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The more detailed description of the parameters is stated in a the literature.
The acknowledgement acknowledgment is executed by the writing of above-mentioned sequence to the text of output I/O tag according to the record of any ASN sequence.
Example: The loading of list of alarms and events with the help of GetEventInformation:
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Note: in the specific case, when acknowledging the alarm, the DESIGO PXC 100E.D device required the day of the week to be specified within the date (eg D8.6.2020.1 for Monday). A default value of 255 (unspecified) of a day of the week, which is sent when the day is not specified, did not suit the device when acknowledging the alarm.
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caching
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If the station has at least one I/O tag with Address Type = Name, the numerical address is detected by Who-Has-Request from ObjectName when initializing these I/O tags. After getting the address, the data (the quadruplet ObjectName; Object Type; Instance; DeviceInstance) are is saved to the cache file and are is available for the next starting start of KOM process.
For each station there exists There is one cache file for every station. It is placed located in an application directory, in a subdirectory Cache. Its name is Cache_station_name.txt, e.g. Cache_B.StationX1.txt.
When saving a BACnet station, the data are is reloaded from this file. If the file was not found, the Who-Has messages are generated to for all I/O tags that contain Address Type = Name in this station.
This behavior may be used after changing the configuration of the device which communicates with the KOM process (if the addresses of objects was were changed when changing the configuration). Just delete the cache file in this station and save it - within several seconds the cache file occurs will be created again and is it will be filled with the acquired data.
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If the parameter Subscribe/read is marked off in the I/O tag, the cache is not searched and the Who-Has-Request message is sent to the communication. The obtained information is not written to the cache. It is important only can be used for the objects that generate are generated and vanish deleted dynamically, which would overflow otherwise contest the cache.
If Subscribe/read is not marked offenabled, the cache is searched. If ObjectName or ObjectIdentifier was not found, the Who-Has-Request message is sent to the communication. If the respond comes, the information is written into the cache.
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The test configuration included a DSC-1212E device connected to the local network Ethernet and a DAC-633 device connected to DSC-1212E over MS/TP interface (RS-485). D2000 KOM communicated directly with DSC-1212E and DAC-633 over DSC-1212E (it performed the function of a BACnet router).
We used the software ORCAview 3.30 Build 1481 from which we detected the following configuration information:
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I logged After logging on to the ORCAview and found finding a DSC-1212E device. Then , the object BACnet Settings 3200 (3200 is a software address of the particular device) occurred can be found in the right panel in pane of the Navigator dialog window. Clicking on BACnet Settings 3200 opened the dialog window which contained several tabs. The Setup tab included also the port UDP/IP port type. After I had clicked on clickin it, its parameters are displayed in the bottom of the window, e.g. Network (during the testing, we saw a specific number 40032), IP Address and UDP Port.
When communicating with DSC-1212E, in D2000 configuration of the station I could set the Source network could be either set to the value of Network or notleft empty. The parameters IP Address and UDP Port parameters must be used to set configure the parameters Address and Port parameters in the station configuration in D2000. A station type was BACnet/IP.
Note: On theAdvanced tab Advanced - BACnet Properties, in the BACnet Properties area, the parameter Local Netwok Number was set on to 10032 (it was the same as the parameter Network Network port of the port the Ethernet type on the Setup tab Setup). This port is used for communication BACnet over Ethernet communication (without the use of IP protocol), which is not supported in D2000 yet.
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