Measurement Computing WaveView - Manual (Page 15)

WaveView 03-05-02 WaveView, pg. 13
The various columns contain the configuration information for each channel. Some columns allow blocks of
cells to be altered simultaneously, while others allow one cell to be changed at a time. Some columns may
be static and cannot be altered. Clicking a column header will select the entire column if applicable.
A discussion of each column follows.
CH
- The channel number column labeled CH is static and cannot be altered. This column identifies the
analog (or digital) input channel to be configured in that row. This number includes all channel numbers
from the WaveBook and any attached expansion chassis (WBK10/10H, WBK14, WBK15, WBK16, and
WBK17). The channels are numbered as follows:
CH Description Default Label
CtrLo External Clock Period (Lo); Applies to WaveBook/516, /512A, /516A CtrLo
CtrHi External Clock Period (Hi); Applies to WaveBook/516, /512A, /516A CtrHi
Dig WaveBook Digital Channel Dig
0-1 to 0-8 WaveBook Analog Channels CH01 to CH08
1-1 to 1-8 First Expansion Channels CH09 to CH16
2-1 to 2-8 Second Expansion Channels CH17 to CH24
etc. etc. etc.
Module Type –
This column is hidden by default, but can be displayed by selecting it in the
“Customize Column Layout Window” that is activated by toolbar button (17), or by clicking the “Show All
Columns” button (18). The column identifies the types of modules and their installed option cards, if
applicable. The column’s information is automatically derived from the WaveBook system’s actual
hardware.
On/Off -
This column allows you to enable and disable channels. Double-clicking a cell in this column
will toggle the channel status, i.e., On to Off and visa versa. The Make All Channels Active and
Make All Channels Inactive menu items under the Edit menu can be used to simultaneously enable or
disable all channels.
➪
WBK17 Note -The On/Off column will contain a list of 8 different On/Off combinations, i.e., one for
each combination of the analog, counter low word, and counter high word values that can be acquired for
each WBK17 channel. The selected 16-bit values will be written to acquisition files and be available for
display in the Scope window. Only one of the selected values will be shown in WaveView’s Readings
Column. The complete contents of the “On/Off” list are: “Off”, “Volts (V)”, “CtrLo (L)”, “CtrHi (H)”,
“Volts and CtrLo (VL)”, “Volts and CtrHi (VH)”, “CtrLo and CtrHi (LH)”, and “Volts and CtrLo and
CltrHi (VLH)”. Long strings will fit in the selection list, but the On/Off column itself would use an
abbreviation, as follows: “Off”, “On;V”, “On:L” , “On:H” , “On:VL” , “On:VH” , “On:LH” , “On:VLH.”
Label -
This column contains a descriptive name for the input channel. By default, it contains a label
that is similar to its channel number, but this can be changed to any combination of 8 characters. Click on
the desired cell, and type in the desired label name.
➪
WBK17 Note -There will only be one user-defined label for all three 16-bit values. To distinguish
between the values: Volts, Counter Low, and Counter High, a “-V”, “-L” or “-H” is appended to the label.
Readings -
Not user configurable. This column displays values for all enabled channels.
➪
WBK17 Note -The Readings column will show, at most, one 16-bit value associated with the channel.
If the On/Off column selection indicates multiple 16-bit values, WaveView will make an automatic
selection of which value to display in the Readings column. This automatic selection will be according to
the following rule: the CtrLo value is preferred over the Volts value, and the CtrHi value is preferred over
the CtrLo value.
Unlike the Readings Column, acquisition data will include all selected WBK17 16-bit data channels.
For example, if “Volts and CtrLo and CtrHi” were selected as the “On/Off” value for all 8 channels of a
WBK17, the acquisition data file would contain data from twenty-four 16-bit channels.