Circutor CEM-M-RS-485 Instrukcja Użytkownika Pobierz pdf (Strona 13)

The unit will respond to us with the next frame:

Address Function No� of bytes Serial no� CRC

01 04 04 XXXX XXXX CRC

Note: The values are shown in hexadecimal.

The number of requested logs must be the same as the size of the variable requested.

It is possible to read several consecutive addresses, if the request meets the correct format.

4�4�3�- WRITE COMMANDS

The CEM M-RS485 supports integer type write functions: 0x01.

The unit's Modbus variables are specied in Table 4.

Example: Changing the Modbus address of peripheral 01 to the address 0x000A.

We will send the following Modbus frame:

Address Function Initial log Log no� No� bytes Data CRC

01 10 03E8 0001 02 000A CRC

The unit will respond to us with the next frame:

Address Function Initial log Log no� CRC

01 10 03E8 0001 CRC

Note: The values are shown in hexadecimal.

The number of logs to write must be the same as the size of the variable that is being

accessed.

It is possible to write several consecutive addresses, if the request meets the correct format.

Instruction Manual

CEM M-RS485

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Circutor CEM-M-RS-485 Instrukcja Użytkownika Strona 13