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Appendix 4. FieldServer ActiveX Controls
Appendix 4.1. Ana1
The Ana1 ActiveX displays the value of a data array element in a FieldServer. With appropriate permission a user may interact with the control to have the control change the value of the data array element in the FieldServer
•The ‘foreground’ and ‘background’ colors are configurable
•The control listens passively for messages sent by a FieldServer.
•The control reports its ‘comm.’ status by changing to grey and displaying ‘????’ if no recent data has been received.
Examples
Appendix 4.2. LED1
The LED1 ActiveX control changes color to indicate the value of a data array element in a FieldServer. With appropriate permission a user may interact with the control to have the control change the value of the data array element in the FieldServer
•The ‘on’ and ‘off’ color are configurable
•The ‘background’ color is configurable
•The control listens passively for messages sent by a FieldServer.
•The control reports its ‘comm.’ status by changing to grey if no recent data has been received.
Examples
Appendix 4.3. Char1
The Char1 ActiveX control displays a chart of up to 2 variables with a max of 300 points. With appropriate permission a user may store the most recent data set to a disk file.
•The axis labels are configurable
•Some formatting is configurable. For example, the user may select a format which treats the
•The X and Y axes are auto scaled.
•The control listens passively for messages sent by a FieldServer.
•The control reports its ‘comm.’ status so that viewer’s can tell if no recent data has been received.
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