R&S ESU Remote Control – Description of Commands
TRACe Subsystem
6.254 Operating Manual 1302.6163.12 - 03
Blockwise transmission with data volumes exceeding 512k words:
With > 512 k ≡ 524288 samples, the data is transmitted in logical blocks of 512k values. All transmitted
blocks, except the block last transmitted, have a data length of exactly 512k words.
The following example shows the data structure for 1058816 I data samples and 1058816 Q data the
samples. Since the block length is limited to 512k, 3 blocks are required for data transmission:
512k (=524288) Samples of I data of Block 1
512k (=524288) Samples of Q data of Block 1
512k (=524288) Samples of I data of Block 2
512k (=524288) Samples of Q data of Block 2
10k (=10240) Samples of I data of Block 3
10k (=10240) Samples of Q data of Block 3
Fig. 6.46 Block transfer structure
Characteristics: *RST value: --
SCPI: device-specific
Mode: A-T
TRACe<1|2>:IQ:DATA:FORMat COMPatible | IQBLock | IQPair
This command sets the data output formatting (using the TRAC:IQ:DATA? command).
For further details see Fig. 6.46.
Parameter: COMPatible: 512k I data and 512k Q data is alternately transferred
IQBLock: First, all I and then all Q data is transferred
IQPair: I/Q data is transferred in pairs
Example: "TRAC:IQ:DATA:FORM IQP"
Characteristics: *RST value: COMP
SCPI: device-specific
Mode: A
Using the command with the *RST values for the TRAC:IQ:SET command, the
following minimum buffer sizes for the response data are recommended:
ASCII format: 10 kBytes
Binary format: 2 kBytes
I
Q
I
Q
I
Q
512 k samples of I data
Block 1
Block 2
Block 3
Block transfer structure for 1034k samples = 1058816 samples
512 k samples of Q data
512 k samples I data
512 k samples of Q data
10 k samples of I data
10 k samples of Q data
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