Siemens SINUMERIK ONE NCU 1740 Equipment Manual page 129

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②
③
④
⑤
⑥
Figure 12-12
Note
The type plate is located on the rear side of the mounting plate. It is advisable to make a note of
relevant data as it is no longer visible after installation.
LED displays
Each PROFINET port has two integrated LEDs displaying the link status (green) and activity
(orange); see chapter AUTOHOTSPOT.
The PP 72/48D 2/2A PN has the following LEDs, which provide information on the module
status.
Table 12-32 LEDs: Status display
Name Designation
H1 PowerOK
NCU 1740
Equipment Manual, 10/2021, A5E51087503B AA
Component name
Article number
Serial number
Material number
Hardware revision level
MAC address
PP 72/48D 2/2A PN type plate
Color Description
Green Lit: Power supply OK
Not lit: As soon as one of the generated logic voltages falls below its setpoint, a reset is
triggered and the PowerOK LED goes out.
Connectable components
12.3 PP 72/48D PN 2/2A PN
129