual speed from the drive to EtherNet/IP.

Create Read Parameter (0x01)

The Communicator reads values delivered from to the My Drive node on to the PLC.

Figure 101. Read Parameter (0x01)
Read Parameter (0x01)


  1. Add an Empty template and select it.

  2. Name the template Read parameter (0x01).

  3. In the Frame editor Request area, add five frame objects with the following settings:

    Table 6. Request frame objects

    Frame objects

    Name

    Bytes/Length

    Type/Checksum type

    Endianess

    Fixed field

    Value

    Constant

    Function code

    1

    Byte

    N/A

    Yes

    N/A

    Node address

    Node ID

    1

    Byte

    N/A

    N/A

    N/A

    Constant

    Index

    2

    Word (two bytes)

    Big-endian

    No

    Min 0

    Max 1000

    Constant

    Sub index

    1

    Byte

    N/A

    No

    Min 0

    Max 255

    Checksum

    Checksum

    2

    CRC

    N/A

    N/A

    N/A



  4. In the Frame editor Response area, add six frame objects with the following settings:

    Table 7. Response frame objects

    Frame object

    Name

    Bytes/Length

    Type/Checksum type

    Endianess

    Fixed field

    Value

    Constant

    Function code

    1

    Byte

    N/A

    Yes

    N/A

    Node address

    Node ID

    1

    Byte

    N/A

    N/A

    N/A

    Constant

    Index

    2

    Word (two bytes)

    Big-endian

    No

    Min 0

    Max 1000

    Constant

    Sub index

    1

    Byte

    N/A

    No

    Min 0

    Max 255

    Data

    Data

    2

    Byte

    N/A

    Yes

    N/A

    Checksum

    Checksum

    2

    CRC

    N/A

    N/A

    N/A



Create Write Parameter (0x02)

The Communicator writes values delivered from the PLC to the My Drive node.

Figure 102. Write Parameter (0x02)
Write Parameter (0x02)


  1. Add an Empty template and select it.

  2. Name the template Write parameter (0x02).

  3. In the Frame editor Request area, add six frame objects with the following settings:

    Table 8. Request frame objects

    Frame object

    Name

    Bytes/Length

    Type/Checksum type

    Endianess

    Fixed field

    Value (Hex)

    Constant

    Function code

    1

    Byte

    N/A

    Yes

    N/A

    Node address

    Node ID

    1

    Byte

    N/A

    N/A

    N/A

    Constant

    Index

    2

    Word (two bytes)

    Big-endian

    No

    Min 0

    Max 1000

    Constant

    Sub index

    1

    Byte

    N/A

    No

    Min 0

    Max 255

    Data

    Data

    2

    Byte

    N/A

    Yes

    N/A

    Checksum

    Checksum

    2

    CRC

    N/A

    N/A

    N/A



  4. In the Frame editor Response area, add five frame objects with the following settings:

    Table 9. Response frame objects

    Frame objects

    Name

    Bytes

    Type/Checksum type

    Endianess

    Fixed field

    Value (Hex)

    Constant

    Function code

    1

    Byte

    N/A

    Yes

    N/A

    Node address

    Node ID

    1

    Byte

    N/A

    N/A

    N/A

    Constant

    Index

    2

    Word (two bytes)

    N/A

    No

    Min 0

    Max 1000

    Constant

    Sub index

    1

    Byte

    N/A

    No

    Min 0

    Max 255

    Checksum

    Checksum

    2

    CRC

    N/A

    N/A

    N/A



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