1MAC108982-MB A
615 series ANSI
Engineering Manual
Table 1:
Ports that must be open in the firewall for different protocols
Protocol
File Transfer Protocol (FTP)
IEC 61850
Web Server HTTP
Simple Network Time Protocol (SNTP)
Modbus TCP
DNP TCP
Section 3
PCM600 tool
TCP port
20, 21
102
80
123
502
20000
23