R&S®SML / R&S®SMV03 Switchover to Remote Control
1090.3123.12 E-6 5.3
Switchover to Remote Control
On power-up, the instrument is always in the manual control mode ("LOCAL" state) and can be
operated via the front panel.
The instrument is switched to remote control ("REMOTE" state) as follows:
IEC/IEEE-bus: when it receives an addressed command from the controller.
RS-232-C interface: when it receives a carriage return <CR> (=0Dh) or a line feed <LF> (=0Ah) from
the 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 the front panel or via the IEC/IEEE bus. Switching from
manual to remote control and vice versa does not affect the instrument settings.
Remote Control via IEC/IEEE Bus
Setting the Device Address
The IEC/IEEE-bus address of the instrument is factory-set to 28. It can be changed manually in the
Utilities - System - GPIB-Address menu or via the IEC/IEEE bus. Addresses 1 to 30 are permissible.
Manually:
Call Utilities - System - GPIB-Address menu.
Enter desired address.
Terminate input using the [1x/ENTER] key.
Via IEC/IEEE bus:
CALL IBFIND("DEV1", generator%) Open port to instrument
CALL IBPAD(generator%, 28) Transfer old address to controller
CALL IBWRT(generator%, "SYST:COMM:GPIB:ADDR 20")
Set instrument to new address
CALL IBPAD(generator%, 20) Transfer new address to controller
Indications during Remote Control
The remote control state is indicated by "Remote" being displayed in the STATUS line. In the REMOTE
state, the STATUS page is always displayed.
"Locked" indicates that the [LOCAL] key is disabled, ie switchover to manual control can only be made
via the IEC/IEEE bus. If "Unlocked" is displayed, switchover to manual control can be made with the
[LOCAL] key.
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