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5.1.3
Bus termination
If the PROFIBUS gateway is connected at the end of the PROFIBUS line, the ter-
mination resistors in the PROFIBUS connector have to be switched on.
PIN
Designation of the SUB-D connectors
Pin 3
Data line B („RxD/TxD-P")
Pin 5
DGND (0 V)
Pin 6
VP / +5 V
Pin 8
Data line A („RxD/TxD-N")
Terminating resistors with RS 485:
5V
390
220
390
GND
5.2
Display and operating elements
5.2.1
LED-display Profibus
There are seven light-emitting diodes on the front panel of the gateway . They
have the following function:
Power
Profibus
Config err
U AS-i
AS-i active
Subject to reasonable modifications due to technical advances.
14
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Connections, Displays and Operating Keys
A
A
B
B
Host
AS-i Master
The master's power supply is sufficient.
LED on:
Gateway is allocated to a PROFIBUSmaster.
LED off:
Gateway is not allocated to a PROFIBUS master.
Configuration error:
At least one configured slave is missing, at least one detected
slave is not projected or for at least one projected and detected
slave the actual configuration data does not match the nominal
configuration data.
This LED flashes if there is at least one periphery fault at one
AS-i slave in the AS-i network. If there are configuration errors as
well as periphery faults, only configuration error is displayed.
The AS-i circuit is sufficiently powered.
Normal operation active (Flashes, if a B-slave is displayed).
AS-Interface
5V
390
A
220
B
390
GND
AS-i Master
Copyright Pepperl+Fuchs, Printed in Germany
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