Threshold Templates

The threshold template displays the current voltage thresholds for the module. When adding or modifying a threshold template, apply the same value to all channels of a module or define individual values for each channel.

Input modules monitor and calculate the voltage level from the field at each channel to determine the appropriate state to report to the TMR Processor. After calculating the input channel voltage, a state is then determined based on the channel threshold settings. There are eight possible states (0 to 7). The following example displays state thresholds for a line monitored digital input switch configuration:

There are fixed minimum (Tmin) and maximum (Tmax) thresholds for the module. Each channel has eight configurable thresholds. Each state transition has a hysteresis, as seen in gray in the example above.

Apply the following rules when configuring thresholds:

When using the

Threshold Template Editor

, use the following syntax to define the same threshold values for all channels:

Use the following syntax to define individual channel thresholds:

The bar graph displays the current voltage thresholds. Modify the values by either dragging the horizontal lines on the bar graph or by entering the voltage values. Use the scroll bar to display the threshold settings.