Posted 31 Mar 2021 Hello, i need more information about possibility to connect a LC28 CPU with OpenVPN with Mikrotik. I checked tecnical information about TCP port and i wrote the NAT routes on the Mikrotik. I saw a little exchange of bit over 1217 and 1105 ports, but my Somachine (installed over VM) coudn't connect with PLC. Everything works fine with a local connection. We haven't any problem with other PLCs and our VPNs (Siemens, B&R, Mitsubishi). Someone have more information about TCP/UDP ports about Somachine protocoll ? Best regards, Ennio Share this post Link to post Share on other sites
Posted 5 Apr 2021 Depending on which protocol is supported by which PLC, this is a list of ports usually used: - 502 (Modbus TCP) - 8080 - 1105 and 1217 (SoMachine protocol) - 21 (FTP) - 161 (SNMP) Reference: https://www.se.com/ww/en/faqs/FA282892/ Share this post Link to post Share on other sites
