Siemens SIMATIC ET 200SP Manual page 14

Product overview
2.2 Functions
Device replacement
Device replacement without topological configuration
The device name is also stored on the BusAdapter (BA 2×RJ45 or BA 2×FC or BA 2×SCRJ)
in addition to the interface module. A device name saved on the BusAdapter is the
requirement for device replacement without topological configuration.
Storing the name on the BusAdapter and the interface module produces a range of
scenarios for using the device name when the interface module is replaced.
Table 2- 2
BusAdapter empty
BusAdapter with device name
Be aware of the following constraints:
● Resetting to factory settings deletes the device name in both the interface module and the
BusAdapter. To prevent the device name from being deleted in the BusAdapter, you can
remove the BusAdapter from the interface module before resetting to factory settings.
● When a BusAdapter is replaced, a device name stored in the BusAdapter is applied to the
interface module after a POWER ON.
● Do not pull/plug the BusAdapter while under voltage. If you pull/plug the BusAdapter
while under voltage, the interface module restarts.
Device replacement with topological configuration
IO devices with this function can be replaced in a simple manner:
● The device name does not have to be assigned with the programming device.
The replaced IO device is assigned the device name by the IO controller and not by the
programming device. The IO controller uses the configured topology and the neighbor
relationships determined by the IO devices for this purpose. All involved devices must
support the LLDP protocol (Link Layer Discovery Protocol). The configured target topology
must match the actual topology.
IO devices that have already been used in another configuration should be reset to their
factory settings before reuse (see system manual ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/58649293)).
You can find more information on this topic in the STEP 7 online help and
● As of STEP 7 V12, in the PROFINET with STEP 7 V13
(http://support.automation.siemens.com/WW/view/en/49948856) function manual
● As of STEP 7 V5.5, in the system manual PROFINET System Description
(http://support.automation.siemens.com/WW/view/en/19292127)
14
Scenarios for using the device name
Interface module empty
No device name available
The device name from the
BusAdapter is used and copied
to the interface module.
Interface module with device
name
The device name from the inter-
face module is used and copied
to the BusAdapter.
The device name from the
BusAdapter is used and copied
to the interface module if this
has a different device name.
IM 155-6 PN ST interface module (6ES7155-6AU00-0BN0)
Manual, 12/2014, A5E03576904-AC