Trend Line

The Trend Line function block provides for the forwarding of trends of the input signals for later use in the HMI dashboard. Any channels can be selected for forwarding; the number of channels can be controlled via NumChannels. One value per minute is then stored for each channel. This means that the function block is not suitable for signal forwarding, but rather for displaying trends for signals that change slowly.

Since the function of this function block is irrelevant for the analysis itself, it belongs to the Visualization Only category.

Optionally, a Boolean signal can be selected for the Enable Execution input so that the algorithm is only active if the value of the selected signal is TRUE.

Configuration options

• Num Channels: Indicates the number of configurable channels for forwarding the input signals.
• Channel 00: Indicates the name of the first channel to be forwarded. The name assigned here will later be used for this channel in the HMI Dashboard.
• Channel 01: Indicates the name of the second channel to be forwarded. The name assigned here will later be used for this channel in the HMI Dashboard.
• Channel 02: Indicates the name of the third channel to be forwarded. The name assigned here will later be used for this channel in the HMI Dashboard.
• Channel Name xx: Analog for all other channels.

Standard HMI Controls

For the algorithm Trend Line the following HMI Control is available for generating an Analytics Dashboard.

Trend Line to display the data over time.

No other HMI controls can be added to the function block, as it is intended exclusively for displaying the Trend Line Control.