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modbus >> modbus > modbus_connect

modbus_connect

Establish a Modbus connection.

Calling Sequence

status = modbus_connect(mbc)
[status, ierr] = modbus_connect(mbc)

Arguments

mbc

The modbus connection created with modbus_newTcp or modbus_newRtu.

status

0 if connection was successful and -1 otherwise.

ierr

Erreur number.

Description

Establish a connection to a Modbus server.

When called with one output argument, a Scilab error will occur when the connection fails. When called with two output arguments, no Scilab error will occur but ierr will contain the internal modbus error number.

Examples

mbc = modbus_newTcp("127.0.0.1", 502)
modbus_connect(mbc)
modbus_close(mbc)

See Also


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