R&S QAT100, User Manual

Page: 31 / 44

Remote control
R&S
®
QAT100
31 User Manual 1179.3073.02 ─ 02
8 Remote control
● Remote Control Interface and Protocol ...................................................................31
● Remote control commands ..................................................................................... 33
8.1 Remote Control Interface and Protocol
For the R&S QAT, the remote control interface is the LAN interface. The LAN interface
consists of a connector, a network interface card and protocols.
The network card can be operated with the following interfaces:
●
10 Mbit/s Ethernet IEEE 802.3
●
100 Mbit/s Ethernet IEEE 802.3u
●
1Gbit/s Ethernet IEEE 802.3ab
For remote control via a network, the PC and the instrument must be connected via the
LAN interface to a common network with TCP/IP network protocol. They are connected
using a commercial RJ45 cable (shielded or unshielded twisted pair category 5). The
TCP/IP network protocol and the associated network services are preconfigured on the
instrument. Software for instrument control and the VISA program library must be
installed on the PC (controller).
IP address
Only the IP address or a valid DNS host name is required to set up the connection.
The host address is part of the "VISA resource string" used by the programs to identify
and control the instrument.
The VISA resource string has the form:
TCPIP::host address[::LAN device name][::INSTR]
where:
●
TCPIP designates the network protocol used
●
host address is the IP address or host name of the device
inst0
selects the VXI-11 protocol
●
LAN device name defines the protocol and the instance number of a sub-instru-
ment;
●
INSTR indicates the instrument resource class (optional)
Example:
●
Instrument has the IP address 192.1.2.3 ; the valid resource string using VXI-11
protocol is:
TCPIP::192.1.2.3::INSTR
Remote Control Interface and Protocol