Agilent Technologies L4400 - Manual (Page 91)

Operating and Programming 3
L4400 User’s Guide 79
Reading Format
Usage:
• L4450A 64- Bit Digital I/O (digital input, counter channels only)
• L4452A Multifunction Module (digital input, totalizer channels only)
During a scan, the instrument automatically adds a time stamp to all
readings and stores them in memory. Each reading is stored with
measurement units, time stamp, channel number, and alarm status
information. You can specify which information you want returned with
the readings.
• The reading format applies to all readings being removed from the
instrument from a scan; you cannot set the format on a per- channel
basis.
• The CONFigure and MEASure? commands automatically turn off the
units, time, channel, and alarm information.
• The format settings are stored in volatile memory and will be lost
when power is turned off or after a Factory Reset ( *RST command).
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
Usage:
• L4421A 40- Channel Armature Multiplexer
• L4450A 64- Bit Digital I/O (digital input, counter channels only)
• L4452A Multifunction Module (digital input, totalizer channels only)
By default, channels are scanned in ascending order. If your application
requires non- ordered scanning of the channels in the present scan list,
you can use the non- sequential scanning mode.

• When sequential scanning is enabled (default), the channels in the
scan list are placed in ascending order.
• When sequential scanning is disabled (OFF), the channels remain in
the order presented in the scan list. Multiple occurrences of the same
channel are allowed. For example, (@1001, 1001, 1001) and
(@1010,1003,1001,1005) are valid and the channels will be scanned in
the order presented.