Agilent Technologies L4400 Podręcznik Użytkownika Pobierz pdf (Strona 92)

80 L4400 User’s Guide

3 Operating and Programming

• 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).

• The scan order setting is stored in volatile memory and the ordered

mode will be enabled when power is turned off or after a Factory

Reset (

*RST command).

The command used to control the order of the scan list is:

ROUTe:SCAN:ORDered {OFF|ON}

Monitor Mode

Usage:

• L4450A 64- Bit Digital I/O (digital input, counter channels only)

• L4452A Multifunction Module (digital input, totalizer channels only)

In the Monitor mode, the instrument takes readings as often as it can on

a single channel or during a scan. This feature is useful for

troubleshooting your system before a test or for watching an important

signal.

• Any channel that can be “read” by a device can be monitored. This

includes the digital input, totalizer, and the counter channels.

• Readings acquired during a Monitor are not stored in memory.

However, all readings from a scan in progress at the same time are

stored in memory.

• The Monitor mode is equivalent to making continuous measurements 

on a single channel with an infinite scan count. Only one channel can

be monitored at a time but you can change the channel being

monitored at any time.

• A scan in progress always has priority over the Monitor function.

• Channels do not have to be part of an active scan list to be

monitored; however, the channel must be configured for a

measurement in order to be monitored.

• The Monitor mode ignores all trigger settings and takes continuous

readings on the selected channel using the IMMediate (continuous)

source.

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