X20 system modules • X20 interface module communication • X20IF1061-1
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X20 system User's Manual 3.10
4.23.9.4 LED status indicators
Figure
LED
Color
Status
Description
Green/red
Off
No power to module
Green
On
PCI bus communication in progress
Blinking
Boot error
READY/RUN
Red
On
Communication on the PCI bus has not yet been started
Acyclic blinking
No configuration or stack error
Cyclic blinking
Bus is configured, but communication has not yet been enabled by the
application
Green
On
Communication established with all slaves
Cyclic blinking
Communication to at least one slave has been disrupted
STATUS DP
Red
On
Communication to one/all slave(s) has been disrupted
RxD
Yellow
On
The module is receiving data via the PROFIBUS DP master interface
TxD
Yellow
On
The module is transmitting data via the PROFIBUS DP master interface
4.23.9.5 Operating and connection elements
LED status indicators
IF1 - Profibus DP
4.23.9.6 PROFIBUS DP interface
Interface
Pinout
Pin
RS485
1
Reserved
2
Reserved
3
RxD/TxD-P
Data
1)
4
CNTR-P
Transmit enable
5
DGND
Electrically isolated supply
6
CP
Electrically isolated supply
7
Reserved
8
RxD/TxD-N
Data\
2)
9
CNTR-N
Transmit enable\
1
5
6
9
9-pin female DSUB connector
CNTR ... Directional switch for external repeater
Table 571: Pinout
1)
Cable color: Red
2)
Cable color: Green