VEDA HCT User Manual Modbus RTU Extend series RS485-2 cable Modbus RTU Extend series RS485-4 cable Registers supported by Modbus RTU Extend: Notice: 4X_DINV and 3X_DINV are the big end format of double word 4X, and it is a word type address. For example, 4X3 is the hexadecimal 1234, 4X4 is the hexadecimal 5678, and 4X_DINV is the hexadecimal 12345678. 3 Differences between Modbus_RTU and Modbus_RTU_Extend Many data memory such as analog input data bit, data register bit and function code data register are added into Modbus_RTU_Extend on the base of Modbus_RTU.
4 Modbus_ TCP Modbus TCP cable 42 Device Bit Address Word Address Format Notes System internal/external output node 0X1-65535 —— DDDDD System internal/external input node 1X1-65535 —— DDDDD Analog input data bit 3X1 BIT1.0- _ 65535.15 —— DDDDD.DD Data register bit 4X1 BIT1.0- _ 65535.15 —— DDDDD.DD Analog input data register —— 3X1-65535 DDDDD Data register —— 4X1-65535 DDDDD Data register —— 5X1-65535 DDDDD Data register —— 6X1-65535 DDDDD Data register —— 3X-DINV1-65535 DDDDD Data register —— 4X-DINV1-65535 DDDDD