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TCP Testing When the test button is selected the program will attempt to read one word of data from the device at the address entered. If the address is a coil (0XXXXX) or an input (1XXXXX), an attempt to read 16 elements (one word) is performed. If the connection is the primary it will bind the socket to the first NIC detected. If the connection is the secondary it will bind the socket to the second NIC if detected. If a second NIC is not installed it will bind the socket to the first NIC detected. If a "host name" is entered the IP address is ignored. Note: By design the primary port will attempt to use the first device in the network configuration list and the secondary connection, if enabled, will attempt to use the second device in the network configuration list. Change the list order as desired to get the connection path desired. If this is not possible or allowing the OS to automatically define the path is desired contact technical support for directions to disable network port binding. Page 689