Rohde & Schwarz 1094.0006.50, Operating Manual

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Remote Control CTS55
1094.0006.55 11.2 E-5
11.3 Switchover to Remote Control
On power-on, the instrument is always in the manual operating state ("LOCAL" state) and can be
operated via the front panel. It is switched to remote control ("REMOTE" state) as soon as it receives a
command from a controller. During remote control, operation via the front panel is disabled. The
instrument remains in the remote state until it is reset to the manual state via pressing the key "MENU
UP". Switching from manual operation to remote control and vice versa does not affect the instrument
settings.
Indications during Remote Control
In the REMOTE state, the display at the CTS can be configured:
1. Nothing is indicated on the display to increase the speed.
2. The actual remote command, the state of the testset and possibly occured errors are shown.
3. The display changes to the selected menu in a fullscreen-view.
11.4 Device Messages (Commands and Device Responses)
– Commands are messages the controller sends to the instrument. They operate the device
functions and request information.
The commands are subdivided according to two criteria:
1. According to the effect they have on the instrument:
Setting commands cause instrument settings such as reset of the
instrument or setting the output level to 1 volt.
Queries cause data to be provided for output on the remote-
control interface, e.g. for identification of the device or
polling the active input.
2. According to their definition in standard IEEE 488.2:
Common Commands are exactly defined as to their function and
notation in standard IEEE 488.2. They refer to
functions such as management of the standar-dized
status registers, reset and selftest.
Device-specific
commands
refer to functions depending on the features of the
instrument such as frequency setting. A majority of
these commands has also been standar-dized by
the SCPI committee (cf. Section 11.5.1).
– Device responses are messages the instrument sends to the controller after a query. They can
contain measurement results, instrument settings and information on the
instrument status (cf. Section 11.5.4).
Structure and syntax of the device messages are described in Section 11.5. The commands are listed
and explained in detail in Section 11.6.