A recipe is a collection of 50 Variable signal tags and their values or states. Each Variable is either a digital or analog element in a control configuration, acting as an input to any connected function blocks. When a recipe is loaded, the values or states of the signal tags in the recipe replace the values of those signals in the controller Also known as remote terminal unit, RTU. A generic term for a device that is used to control and monitor one or more processes in field equipment. The most common control and monitoring device in an access control and security system is an access control panel. Other devices include security monitoring panels, elevator controllers, and fire monitoring devices. Controllers include programmable logic controllers (PLCs), loop controllers, bar code readers, and scientific analyzers. See also: C200 controller, control processor, CPM, hybrid controller, network node controller, PLC.'s configuration.
Up to 1,000 recipes can be created and maintained using the Station Experion's main operator interface. Station presents information using a series of displays. See also: display. HC900 Hybrid controller. and UMC800 Recipe Configuration displays.
To configure a recipe
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In Station, select ConfigureApplicationsHC900/UMC800Recipes (Variables Only).
The Recipe Selection display opens.
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Click the recipe that you want to configure or modify, or click a blank slot to create a new recipe.
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Click on the recipe name to load its configuration.
When the Recipe Configuration display opens, the server The computer on which the Experion database software and server utilities run. See also: Experion server TPS. attempts to read a list of all variables from the currently selected Compatible controller. If the controller is not a valid HC900 or UMC800 controller or the upload fails, an alarm An indication (visual and/or audible) that alerts an operator at a Station of an abnormal or critical condition. Each alarm has a type and a priority. Alarms can be assigned either to individual points or for system-wide conditions, such as a controller communications failure. Alarms can be viewed on a Station display and included in reports. Experion classifies alarms into the following types: - PV Limit - Unreasonable High and Unreasonable Low - Control Failure - External Change. is raised.
The variable list does not overwrite any of the variables configured in the current recipe, nor do variables in the recipe need to be members of the list. Instead, the list is used to provide default selections in the 'Variable' boxes to help when configuring a recipe.
By changing the controller selection from the Compatible controller drop-down list, the server attempts to read a new list of variables from the controller. If the controller is not a valid HC900 or UMC800 controller or the upload fails, an alarm is raised.
ATTENTION: Only the first 75 variables configured on an HC900 are used to populate the variable list. While additional variables (up to 255) are not visible in the list, they can still be added to a recipe.
HC900 controllers prior to Rev 4.0 firmware support 8–character variable names. HC900 controllers Rev 4.0 and above support 16–character variable names.
The recipe download will fail if the variable name does not exist in the controller or a variable name is repeated in the recipe.
Download to controller
Allows the user to download the current recipe to an HC900 or a UMC800 controller. A recipe can be downloaded to any controller, not just the 'Compatible controller.' See the topic titled "Downloading a recipe" for information on downloading a recipe.
See the topic titled "Configuring a combined recipe" for information on configuring a recipe for use in a combined recipe.