PD4-E Modbus TCP Online Manual

NanoJ objects

NanoJ objects 2400h NanoJ Input and 2500h (NanoJ Output) are, like the process image, mapped to the Modbus register:

  • 2400h with 32 x 32 bit values is mapped to the Modbus register address beginning with 2000d (7D0h).
  • 2500h with 32 x 32 bit values is mapped to the Modbus register address beginning with 3000d (BB8h).
To access, commands with function codes 03h, 04h, 10h and 17h can be used. For purposes of data consistency, the restriction that the address must be 32-bit aligned and that at least 32 bits must always be written during a write operation applies.

Example

Request: The master sends the slave the following message:

Reply: The slave sends the master the following response:

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