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Scan for devices
The BACnet driver supports to scan for BACnet devices within the current network broadcast domain. During the scan, all ports between 0xBAC0 and 0xBACF will be scanned (if the scanPort property is not set).
The BACnet port used for the device scan can also be set using the system property org.openmucextensions.driver.bacnet.port. If the property has been set, only the specified port will be scanned, unless another port has been specifeid within the setting string (scanPort property). The following examples show the possible combinations:
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No system property port has been set and the device scan setting string doesn't contain the scanPort property: all ports between 0xBAC0 and 0xBACF will be scanned
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System property port has been set and the device scan setting string doesn't contain the scanPort property: only the port specified in the system property will be scanned
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System property port has been set and the device scan setting string contains the scanPort property: only the port sepcified in the setting string will be scanned
The following (optional) settings may be applied when performing a devices scan. Multiple settings may be separated using the ";" char.
| Property key | Description | Default value |
|---|---|---|
| discoverySleepTime | Sleep time to wait for discovery responses during scan (in ms) | 2000 |
| scanPort | Single UDP port for scanning | (default all ports between 0xBAC0 and 0xBACF will be scanned) |
| broadcastIP | IP address that will be used for sending broadcast messages | 255.255.255.255 |
If the scanPort property is set, only the specified port will be scanned.
discoverySleepTime=3000;scanPort=0xBAC0