Chapter 8 Advanced Remote Operation
Remote Command Set -
Command Set Hierarchy
Remote Command Set-Command Execution (continued)
<PROGRAM MESSAGE> into an input buffer, before executing any of the individual <PROGRAM
MESSAGE UNITS>. The advantage of this method is two fold: 1) it allows the Model 2411B to process
the commands very quickly as a group, rather than wait for the slower bus transfers to complete, and 2)
it offers the non-sequence dependent benefits as outlined above.
Command Set Hierarchy
The command set of the Model 2411B uses a hierarchial structure similar to the file structure on many
computer systems. The following figure shows an example of this structure.
root
WVFM
level 1
LEN
POSN
SIZE
SYNC
WAVE
While some instruments use several levels within the command set structure, the Model 2411B uses
mostly one or two levels. The top level (represented by the mnemonic WVFM) is called the root, and
the next lower level is level 1. With this structure you must follow a path through the root in order to
reach the commands on level 1. Referring to the hierarchy diagram, if you wanted to execute the com-
mand SIZE, you would need to indicate the path (through the root) as follows:
WVFM:SIZE 100;
Finally, it is important to note that 1) the path rules of the Model 2411B, allow the programmer to delete
the root from the command if the level 1 command has the same root as the preceding command, and 2)
if the preceding command is at level 1, you must specify any new root by using a ":" in front of the root
mnemonic. To illustrate 1):
WVFM:WAVE 10;:WVFM:SIZE 100
is the same as
WVFM:WAVE 10;SIZE 100
Stacked Queries
In general the Model 2411B allows stacked queries, returning the responses in the same order in which
the queries were received. The only exceptions to this are the *IDN? and *OPT? queries. Any queries
that are placed after the *IDN? or *OPT? queries in a <PROGRAM MESSAGE> will be ignored.
8-16
Summary of Contents for 2411B
Page 10: ...1 Quick Start...
Page 22: ......
Page 23: ...2 About Arbitrary Waveforms...
Page 30: ......
Page 31: ...Chapter 2 About Arbitrary Waveforms 2411B Block Diagram 2 8 Block Diagram...
Page 32: ...3 Front Panel Menu Operation...
Page 41: ...4 Waveform Creation System...
Page 43: ...Chapter 4 Waveform Creation System User Interface for the Waveform Creation System 4 3...
Page 61: ...5 Multi Instrument Operation...
Page 68: ...6 Performance Verification...
Page 71: ...Chapter 6 Performance Verification Verification Test Sheet 6 4...
Page 72: ...7 Remote Interface Operation...
Page 78: ...Chapter 7 Remote Interface Operation Command Set Command Set 7 7...
Page 79: ...Chapter 7 Remote Interface Operation Command Set continued Command Set continued 7 8...
Page 80: ...Chapter 7 Remote Interface Operation Command Set continued Command Set continued 7 9...
Page 81: ...Chapter 7 Remote Interface Operation Command Set continued Command Set continued 7 10...
Page 82: ...Chapter 7 Remote Interface Operation Command Set continued Command Set continued 7 11...
Page 83: ...Chapter 7 Remote Interface Operation Command Set continued Command Set continued 7 12...
Page 84: ...Chapter 7 Remote Interface Operation Command Set continued Command Set continued 7 13...
Page 91: ...8 Advanced Remote Operation...
Page 125: ...Appendix...
Page 133: ...AMPLITUDE OFFSET RANGES...
Page 134: ...INDEX...
Page 140: ......