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grig100 · Member 3 Joined: 01 Jan 2015 Posts: 752

Which ports are used by the various services for data transfer by means of TCP and UDP and what should you watch out for when using routers and firewalls?
When data is transferred via routers or firewalls the port has to be enabled in the router or firewall according to the service used.
Ports used for TCP and UDP data transfer Ports used for TCP and UDP data transfer

Ports used for TCP and UDP data transfer Ports used for TCP and UDP data transfer

1)The integrated FTP server is for downloading the firmware into the module.
2) Information about which Industrial Ethernet CPs support these services is available in the following entries:
https://support.industry.siemens.com/cs/document/16767769/what-differences-are-there-between-the-industrial-ethernet-cps-of-simatic-s7-300
und
https://support.industry.siemens.com/cs/document/15368142/what-differences-are-there-between-the-industrial-ethernet-cps-of-simatic-s7-400

3) The FTP service is supported by IT CPs and Advanced CPs.
4) The Modbus TCP service is supported with the "OPEN MODBUS / TCP CP" product. You can find more information about OPEN MODBUS / TCP communication in
https://support.industry.siemens.com/cs/document/22660304/how-do-you-establish-open-modbus-tcp-communication-from-a-simatic-s7-300-s7-400-and-where-can-you-find-further-information
5) This service is supported only by IE/AS-i Link.
6) This service is supported only by IE/PB Link and IWLAN/PB Link.
7) This service is supported only by IWLAN/PB Link.
8) SCALANCE X and SCALANCE W support the Simple Network Time Protocol (SNTP), the simple form of the Network Time Protocol (NTP).
9) SCALANCE W in compliance with IEEE 802.11n supports Network Time Protocol (NTP). An overview of the SIMATIC NET Industrial Wireless LAN components in compliance with IEEE 802.11n is available in Entry ID: 56692761.
10) SCALANCE X-300, X-400 and X-500 can be used as Syslog client.
11) The Modbus TCP service is supported with the "OPEN MODBUS / TCP CP" product. You can find more information about OPEN MODBUS / TCP communication in
https://support.industry.siemens.com/cs/document/22660304/how-do-you-establish-open-modbus-tcp-communication-from-a-simatic-s7-300-s7-400-and-where-can-you-find-further-information
12) Information about which CPUs support this service is available in
https://support.industry.siemens.com/cs/document/18909487/which-communication-services-are-supported-by-the-cpus-with-integrated-profinet-interface-the-s7-software-controller-and-by-the-winac-rtx-via-industrial-ethernet