### BACnet Modeled Pulse Converter 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 | Display microblocks
Icon and symbol |
What it does | This microblock defines a standardized object that represents a process in which measurements represented by pulses or counts, such as electric power, might be monitored at intervals for applications such as peak load management that require periodic measurements but not a precise accounting of every input pulse or count. The link to the device is established in SiteBuilder. The link to a specific BACnet object in that device is the Object Instance setting described below. A Display microblock is most often used to display information from other vendor's equipment on Graphics and Properties pages. The operator can then read and write to the equipment as appropriate. This microblock can be used to import multiple properties from a single object, but to prevent unnecessary network traffic you should import only properties that are actually needed for the intended task. Use the checkboxes in the Present column to select which properties to get.
#### 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.
Display Name | The microblock label used in the EIKON® application and the WebCTRL® interface. You can use any characters except the " character.
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
Description | (optional) A BACnet-visible microblock description.
Lock Present Value | Check to output the locked value from the microblock instead of the microblock's calculated value.
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.
Object Instance | The instance number (0 to 4,194,303) of the BACnet object you are linking to.
Device Alias | This field represents the address of the BACnet device from which this microblock will retrieve its values. You can type the Device Instance of the BACnet device or the Device Alias character string defined in a Device Alias microblock. If you leave this field blank, the system will use “this” in the Display microblock’s BACnet address and retrieve this microblock’s values from the device to which the microblock’s control program is attached in SiteBuilder.
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.
BACnet object properties | Select the checkbox in the Present column to show the BACnet object property on the WebCTRL® or Field Assistant Properties page. Properties that do not have a checkbox in the Present column are always shown. CAUTION If you select a property that is not in the BACnet device, you will get an error in WebCTRL® or Field Assistant. Select the checkbox in the Write to Field column to make the property editable from the WebCTRL® or Field Assistant Properties page. CAUTION If you select Write to Field for a property that is read-only in the BACnet device, you will get an error in WebCTRL® or Field Assistant.
The following properties are always present. See the ANSI / ASHRAE Standard 135 for a description of additional properties that can be enabled in EIKON® for WebCTRL.
Object Name | An alpha-numeric string that is unique within the BACnet device.
Present Value | The current value of the BACnet object.
Status Flags | Status Flags indicate the current state of the BACnet object.
Event State | The current alarm state (Normal, Offnormal, Fault) of the BACnet object.
Out of Service | Lets you stop the BACnet object from reading the physical sensor's value so that you can override the logical value in the BACnet device by changing the Present Value in WebCTRL® or Field Assistant.
Units | The BACnet engineering unit of measurement of the microblock's present value.
Scale factor | The conversion factor to turn the pulse count into the units specified for the Present Value.
Adjust value | Lets you enter a value that adjusts the Present Value and the Count property.
Count | The current pulse count.
Update time | The date and time of the most recent pulse count.
Count change time | The date and time of the most recent change using the Adjust value property.
Count before change | The pulse count before any change using the Adjust value property.
Object ID | A combination of the Object Type and the Object Instance number.
Address | The address of the BACnet object that this microblock references.