Section 8 - Auto Mode
8-2
VM700A Option 01 (NTSC) & Option 11 (PAL) User Manual
Beyond the Violated Limits columns, Auto mode prints messages primarily for
measurements that cannot be performed. The comment describes the nature of the
problem the VM700A has in making the measurement to assist you in rectifying the
problem. If the measurement is one that will not normally be available from the signal
being measured, a new Selected Measurement file can be created to customize the
measurements list to those of interest in your application.
Auto mode has a utility for generating reports of specified measurements at
specified times, or for automatically executing functions at specified times. The
report is in the same format as the Auto mode display. Configuring the report
generation/function execution process is discussed in detail later in this section.
The VM700A can be set to log (print) limit violations. A one-line report from
the Auto mode display is logged any time a measurement result crosses the
Alarm Limit boundary a specified consecutive number of times, both when the
measurement goes outside the limit or comes back within the limit.
Enabling/Disabling Logging. The automatic logging of violated limits can be
enabled or disabled by setting the Serial And Printer Setup file (found in
Configure mode) Log Port entry to Port 0 or Port 1 (enabled) or None (disabled,
the default setting). If Option 48, the GPIB Interface, is installed, the logging
port may be set to GPIB.
Remote Operation
The VM700A Auto mode measurements may be executed individually or as
reports while in remote operation. Details of making Auto mode measurements
remotely are discussed in the VM700A Programmer’s Reference Manual.
Configuring Auto Mode
Each input SOURCE (channels A, B, and C) has a file assigned to it in the
Video_Source Files directory that specifies other files to use for defining
measurement limits, measurement signal locations, and selected measurements.
System default files are provided that may be used as templates to create
customized measurement configuration files. Basic information on each of these
files and how to use the Configure mode directory structure is found in
Section 3, Configuring the VM700A.
The following aspects of Auto mode can be configured by the user:
Caution and Alarm Limits can be user defined (Auto Limit Files).
Locations of test signals on VITS lines and presence of zero carrier should
be defined (Measurement Locations file).
Comments Column
Timed Events
Violated Limits Logging
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