Rohde & Schwarz SMM100A, User Manual

Page: 793 / 1088

Remote control commands
R&S
®
SMM100A
793 User Manual 1179.1341.02 ─ 05
The source file has to be available in the default directory (see
:MMEMory:
CDIRectory
) .
Refer to Chapter 13.5.2, "Accessing files in the default or in a specified directory" ,
on page 662 for general information on file handling in the default and a specific direc-
tory.
Setting parameters:
<Filename> string
Example: See Example "Performing general tasks" on page 770
Usage: Setting only
Manual operation: See "Select Data List" on page 120
[:SOURce<hw>]:BB:DM:CLISt:DATA <Data>
Sends the data to the currently selected control list. If the list already contains data, it is
overwritten . This command only writes data into the data section of the file.
The values for the control signals are sent, arranged in an 8-bit value as defined in
Table 13-1 .
Table 13-1: Contents of a control lists
Signal Order Decimal value of bits
Marker 1
Marker 2
Marker 3
LSB 1
2
4
Burst LSB 16
LevAtt1 LSB 32
CWMod LSB 64
Hop MSB 128
The data can also be sent as a binary block, each binary block being a 2-byte value in
which the 16 bits represent the binary values (16-bit unsigned integer, 2 bytes, LSB
first).
When binary data transmission is in use, use the com-
mand
:SYSTem:COMMunicate:GPIB:LTERminator EOI
to set the termination
character mode to ‘EOI control data message only’ so that a random
LF
in the data
sequence is not interpreted as
End
, thereby prematurely terminating the data transmis-
sion. The command
...LTER STAN
resets the mode.
According to the specifications, the byte sequence is defined as 'most significant byte
first'.
Tip: Control lists are created in binary format. You may however need the control list in
an ASCII format, e.g for creating a waveform file with R&S WinIQSIM2. Refer to the
examples in Chapter 4.6.4.7, "How to create a control list using tag file format" ,
on page 173 for description on how to create a control list file in ASCII format manually.
SOURce subsystem