Rockwell Automation 2711 PanelView 550/900 Profibus Communications User Guide - Manual (Page 11)

PROFIBUS DP Communications 11
Publication 2711-6.3
Type B Cable Termination
If the PanelView is the last device on an end of a network, it must be
terminated at the PROFIBUS DP connector or T-junction. Use the
recommended terminating blocks (page 9).
If you do not have terminating blocks available, terminate the cable
as shown below.
+5V Pin# 6
+ Receive/ Transmit
Pin #3
Data Ground Pin #5
– Receive/ Transmit
Pin #8
390 ohms (2%,  1 /
4
watt)
150 ohms
(2%,
 1 /
4
watt)
390 ohms (2%,  1 /
4
watt)
Cable
Note: The bus cable should be grounded to an earth ground only at
one point on the network.