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7.2
Replacing a defective PN/MF Coupler
Introduction
For a new PN/MF Coupler, the R/W objects (I&M, SNMP and parameter assignment data) in
the PN/MF Coupler are set to factory settings.
Replacement part case
You must bring a previously used PN/MF Coupler to the "Reset to factory settings" state before
using it is as a replacement part.
Procedure
To replace a defective PN/MF Coupler, follow these steps:
1. De-energize the PN/MF Coupler.
2. Unscrew the BusAdapter.
3. Remove the BusAdapter from the PROFINET IO interfaces of the defective PN/MF Coupler.
4. Remove the power supply of the defective PN/MF Coupler.
5. Replace the defective PN/MF Coupler.
6. Plug the BusAdapters onto the PROFINET IO interfaces of the new PN/MF Coupler and screw
them in place.
7. Connect the power supply connection to the new PN/MF Coupler.
8. Switch on the voltage again.
PN/MF Coupler
Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
Operation and maintenance
7.2 Replacing a defective PN/MF Coupler
107
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