VIPA IM 253 DP Series, Manual, Page: 34 / 100

Chapter 2 Hardware description Manual VIPA System 200V
2-8 HB97E - IM - RE_253-xDPxx - Rev. 12/44
A 9pin socket is provided for the RS485 interface between your PROFIBUS
slave and the PROFIBUS.
Every PROFIBUS slave has an internal power supply. This power supply
requires DC 24V. In addition to the electronics on the bus coupler, the
supply voltage is also used to power any modules connected to the
backplane bus. The "max. current drain at backplane bus" can be found in
the Technical Data.
The power supply is protected against reverse polarity.
PROFIBUS and backplane bus are isolated from each other.
Attention!
Please ensure that the polarity is correct when connecting the power
supply!
The PROFIBUS slave modules carry a number of LEDs that are available
for diagnostic purposes on the bus and for displaying the local status. The
following table explains the different colors of the diagnostic LEDs.
Label Color Description
PW green Indicates that the supply voltage is available on the backplane bus (Power).
ER red Turned on and off again when a restart occurs and is permanently on when an
internal error has occurred.
Blinks when an initialization error has occurred.
Alternates with RD when the master configuration is bad (configuration error).
Blinks in time with RD when the configuration is bad.
RD green Is turned on when the status is "Data exchange" and the V-bus cycle is faster
than the PROFIBUS cycle.
Is turned off when the status is "Data exchange" and the V-bus cycle is slower
than the PROFIBUS cycle.
Blinks when self-test is positive (READY) and the initialization has been
completed successfully.
Alternates with ER when the configuration received from the master is bad
(configuration error).
Blinks in time with ER when the configuration is bad
DE green DE (Data exchange) indicates PROFIBUS communication activity.
Contrary to the coding switched described above at the IM 253-1DP31 -
ECO the PROFIBUS address is configured by means of a DIL switch.
64
32
16
8
4
2
1
-
1
0
Addresses may range from 1 to 125. Addresses must be unique on the
bus.
The slave address must have been configured before the bus coupler is
turned on. When the address is set to 00 during operation, a once-off
image of the diagnostic data is saved to Flash-ROM.
Please take care to reset the correct PROFIBUS address, so at the next
PowerON the right PROFIBUS address is used!
RS485 interface
Power supply
LEDs
Address selector