Siemens SINUMERIK ONE NCU 1740 Equipment Manual page 111

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③
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Figure 12-8
Note
The type plate is located on the rear side of the mounting plate. Note the relevant data because
the type plate 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 72/48 D PN has the following additional LEDs, which provide information on the module
status:
Table 12-11 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 PN type plate
Color Description
Green Lit: Power supply OK
Off: 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
12.2 PP 72/48D PN
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