
1-40 Programming Guide
Preparing for Use ESG Family Signal Generators
Getting Started with SCPI
Boolean Parameters Boolean parameters represent a single binary condition that is
either true or false. There are only four possible representations for a Boolean parameter:
Block Parameters A data block contains the data of primary interest. It may contain
dimensioned data such as DATA(CURVe), or specific sets of data (WAVEform, etc.). At
least one data block is required and multiple data blocks are allowed. The following table
details the data block for a List Pattern data block, used to write pattern lists directly to
the instrument’s baseband generator board:
Response Data Types
Real Response Data A large portion of all measurement data are formatted as real
response data. Real response data are decimal numbers in either fixed decimal notation or
scientific notation. Most high-level programming languages that support instrument I/O
handle either decimal or scientific notation transparently.
Examples of real response data:
1.23E+0
−1.0E+2
+1.0E+2
0.5E+0
1.23
−100.0
+100.0
0.5
ON Boolean true, upper/lower case allowed
OFF Boolean false, upper/lower case allowed
1 Boolean true
0 Boolean false
Bit 0 (1) data value: 0 or 1 as required for a data bit.
Bit 1 (2) Always 0
Bit 2 (4) Burst control: 0 for burst off, 1 for burst on. All data values that require
power out must have this bit on.
Bit 3 (8) Always 0
Bit 4 (16) Always 16
Bit 5 (32) Always 0
Bit 6 (64) Event 1 control: 0 or 1, as desired on the EVENT1 output.
Bit 7 (128) Pattern reset: Reset the pattern to start after this entry is processed.
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