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Message rules define, if and when messages are generated. You can describe those rules with the help of QUDE (QBRX universal data point editor) QUDE is a versatile tool for the creation of various evaluation rules. There are almost no restriction for the creation of new rules. In this article, we'll be talking about the creation of a new message rule in QUDE. As an example, we define a rule that warns us, once the outside temperature of your facility is 0°C (32°F) or below. Opening QUDE Before working with QUDE, you have to open the tool. Go to the message board of your designated facility and select the gear wheel-button on the right side. You are send to the message rule board. Create a new message rule by clicking on the plus-button and/or choose a message rule and click on the puzzle-button. Example 1: simple message rules without conditionsFor this example, we create a message rule that generates a new message whenever the outdoor temperature of your facility is 0°C (32°F) or below. The freezing point is relevant for various situations and the evaluation rule only consists of a few bricks. You'll need four bricks: one evaluation, one for comparisons, one for numeric data points and a constant.
From now on, a message is generated whenever the outdoor temperature reaches 0°C and decreases further on. You can change these settings anytime.
Example 2: message rules with conditionsNow, we create similar message rules for the same example. However, this time we'll be using more parameters and a condintion brick. The new parameters are "true" and "false" for rule 1 and "1" and "2" for rule 2. We use them to define even more accurately if a certain situation occured. "1" and "true" always confirm such an occurence and trigger the creation of a fitting message. "0" and "false" confirm, that nothing predefined occured and therefore won't trigger a message. You'll need six bricksfor both rules: two result bricks, one brick for conitions with exceptions, one for comparisons, one for numeric data points and a constant.
Select "Save" in the lower right corner to save your changes. From now on, a message is generated whenever the outdoor temperature reaches 0°C and decreases further on. You can change these settings anytime. |