Siemens SIMATIC NET S7-400 Manual page 40

Installation and commissioning
5.2 Installation - procedure
Follow the steps outlined below:
1. Turn off the power supply when you have configured the CP for PROFINET IO
communication.
2. Plugging in the CP:
Fit in the CP onto the rack from the top and push it in at the bottom.
Note
Racks / suitable slots in the rack
• The CP can be plugged into all racks with slots for P and K bus attachment.
• With the exception of the slots reserved for the power supply, the CP can be operated
Note
When using the universal rack UR1 or UR2 as an expansion rack, a communication bus
transceiver is necessary!
3. Secure the CP with screws.
4. Turn on the power supply.
40
NOTICE
CP as PROFINET IO controller when used with a CPU version < V6.0
When installing the CP for use as a PROFINET IO controller with a CPU version < V6.0,
note the following points about the power supply:
When using the CP in the central rack or in a universal rack operating as central rack,
you should not insert or remove the CP when the power is on. If you remove the CP
when the power supply is on, the CPU changes to STOP and indicates "I/O error".
After inserting the module with power applied, it is essential to turn the power supply off
and on again.
Note:
If the CP is operated without PROFINET IO, it is possible to insert and remove the CP
when the power is on without affecting the CPU.
in all slots with a P and K bus attachment. Depending on which CPU you use, there
may be other limitations.
CP 443-1 (EX30)
Manual, 03/2019, C79000-G8976-C255-05