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5.1.1.1 LAN interface
The microwave power meter can be accessed to the 10 Mbps/100 Mbps/1,000 Mbps Ethernet through a RJ45
communication cable (shielded or unshielded CAT 5 twisted pair) for remote control via the LAN control computer. To
achieve LAN remote control, the microwave power meter has been provided with an interface adapter and a TCP / IP
network protocol and configured with the corresponding TCP-based network service.
The network interface adapter for the S2438 series microwave power meter can work in the following three modes:
10 Mbps Ethernet (IEEE802.3);
100 Mbps Ethernet (IEEE802.3);
1,000 Mbps Ethernet (IEEE802.3ab).
The interface adapter can automatically match with the appropriate network speed based on link condition. In general,
the length of the cable connecting the microwave power meter should not exceed 100 m. For more information about
Ethernet, please refer to: http://www.ieee.org.
The knowledge of LAN interface is introduced hereinafter.
1) IP address
When remote control of the microwave power meter is achieved through LAN, unblocked physical connection of the
network should be guaranteed. The address is set within the subnet where the main control computer is located through
the "Local IP" menu of the microwave power meter. For example, if the IP address of the main control computer is
192.168.12.0, the IP address of the microwave power meter should be set as 192.168.12 .XXX, where XXX is a number
between 1 and 255.
Only the IP address is required to establish a network connection. The VISA addressing string is as follows:
TCPIP::host address::port::SOCKET
Where,
TCPIP - network protocol used;
host address - IP address or host name of the instrument, for identification and control of the controlled instrument;
port - socket port number, 5000 for the socket port of the S2438 series microwave power meter;
SOCKET - raw socket resource class.
Example:
When the raw socket connection is created, the following addressing string can be used:
TCPIP::192.1.2.3::5000::SOCKET
Method of identification of multiple instruments in the remote control system
If multiple instruments are connected to the network, they can be identified by their individual IP address and associated
resource string. The main control computer uses the respective VISA resource string for instrument identification.
