Template Edit
Template Edit allows the operator to edit an existing template, or create a new template. A template is the number of variables displayed on one screen. For example this could be a control, overtemp, or load thermocouple on a batch furnace. Or it could be one thermocouple from eight temper furnaces. There is not a maximum for template selections, but the number of variables displayed on one screen must be a consideration in this process.
To create a template the Add key is pressed which allows the operator to configure the following parameters.
-
Name – the name of the input, for example “Control T/C” which should be changed to the least amount of understood characters “Ctl T/C”
-
Input - the analog input that is being configured, for example on a VR5 this could be a channel from one through five. The list of options is: TC 1 – TC 40, Averager Group 1 – Averager Group 3, Totalizer 1 – Totalizer 10, and Function Based Timer 1 – Function Based Timer 5. Plus, with version 3.11+ of the screen software, Client 1 Process Variable, Client 1 Setpoint, Client 1 % Output – Client 10 Process Variable, Client 10 Setpoint, Client 10 % Output are available for versions 2.01+ on the VR Brick.
-
Min – the minimum displayed scale value on a chart -
Max – the maximum displayed scale value on a chart
-
Expression – every input requires an expression to be calculated and displayed correctly. For example an expression for thermocouple inputs would be x *.1. Use the onscreen keyboard to enter an expression.
-
Expression Wizard – This feature will allow the operator to build an expression using either a custom curve or a regular expression. See the “Note About Expression Wizard” below for more information about this feature.
-
Line Format – the value displayed on the chart display of the operator interface. A short custom description can be added here. For example, to display one (1) decimal point, enter a value of “#0.0”. For carbon values, enter a value of “#0.00” for 2 decimals. This would display a value like “0.81”. Entering “#.00” would display a value of “.81”.
-
Units – The type of units used for the trend.
-
Line Width – a numeric value for the thickness of the trend line. A 1 is a thin line; A higher value = thicker line width.
-
Sample – a number is entered here to test the expression.
-
Test – Press the test button to calculate the expression with the value entered in the sample parameter. For example with and expression of x*.1 and a value of 250 entered in the sample parameter will display a 25.0