Rohde & Schwarz SME02 - Remote Control Via IEC Bus; Setting the Device Address; Indications During Remote Control; Querying the Error Status

SME Switchover to Remote Control
1038.6002.02 3.3 E-13
3.3.1 Remote Control via IEC Bus
3.3.1.1 Setting the Device Address
The IEC-bus address of the instrument is factory-set to 28. It can be changed manually in the
UTILITIES-SYSTEM-GPIB-ADDRESS menu or via IEC bus. Addresses 0 to 30 are permissible.
Manually:
À Call UTILITIES-SYSTEM-GPIB-ADDRESS menu
À Enter desired address
À Terminate input using the [1x/ENTER] key
Via IEC bus:
CALL IBFIND("DEV1", generator%) Open port to the instrument
CALL IBPAD(generator%, 28) Inform controller about old
address
CALL IBWRT(generator%, "SYST:COMM:GPIB:ADDR 20") Set instrument to new address
CALL IBPAD(generator%, 20) Inform controller about new
address
3.3.1.2 Indications during Remote Control
The state of the remote control is evident by the words "IEC REMOTE" or "LOCAL" on the STATUS
page. The STATUS page is always displayed in the REMOTE state.
LOCKED indicates that the key [LOCAL] is disabled, i.e. switchover to manual operation is only possible
via IEC/IEEE bus. With UNLOCKED indicated, switchover to manual control is possible via the key
[LOCAL] (see also section 3.3.1.3).
3.3.1.3 Querying the Error Status
CALL IBWRT(generator%, "SYST:SERR?")
CALL IBRD(generator%, error$)
The string error$ contains the list of errors existing at the time of the query. This list corresponds to
the list displayed when the [ERROR] key is pressed in manual operation (see Section 2.14). It differs
from the SCPI error list in that error entries are not deleted by the query. They are deleted only when the
corresponding errors don’t exist any more (e.g. after a setting has been changed).
3.3.1.4 Return to Manual Operation
Return to manual operation is possible via the front panel or the IEC bus.
Manually: À Press the [LOCAL] key.
Notes:
– Before switchover, command processing must be completed as otherwise
switchover to remote control is effected immediately.
– The [LOCAL] key can be disabled by the universal command LLO (see
annex A) in order to prevent unintentional switchover. In this case,
switchover to manual mode is only possible via the IEC bus.
– The [LOCAL] key can be enabled again by deactivating the REN control line
of the IEC bus (see annex A).
Via IEC bus: ...
CALL IBLOC(generator%) Set instrument to manual operation.
...