Data Object Properties

modbus_rtu_graphic2

  • MODBUS RTU packets are only intended to send data; they do not have the capability to send parameters
  • If the ability to send such parameters is needed, one should investigate a BACnet, EtherNet/IP, or other modern protocol
Name Type Access Visual
Discrete Input single bit read-only
Discrete Output (Coils) single bit read-write
Input Registers 16-bit word read-only
Holding Registers (Registers) 16-bit word read-write

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