This page may be used as soon as a device is selected on the Who-Is page. The device does not have to be a BB3-3101 in order to use the generic object property read/write on this page. This can be a useful diagnostic for any BACnet device.
Select object type, instance, property, and array index if any, and then click ‘Read Property’. If the request is successful, the data will be displayed in the log window at the bottom.
A collection of most often used property types are included in the drop list. If the desired property is not shown, select ‘Other-->’ and enter the property type code in the window next to the list. The property type codes are those defined by the BACnet standard. For example, Present Value can also be obtained using ‘Other --> 85’.
Select all of the same settings as you would for Read Property, and in addition, specify data type, priority (if commandable, use ‘none’ if not commandable), and data to write. Then click ‘Write Property’.
Format for most data types is simply a numeric string. The data type ‘character string’ will consume everything found in the data window as ASCII text copied verbatim. Octet strings should consist of 8-bit values in hexadecimal notation (1 to 3 hex digits), with each octet separated by a comma. Bit strings should consist of a series of T and F characters, optionally separated by a comma. The first T or F is bit zero.
