Example

Example:

MODBUS interface of the client	COM1
Client writes to	Server 1

MODBUS request of the client

Server address	Function code	CRC
		High	Low
01HEX	07HEX	41HEX	E2HEX

MODBUS response of the server

Server address	Function code	Data byte	CRC
			High	Low
01HEX	07HEX	00HEX	xxHEX	xxHEX

Parameterization \ of the COM_MOD_MAST Function Block inputs

EN	COM	SLAVE	FCT	TIMEOUT	ADDR	Number of bits	DATA
FALSE -> TRUE	1	1	7	Application- specific	0	0	ADR (BoolVar)