Siemens SIMATIC S7-1500/ET 200MP System Manual page 303

Maintenance
14.2 Replacing the display/front cover
The figure below shows an exemplary view of the CPU 1516-3 PN/DP.
①
Figure 14-2
Personal injury or material damage can occur in zone 2 hazardous areas
Personal injury or material damage can occur in hazardous are zone 2 if you remove or fit
the front panel while the S7-1500 automation system is running.
Before you remove or fit the front panel, always switch off the power supply to the S7-1500
automation system in hazardous area zone 2.
302
Fasteners for removing and fitting the front panel
Removing and fitting the front panel
WARNING
Automation system
System Manual, 01/2023, A5E03461182-AK