Siemens SIMATIC NETS7-1200 Operating Instructions Manual page 30

Installing, connecting up and commissioning
3.3 Installing and commissioning the CP
Procedure for installation and commissioning
CAUTION
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.
Device position / permitted temperature range
Horizontal installation of the rack:
0 °C to 55 °C
Vertical installation of the rack:
0 °C to 45 °C
NOTICE
Connection with power off
Only wire up the S7-1200 with the power turned off.
Power supply from the power outputs of the CPU
The 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 Technical specifications (Page 75).
30
Installation location
Operating Instructions, 09/2011, C79000-G8976-C247-02
CP 1242-7