9/15/2019 3:13 PM | |
Joined: 9/21/2012 Last visit: 9/23/2024 Posts: 4161 Rating: (464) |
If you don't need Topology, the X-100 series is enough for you. If you need Topology, then X-200 series. |
9/15/2019 3:56 PM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello oleksander; Our friend Hati has been using the terms "Topology" and "LLDP" to explain the suitability of the Scalance X-100 and X-200 switches for Profinet. Maybe this should be clarified. The X-100 switches do not support LLDP (Link layer Discovery Protocol), for which you can find explanations here: https://en.wikipedia.org/wiki/Link_Layer_Discovery_Protocol Because LLDP is not available, an IO controller cannot "read" the presence of X-100 switches in the network, cannot attribute it a Profinet Name or IP Address, cannot replavce a switch automatically if you replace it physically... in other words, the X-100 cannot use the Topology features of Profinet. How do unmanaged IE switches behave with regard to LLDP messages for topology identification? https://support.industry.siemens.com/cs/ww/en/view/109483263 The following manual documents the specialized Profinet functionalities supported by the X-200 (not by the X-100): SIMATIC NET: Industrial Ethernet switches SCALANCE X-200 https://support.industry.siemens.com/cs/ww/en/view/109757352 If you do not require these features, a Scalance X-100 (or any off-the-shelf commercial/industrial switch) can be setup in a Profinet network. If Topology is required in your Profinet network, then you need at least a X-200 switch. Hope this helps, |
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