Rockwell Automation 1790D-NOV2/TNOV2 CompactBlock LDX Analog Modules - Manual (Page 76)

Publication 1790-UM001A-EN-P - March 2002
B-8 PROFIBUS Modules Installation, Wiring, Module Data, Status and Channel Configuration
Connect the PROFIBUS DP Terminal Connector
Follow these procedures when connecting the PROFIBUS DP terminal
connector to the base block.
The required PROFIBUS female 9-pin D-sub connector is not supplied
with the base block; you must purchase it separately. Before you
connect female 9-pin D-sub connector to the base block, make sure it
is wired correctly, as shown in Table B.2.
WARNING
!
If you connect or disconnect the PROFIBUS cable
with power applied to this module or any device on
the network, an electrical arc can occur. This could
cause an explosion in hazardous location
installations. Be sure that power is removed or the
area is nonhazardous before proceeding.
Table B.2
Wiring Connections
Pin Number: Name: Description:
1 Shield Shield, Protective Ground
2 M24V Minus 24V Output Voltage
3 RxD/TxD-P Receive/Transmit-Data-P
4 CNTR-P Control-p
5 DGND Data Ground
6 VP Voltage-Plus
7 P24V Plus 24V Output Voltage
8 RxD/TxD-N Receive/Transmit-Data-N
9 CNTR-N Control-N