Ports, protocols and connections

Ports, protocols and connections

UMG 604 / UMG 605 / UMG 508 / UMG 511

Protocols Ports
TFTP 1201
Modbus / TCP – Modbus / UDP 502, 4 Ports
DHCP 68
NTP 123
BACnet 47808
Nameservice 1200
HTTP 80
FTP 21
FTP data port 1024, 1025
FTP data port 1026, 1027
Modbus over Ethernet 8000, 1 Port
Service port (telnet) 1239
SNMP 161 / 162 (TRAP)
E-Mail port (actual) 25
E-Mail port (in preparation) 587

UMG 103 / UMG 104

Protocols Ports
The devices do not have an Ethernet connection The devices do not have an Ethernet connection

GridVis®

Protocols Ports
Modbus / TCP – Modbus / UDP 502
HTTP 80
FTP 21
FTP data port 1024, 1025
FTP data port 1026, 1027
Modbus / TCP 502
Modbus over Ethernet 8000
Read out telnet data port 1239
Update telnet data port 1236, 1237
E-Mail port (in preparation) 25
E-Mail port (in preparation) 587
Fig.: TCP group: max. 24 connections (queue scheduling) (UMG 604 / 605 / 508 / 511)
Fig.: TCP group: max. 24 connections (queue scheduling) (UMG 604 / 605 / 508 / 511)

Number of TCP/UTP connections (UMG 604 / 605 / 508 / 511)

  • A max. total of 24 connections are possible via the TCP group. The following applies:
    • Port 21 (FTP): max. 4 connections
    • Port 25/587 (E-Mail): max. 8 connections
    • Port 1024-1027 (data port to every FTP port): max. 4 connections - Port 80 (HTTP): max. 24 connections
    • Port 502 (ModbusTCP/IP): max. 4 connections
    • Port 1239 (Debug): max. 1 connection
    • Port 8000 (Modbus orTCP/IP): max. 1 connection

Fig.: UTP group: Connection-free communication (UMG 604 / 605 / 508 / 511)
Fig.: UTP group: Connection-free communication (UMG 604 / 605 / 508 / 511)
  • Connection-free communication via the UTP group
    • Port 68 (DHCP)
    • Port 123 (NTP)
    • Port 161/162 (SNMP)
    • Port 1200 (Nameservice) - Port 1201 (TFTP)
    • Port 47808 (BACnet)

The UMG 96RM-E supports the following protocols via Ethernet connection

Client services Ports
DNS 53 (UDP / TCP)
DHCP-Client (BootP) 68 (UDP)
NTP (Client) 123 (UDP)
E-Mail (sending) Selectable (1-65535 TCP)
Server services Ports
Ping ICMP / IP)
FTP 20 (TCP)*, 21 (TCP)
HTTP 80 (TCP)
NTP (only listen) 123 (UDP Broadcast)
SNMP 161 (UDP)
Modbus TCP 502 (UDP / TCP)
Geräte-Identifikation 1111 (UDP)
Telnet 1239 (TCP)
Modbus RTU (Ethernet encapsulated) 8000 (UDP)

* Random port (> 1023) for data transfer, if work is taking place in PASSIVE mode

The UMG 96RM-E can administrate 20TCP connections.

Client services are contacted by a device on a server via the specified ports, the server services make the device available.

The following protocols are not supported. BACnet (47808 / UDP)

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