R&S NRP2, User Manual

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Remote Control Fundamentals
R&S
®
NRP2
170 User Manual 1173.9157.02 ─ 03
GPIB (IEC/IEEE bus)
In order to remote control the R&S NRP2 via the GPIB bus, a controller with the respective
bus interface and the bus cable is required.
USB
The R&S NRP2 automatically recognizes a controller connected to the USB1.1 interface.
Ethernet/ VXI11
Controlling the R&S NRP2 via the Ethernet interface requires a computer with network
card and LAN cables to connect the computer and the R&S NRP2 controller with the
Ethernet.
5.3 Switchover to Remote Control (REMOTE)
It is assumed that a link has been established between the controller and the R&S NRP2
has been correctly configured.
After power up, the R&S NRP2 is always in manual control mode "LOCAL". The
R&S NRP2 switches to remote control irrespective of the selected interface as soon as
it receives a SCPI command. All settings are maintained when the device switches to
remote mode, except for the setting listed in
​
table 5-1 .
5.4 Return to Manual Operation (LOCAL)
In the remote mode, all front-panel controls are disabled, except for the ESC/LOCAL key
and the topmost softkey. The softkey used to open the window with the SCPI error queue.
The device remains in remote mode until it is switched back to manual control either by
using the front panel ESC/LOCAL or with the remote control command
GTL
.
The remote control command
LLO
also allows the ESC/LOCAL key to be disabled. In this
case, return to manual operation is only possible by remote control or by switching the
R&S
NRP2 off and on again (Power On Reset).
5.5 Automatic Settings when Switching between Local and
Remote
The table below lists the settings automatically performed when switching between the
remote and local modes.
Switchover to Remote Control (REMOTE)