Operator Controls And Display Elements; Front View Of The Cpu With Closed Front Flap - Siemens SIMATIC S7-155R/H Equipment Manual

2.4

Operator controls and display elements

2.4.1

Front view of the CPU with closed front flap

The following figure shows the front view of the CPU 1518HF-4 PN.
①
②
③
④
⑤
Figure 2-3
Note
Temperature range for display
To increase its service life, the display switches off at a temperature below the permitted
operating temperature of the device. When the display cools down, it automatically switches
itself on again. When the display is switched off, the LEDs continue to show the status of the
CPU.
For more information on the temperatures at which the display switches itself on and off,
refer to the Technical specifications (Page 33).
CPU 1518HF-4 PN (6ES7518-4JP00-0AB0)
Equipment Manual, 05/2021, A5E49868646-AA
LEDs for the current operating state and diagnostic status of the CPU
Front panel with display
Display
Control keys
Front panel of the X4 and X5 interfaces
View of CPU 1518HF-4 PN (with front panel) - front
2.4 Operator controls and display elements
Product overview
17