LEDs, connectors, buttons
2.4 X80: External power supply
IE/PB LINK PN IO
Operating Instructions, 11/2017, C79000-G8976-C393-02
27
For information on configuring the bus adapters in STEP 7 Professional refer to the section
Configuring bus adapters (Page 59).
Note
Deactivated Ethernet interface
When you plug in a bus adapter, the ports X1P1R / X1P2R of the integrated Ethernet
interface of the LINK are deactivated.
Button
WARNING
EXPLOSION HAZARD
Do not press the button if there is a potentially explosive atmosphere.
The button serves the following purposes:
●
Changeover to maintenance mode
●
Restart
After the restart a new firmware file can be loaded, see section Loading firmware
(Page 71).
●
Resetting to factory settings
For information on using the button and changing to the maintenance mode see the following
section.
2.4
X80: External power supply
External power supply
The connector X80 (socket) for the external 24 VDC power supply is located on the bottom
of the LINK. The external power supply is redundant (optional use).
The power supply is connected to the LINK with the supplied 4-pin plug-in terminal block.
The plug-in terminal block is designed so that it can only be inserted in one position in the
X80 socket of the LINK.
The connector X80 has electronic reverse polarity protection.
