### Integrator The information below provides a FULL description of this microblock and all of its properties. What information you see and what you can do with it depends on your license and the application you are in, and in some cases, a controller's driver version.
Microblock family | Math 2 microblocks
Icon and symbol |
What it does | An Integrator microblock calculates a value over time (minutes or hours) at the rate (units/minute or units/hour) you select in the EIKON® application. For example, if the microblock's input value is constant at 10, and the selected rate is units per hour, the microblock's output increases at a rate of 10 per hour. If the microblock’s input value is constant at 10 and the selected rate is units per minute, the microblock’s output increases at a rate of 10 per minute. At the end of the first hour, the output value is 10; at the end of the second hour, the output is 20, and so on. When the clr input turns on, the microblock's output value is reset to zero.
Click for details below How it works Limitations Properties Tips and tricks
#### How it works The microblock accumulates the wire input value at every execution of the control program. If the selected rate is once per minute, on a one minute interval the microblock divides the total accumulated input by the number of executions during that minute, then increases the wire output value by the average input value for the minute. If the selected rate is once per hour, the microblock increases the output value every minute by 1/60th of the averaged input value for the minute.
#### Limitations In drivers 4.x or later, the integrator microblock retains its output magnitude through a power loss, controller reset, or controller restart. You can reset the microblock’s output value to zero using a "true" value on the clr input, or by downloading to the controller.
#### Properties TIPS Alt+click any value in the WebCTRL® or Field Assistant interface to view property details, including its editing privilege and expression (location path) for use on graphics. You can right-click some properties in the EIKON® Property Editor and select Make editable or Make read-only to determine that property's functionality in your system.
Reference Name RefName | Use the default reference name unless you want a more descriptive name for graphics or network links. Limitations: lower case only limited to 40 characters cannot begin with a number must be unique within a control program
Editing Privilege | Preset - Each microblock property has an appropriate privilege or role assigned to it. You can use Global Modify in the WebCTRL® interface to find out what the actual privilege is. CAUTION If you change the Editing Privilege from Preset, the privilege you select will be used for all properties of this microblock, which is not always desirable.
Display resolution | The microblock's value is truncated and incrementally updated as follows: The Display resolution format is used to truncate the microblock’s actual value. For example, if you enter a value from: 0.1 to 0.9, the system displays 1 digit to the right of the decimal 0.01 to 0.99, the system displays 2 digits to the right of the decimal 1 or greater, the system displays a whole number The Display resolution value determines the increment by which the displayed value is updated. For example, if you enter: .2, the system displays 8.4, 8.6, 8.8, ... .03, the system displays 5.09, 5.12, 5.15, ... 10, the system displays 30, 40, 50, ...
Rate | Select the accumulation rate that this microblock is to use.
Property Page Text
Show Property Page Text | Check to show this microblock's value on the equipment's Properties page.
Property Page Text | You can edit the microblock description that appears on the Properties page. See "Editing Properties page text using special characters" and "Formatting a microblock property" in EIKON® Help.
#### Tips and tricks Metering You can use the integrator microblock in combination with a peak recorder to accumulate and record meter demand and consumption at regular intervals. The example below records hourly accumulation.