Siemens Simatic S7-400

Installation Guidelines
The general installation guidelines for S7-400 must be followed (see the S7-400 Automation
System, Installation Installation manual).
To meet the EMC (electromagnetic compatibility) values, the cable shield must be connected to
a shield bus.
4.2.1 Installation steps
To mount the communication processor in a rack, proceed as follows:
1. Remove the 󹪝ller panel from the slot you want to use by gripping it where marked and pulling
it toward you. Insert the CP 441 module and tilt it downward.
2. Hang the communication processor in the rack and swing it down.
3. Screw down the module at the top and bottom with a torque of 0.8 to 1.1 Nm.
4.2.2 Removal steps
To remove the communication processor from the rack, proceed as follows:
1. Undo the screws at the top and bottom of the module.
2. Tilt the module upward and remove it.
3. Replace the 󹪝ller panel over the empty slot.
Mounting the CP 440
4.2 Mounting and Dismounting the CP 440
Point-to-point connection CP 440 Installation and Parameter Assignment
54 Equipment Manual, 03/2022, A5E00057742-AE