Assignment Channels

Assignment Channels

Assignment channels are numeric or waveform channels which connect specific values or value ranges in the Assignments channel property with texts, for example, "Valve open" for the value range 5...10 [bar]. Use the mathematical function Numeric Channels <-> Assignment Channels to link numeric channels or waveform channels with assignments. This function reads the assignment texts from text channels, assignment channels, or Enumeration channels.

In the Data Portal you click the button with the three dots next to the channel property Assignments in order to edit assignments. In this dialog box you can create new assignments and assign value ranges to texts instead of to values and vice versa.

Use assignment channels to combine text channels with repeating texts and the index channel for the display of texts, in one channel. Use assignment channels for an optimized storage of index data and text in the DIAdem data cache and also in files (TDM-, TDMS-, MDF3-, MDF4-format). The Bus Log Convertor and the MDF3 and MDF4 DataPlugins support assignment channels.

Assignment channels in DIAdem can be explicit and registered channels. DIAdem treats assignment channels like numeric or waveform channels. DIAdem identifies assignment channels in the Data Portal with the following symbols:

	Waveform assignment channel
	Numeric assignment channel

If you convert the unit of an assignment channel in DIAdem ANALYSIS, DIAdem also converts the values or value ranges of the assignments into the new unit.

In DIAdem REPORT you can use assignment channels to label curves. To do so, select the display type Line and points in the curve and axis definition dialog box and the setting From channel on the Labels » Text tab, and then enter the assignment channel for Channel. You do not need to enter an index channel.

In DIAdem SCRIPT you can use the AssignmentChannel object in the object-oriented interface for internal data to read and edit assignments. For example, use the Values property to read texts and use the dValues property to read the values of the assignment.

Related Topics

Assignment Channel - Parameters

Enumeration Channels