Siemens SIMATIC S7-1500 System Manual page 198

CPU display
The figure below shows an exemplary view of the CPU 1516-3 PN/DP.
①
Figure 12-2
P ersonal 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.
198
Fasteners for removing and fitting the front panel
Removing and fitting the front panel
WA RNING
Automation system
System Manual, 09/2016, A5E03461182-AD