Siemens S7-1200 Operating Instructions Manual page 39

Procedure for installation and commissioning
NOTICE
Installation location
The module must be installed so that its upper and lower ventilation slits are not covered,
allowing adequate ventilation. Above and below the device, there must be a clearance of 25
mm to allow air to circulate and prevent overheating.
Remember that the permitted temperature ranges depend on the position of the installed
device. You will find the permitted temperature ranges in the section General technical
specifications (Page 113).
Installation of the rack
Horizontal installation of the rack
Vertical installation of the rack
Note
Connection with power off
Only wire up the S7-1200 with the power turned off.
Note
Power supply from the power outputs of the CPU
The external power supply of the CP must be supplied via the power outputs of the CPU.
Keep within the maximum load of the power outputs of the CPU.
You will find data relating to the current consumption and power loss of the CP in the section
General technical specifications (Page 113).
CP 1243-7 LTE
Operating Instructions, 01/2015, C79000-G8976-C381-01
Installation, connecting up, commissioning
3.2 Installing the CP and commissioning
Installation position of the CP
39