# S7-300 Profibus DP to Ignition? Helmholz NETLink **URL:** \ **Category:** Ignition\ **Created:** [October 23, 2018, 2:37pm UTC](https://forum.inductiveautomation.com/t/s7-300-profibus-dp-to-ignition-helmholz-netlink/20318 "2018-10-23T14:37:54Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![dano38291](https://avatars.discourse-cdn.com/v4/letter/d/9d8465/32.png) [@dano38291](https://forum.inductiveautomation.com/u/dano38291)\ **Post date:** [October 23, 2018, 2:37pm UTC](https://forum.inductiveautomation.com/t/s7-300-profibus-dp-to-ignition-helmholz-netlink/20318/1 "2018-10-23T14:37:54Z")
Hello, I have legacy piece of equipment with a Siemens S7-300 (CPU314C 2 DP). It appears others have used a NETLink on S7-300's. Has anyone else had success with using a NETLink to convert from Profibus DP on an S7-300 to Ignition S7 TCP driver? Also curious about the Ignition Driver. Appears the Helmholz NETLink device converts into an "S7-TCP/IP" or "RFC1006", is this what the Ignition S7 TCP/IP driver uses? > [@Netlink adapter for S7-300](http://forum.inductiveautomation.com/t/netlink-adapter-for-s7-300/3866): > > Hey All, Has anyone attempted to use the current Siemens OPC driver from Ignition and the Netlink Profibus to ethernet product from Helmholz to connect to S7-300 CPU’s. This looks like a very good solution for data collection from Siemens processors without an ethernet interface. [helmholz.de/prod.d,80\_92\_93.html?p\_id=84](http://www.helmholz.de/prod.d,80_92_93.html?p_id=84) [https://www.helmholz.de/fileadmin/documents/Technische\_Dokumentationen/700-88X-MPI21\_NETLink\_Ethernet\_Varianten/Manual\_NETLink-Ethernet-Products\_2\_EN.PDF](https://www.helmholz.de/fileadmin/documents/Technische_Dokumentationen/700-88X-MPI21_NETLink_Ethernet_Varianten/Manual_NETLink-Ethernet-Products_2_EN.PDF) See Section 3 If this works need to figure out how to add Ignition to NETLink's Application Examples. [https://www.helmholz.de/fileadmin/documents/Technische\_Dokumentationen/700-88X-MPI21\_NETLink\_Ethernet\_Varianten/Application\_Examples\_NETLink-PRO-family\_7.pdf](https://www.helmholz.de/fileadmin/documents/Technische_Dokumentationen/700-88X-MPI21_NETLink_Ethernet_Varianten/Application_Examples_NETLink-PRO-family_7.pdf) ---
**Author:** ![chi](https://avatars.discourse-cdn.com/v4/letter/c/0ea827/32.png) [@chi](https://forum.inductiveautomation.com/u/chi)\ **Post date:** [October 23, 2018, 2:58pm UTC](https://forum.inductiveautomation.com/t/s7-300-profibus-dp-to-ignition-helmholz-netlink/20318/2 "2018-10-23T14:58:29Z")
We are using the NetLink and a couple of similar devices with Ignition’s driver without problems. RFC 1006 is the connection protocol used by Siemens. I usually plug those devices to the MPI port. Using them in an ProfiBus Network requires carefully configuration.