B&B Electronics VFG3000 - Manual - Manual (Page 136)

P RIMITIVE D ESCRIPTIONS V LINX F IELDBUS G ATEWAY M ANAGER U SER M ANUAL
P AGE 120
The data logger primitive is configured via two property pages, shown below is the general
properties page.
• The Data Log property is used to select the data log to be displayed.
• The Sizing Mode property is used to indicate whether you wish to specify the
number of data points to be displayed, or whether you want the software to
display one data point for each horizontal pixel of the primitive. The Points to
Show property is used to specify the number of points to be displayed when the
Sizing Mode is so configured.
• The Show Channels property is used to specify an optional integer value that
controls which channels are displayed. If an expression is entered, channel n will
be shown if and only if the n
th bit of the value is set. The n th bit is defined as the
bit having the weight of 2 n , such that the lowest-order bit is bit 0. Bit 0 represents
the first tag in the list displayed in the Pens tab. Bit 1 would be the second tag in
the list.
• The Fill Format properties are used to define the background of the primitive.
• The Line Format properties are used to specify the format of the optional border
around the primitive. Note that these properties do no change the pens used to
draw the actual channel data: the colors of these lines are defined by the system.
• The Show Item property defines if the primitive should be displayed or not
depending of the expression.