ModbusEnableMaster — enables and disables Modbus master functionality.
(ModbusEnableMaster 0|1)
0|1
If 1, the DataHub Modbus master functionality is
enabled; if 0, it is disabled.
A message indicating success or error. Please refer to Return Syntax for details.
If the argument is 1, the DataHub Modbus master functionality
is enabled. This is equivalent to checking the Enable Modbus
master check-box in the Modbus option of the Properties window.