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modbus >> modbus > modbus_newTcp

modbus_newTcp

create a modbus connection for TCP/IPv4

Calling Sequence

modbus_newTcp(host_IP, host_port)

Arguments

host_IP

a string containing target host IPv4 address.

host_port

the host port to connect on.

Description

This function will allocate and initialize a Modbus structure to communicate with a Modbust TCP/IPv4 server.

Modbus default port is 502. It's convenient to use a port number greater or equal to 1024 because it's not necessary to have administrator privileges.

Examples

mbc = modbus_newTcp("127.0.0.1", 502)
modbus_free(mbc)

See Also


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