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Entry type: FAQ Entry ID: 36752540, Entry date: 05/16/2018
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Which PROFINET nodes support automatic commissioning (device replacement without interchangeable medium) with topological configuration and device replacement without topological configuration?

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Automatic commissioning (device replacement without interchangeable medium) with topological configuration and device replacement without topological configuration?

The replacement IO device receives the device name from the IO controller and not from the interchangeable medium or the PG. For this the IO controller uses the configured topology and the neighbor relationships determined by the IO devices. Here, all the participating devices must support the LLDP (Link Layer Discovery Protocol). The configured nominal topology must match the actual topology.

The following IO controllers support automatic commissioning (device replacement without interchangeable medium):

  36752540_profinet_io_controller_list_en.pdf (70.7 KB)

The following IO devices support automatic commissioning (device replacement without interchangeable medium):

  36752540_profinet_io_device_list_en.pdf (70.0 KB)

Device replacement without topological configuration

ET 200SP
If the device name is saved in addition on the bus adapter (BA 2xRJ45 or 2xFC) of the interface module, you can replace it without PG and without topological configuration.
By saving on the bus adapter and on the interface module you have different scenarios when using the device name.
 

Interface module empty Interface module with device name
Bus adapter or server module empty No device name available. Device name from interface module is used and copied to the bus adapter or server module.
Bus adapter or server module with device name Device name from bus adapter or server module is used and copied to interface module. Device name from the bus adapter or server module is used and copied to the interface module if this includes a different device name.

Table 1

With the interface module below the device name is stored in addition on the bus adapter or server module:

  • ET 200SP IM 155-6 PN BA
  • ET 200SP IM 155-6 PN ST with article number 6ES7155-6AA00-0BN0 and 6ES7155-6AU00-0BN0 firmware V3.1 and higher
  • ET 200SP IM 155-6 PN ST with article number 6ES7155-6AA01-0BN0 and 6ES7155-6AU01-0BN0

  • ET 200SP IM 155-6 PN HF with article number 6ES7155-6AU00-0CN0 firmware V2.0 and higher

  • ET 200SP IM 155-6 PN HA

ET 200pro
The following interface modules and connection modules each have an internal memory in which the device name is stored.

  • Interface module IM154-4 PN High Feature and the connection modules CM IM PN M12 7/8" and CM IM PN PP Cu
  • Interface module IM154-3 PN High Feature and the connection module CM IM PN M12 7/8" S

Therefore there are different scenarios for the validity of the device name when replacing a module without PG.
 

Device name scenarios Validity of the device name
Device name in CM and IM = empty MAC address (no device name)
Device name in CM=IM or IM=CM Device name CM
Device name in CM≠IM or IM≠CM Device name CM
Device name in CM=ok and in IM=empty Device name CM
Device name in IM=ok and in CM=empty Device name IM

Table 2

Automatic commissioning (device replacement without interchangeable medium) with topological configuration
IO devices which support automatic commissioning (device replacement without interchangeable medium) can be easily replaced.
These IO devices are distinguished by the following properties:

  • There is no need for an interchangeable medium (Micro Memory Card, for example) with saved device name.
  • The device name does not have to be assigned to the PG.
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