Operating instructions

R&S ESCI Starting Remote Control Operation
1166.6004.12 5.5 E-1
Remote Control via RS-232-Interface
Setting the Transmission Parameters
To enable an error-free and correct data transmission, the parameters of the unit and the controller
should have the same setting.
Parameters can be manually changed in menu SETUP-GENERAL SETUP in table COM PORT or via
remote control using the command SYSTem:COMMunicate:SERial:... .
The transmission parameters of the COM interface are factory-set to the following values:
baudrate = 9600, data bits = 8, stop bits = 1, parity = NONE and owner = INSTRUMENT.
For remote control operation, the interface should be allocated to the operating system (owner = OS) so
that the control characters including @ can be recognized by the interface.
Manually: Setting the COM interface
! Call SETUP-GENERAL SETUP menu
! Select desired baudrate, bits, stopbit, parity in table COM PORT.
! Set owner to OS in table COM PORT.
! Terminate input using the ENTER key.
Return to Manual Operation
Return to manual operation is possible via the front panel or via RS-232 interface.
Manually: ! Press the LOCAL softkey or the PRESET key.
Notes:
– Before the transition, command processing must be completed as
otherwise transition to remote control is performed immediately
– The keys can be enabled again by sending the control string "@LOC" via
RS-232 (see Chapter 8, S-232-C Interface - Control Commands).
Via RS-232: ...
v24puts(port,"@LOC"); Set instrument to manual operation..
...
Limitations
The following limitations apply if the unit is remote-controlled via the RS-232-C interface:
− No interface messages, only control strings (see interface description in Chapter 8, RS-232-C
Interface – Control Commands).
− Only the Common Commands *OPC? can be used for command synchronization, *WAI and *OPC
are not available.
− Block data cannot be transmitted.