PXC network ports
TCP and UDP services can implement multiple applications. The port numbers are assigned to one of three categories by the IANA (www.iana.org)
- Well-Known ports (0…1023)
Reserved for specific applications and cannot be used by other applications. Examples: HTTP (80), SNMP (161) - Registered ports (1024…49151)
Reserved for specific applications and cannot be used by other applications. Example: BACnet (47808) - Dynamic/private ports (49152…65535)
Not predefined and can be used as needed.
Service | Transport protocol | Application protocol | Default port number | Port range | Direction | Configurable |
|---|---|---|---|---|---|---|
BACnet/IP | UDP | BACnet | 47808 | 47808 - 47823 | Inbound/ outbound | Yes |
BACnet/SC | TCP, TLS v1.3 | BACnet, WebSocket secure (WSS)/(HTTPS) | 47808* | - | Inbound/ outbound | Yes |
BACnet/IP for local broadcast | UDP | BACnet | 47874** | - | Inbound/ outbound | Yes |
Port for commissioning | UDP | Desigo Installation Configuration Protocol (DICP) | 30000, 30001*** | - | Inbound/ outbound | No |
Web Server (unsecure) | TCP | Hypertext Transfer Protocol (HTTP) | 80 | 0-1023 | Inbound/ outbound | Yes |
Web server (secure) | TCP, TLS v1.3 | Hypertext Transfer Protocol Secure (HTTPS) | 443 | 0-1023 | Inbound/ outbound | Yes |
Dynamic host configuration (client) | UDP | Dynamic Host Configuration Protocol (DHCP) | 68 67 | - | Inbound Outbound | No |
Domain name system | TCP, UDP | Domain Name System (DNS) | 53 | - | Inbound/ Outbound | No |
Simple network management | UDP | Simple Network Management Protocol (SNMP) | 161 162 | - | Inbound Outbound | No |
Network time | UDP | Network Time Protocol (NTP) | 123 | - | Outbound | No |
* BACnet/SC port: UDP port 47808 is available for BACnet/IP since the TCP port and UDP port do not collide.
** BACnet/IP for local broadcast: This is a local broadcast and not forwarded by BBMDs.
*** Port for commissioning: The Desigo Installation Configuration Protocol (DICP) uses a link-local protocol and is not forwarded. IT firewalls may block it in their ACL.