Description
Product Description
Usb Relay Module Pc control 220V/110v switch module Support Modbus ASCII/RTU
Support standard Modbus protocol, while supporting ASCII/RTU format
Remarks:
The Modbus device directive supports the following Modbus addresses:
00001 to 09999 discrete output (coil)
10001 to 19999 is discrete input (contact)
30001 to 39999 is the input register (usually an analog input) from 40001 to 49999 is the hold register (reserved)
5 bit code format, the first character to determine the type of register, the remaining 4 characters on behalf of the address. Address 1 from the beginning of the 0, such as the corresponding 0000 of 00001.
Communication format
This product supports standard MODBUS instructions, detailed instruction format can refer to the "MODBUS protocol.Pdf".
This product also supports Modbus ASCII/RTU format.
Application examples and instructions: in addition to the address of the local code switch address, the default is 254.