Non-sequential scanning – Agilent Technologies Switch/Measure User Manual

Page 69

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Features and Functions

2

34980A User’s Guide

57

Remote Interface Operation:

Use the following commands to select the

reading format.

FORMat:READing:ALARm ON

FORMat:READing:CHANnel ON

FORMat:READing:TIME ON

FORMat:READing:TIME:TYPE {ABSolute|RELative}

FORMat:READing:UNIT ON

Non-Sequential Scanning

By default, the instrument scans the list of channels in ascending order
from slot 1 through slot 8 (channels are reordered as needed). If your
application requires non- ordered scanning of the channels in the present
scan list, you can use the non- sequential scanning mode.

This feature is available from the remote interface only.

• The scanning mode applies to the entire mainframe and cannot be

selectively used on individual modules.

• When sequential scanning is enabled (default), the channels in the scan

list are placed in ascending order from slot 1 through slot 8. Duplicate
channels are not allowed. For example, (@2001,1003,1001,1003) will be
interpreted as (@1001,1003,2001).

• When sequential scanning is disabled (OFF), the channels remain in the

order presented in the scan list (see exception below). Multiple
occurrences of the same channel are allowed. For example,
(@2001,2001,2001) and (@3010,1003,1001,1005) are valid and the
channels will be scanned in the order presented.

• When you specify a range of channels in the scan list, the channels are

always sorted in ascending order, regardless of the scan order setting.
Therefore, (@1009:1001) will always be interpreted as 1001, 1002,
1003, etc.

• If you define a scan list with the sequential mode enabled and later

disable the mode, the scan list will not be reordered; however, the scan
list will be treated as a non- sequential list thereafter.

• If you have defined a scan list with the sequential mode disabled (OFF)

and later enable the mode, the channels will be reordered.

• Non- sequential scan lists are not stored as part of the instrument state

by the

*SAV

command; in this case, the ordered mode will be enabled

and the scan list will be empty when the instrument state is restored
(

*RCL

command).

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