Remote Control Basics
R&S
®
NRPxxA(N)
134User Manual 1177.6017.02 ─ 05
Besides USBTMC, the NRP legacy protocol is available to ensure the compatibility of
the R&S NRPxxA(N) power sensors with the R&S NRP‑Z series of power sensors. The
usage of this protocol is not recommended for new applications.
The resource string represents an addressing scheme that is used to establish a com-
munication session with the sensor. It is based on the sensor address and some instru-
ment- and vendor-specific information.
USB Resource String
The syntax of the used USB resource string is:
USB::<vendor ID>::<product ID>::<serial number>[::INSTR]
where:
●
<vendor ID> is the vendor ID for Rohde & Schwarz (0x0AAD)
●
<product ID> is the product ID for the Rohde & Schwarz sensor
●
<serial number> is the individual serial number on the rear of the sensor
Table 11-2: R&S
NRPxxA(N) USB product IDs
R&S NRPxxA(N) power sensor USB product ID
R&S NRP6A 0x0178
R&S NRP6AN 0x0179
R&S NRP18A 0x014E
R&S NRP18AN 0x014F
Example:
USB::0x0AAD::0x0178::100001
0x0AAD is the vendor ID for Rohde & Schwarz.
0x0178 is the product ID for the R&S NRP6A power sensor.
100001 is the serial number of the particular power sensor.
11.1.2 Ethernet Interface
The Ethernet interface of the R&S NRP LAN power sensors allows you to integrate
them in a local area network (LAN).
For remote control via a network, the computer and the power sensor must be connec-
ted via the Ethernet interface to a common network with TCP/IP network protocol. The
TCP/IP network protocol and the associated network services are preconfigured on the
power sensor. Software for device control and the VISA program library must be instal-
led on the computer.
11.1.2.1 VISA Resource Strings
The VISA resource string is required to establish a communication session between
the controller and the power sensor in a LAN. The resource string is a unique identifier,
Remote Control Interfaces and Protocols
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