Westermo MD-63 Profibus - Manual (Page 6)

12 6071-2071
Connections MD-63 Profibus
MD-63 Profibus is specially developed for communi-
cation to units communicating with Profibus-DP or
FMS. The connection is easily made via a Profibus
cable connected to the 9-position D-sub on the unit.
Possibility to connect to a 9-position screw block is
also available.
1 2 3 4 5 6 7 8 9
Line connection
Connections
Cable types
Designation 9-pos D-sub 9-pos screw block Description
T/R-P 38 Line connection – P
T/R-N 8 7 Line connection – N
VP 6 9 +5V supply
DGND 5 6 Signal ground
Designation Impedance Capacity Resistance Conductor area
Cable type A 135–165
Ω
(3–20MHz) <30pF/m <110
Ω
/km ≥0,34 mm 2 (22AWG)
Cable type B 100–130
Ω
(>100kHz) <60pF7m – ≥0,22 mm 2 (24AWG)
Connection example
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
Profibus-DP/FMS
Profibus DP/FMS
Connection to 9-pos D-sub
Connection to screw block