Remote control interfaces
R&S
®
NRP2
352User Manual 1173.9157.02 ─ 03
Table 1-2: Common commands
Command Effect on device
DCL (Device Clear) Aborts all commands and messages in progress. The TRIGger sys-
tem goes to the "IDLE" state, input and output queues are cleared, and
the parser is reset and waits for the beginning of a new command.
When INITiate:CONT ON is set, a new measurement is started.
This command makes the device ready to receive commands.
IFC (Interface Clear) Resets the interfaces to their initial condition.
LLO (Local Lockout) Manual switchover to LOCAL is disabled.
Local LockOut deactivates the front-panel keypad with the exception
of the power key . In the LLO state, it is possible to return to the
"LOCAL" mode only by remote control (GTL command) or switching
the R&S NRP2 off and on again.
SPE (Serial Poll Enable) Ready for serial poll.
SPD (Serial Poll Disable) End of serial poll.
PPU (Parallel Poll Unconfigure) End of parallel poll query status.
A.1.5.2 Addressed commands
Addressed commands are in the code range 0x00 to 0x0F hex. They only affect devices
addressed as a listener.
Table 1-3: Addressed commands
Command Effect on device
SDC (Selected DeviceClear) Interrupts processing of received commands and sets the command pro-
cessing software to a defined initial state. This command does not change
the device setting.
GTL (Go to Local) Change to local mode (manual control).
PPC (Parallel Poll Configure) Configures device for parallel poll.
A.2 Ethernet
For remote control via a TCP/IP-based LAN, the R&S NRP2 can be fitted with an optional
10/100BaseT Ethernet interface (option R&S NRP2-B4). The female connector is located
on the rear panel of the R&S NRP2. Via this interface, a controller can remote-control the
R&S NRP2 by means of the power meter's SCPI commands, using the VXI11 protocol
(TCP/IP instrument protocol specification), version 1.0, released on July 17, 1995 by the
VXIbus Consortium.
Fig. 1-2: Ethernet connector
Ethernet
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