
5 Installation
5.3 Interfaces
34
MICRO PANEL XVS400 10.4"/12.1"/15"
10/2011 MN04802012Z-EN
www.eaton.com
5.3.8
Profibus
The Profibus interface is electrically isolated.
Tab. 14 Pin assignment of the Profibus interface
Wiring
Shielded twisted pair cables, cable type A (in accordance with Profibus standards IEC/EN 61158
and IEC/EN 61784) must be used.
Tab. 15 Cable specifications
Fig. 17 Profibus interface (9-pin, D-Sub, female, UNC)
Pin
Signal
Assignment
1
-
nc
2
-
nc
3
B
EIA RS 485 line B
4
RTSAS
Output for controlling a repeater
5
M5EXT
0V output for external termination
6
P5EXT
5V output for external termination
7
-
nc
8
A
EIA RS 485 line A
9
-
nc
Pin 6 (5 V) must not be used as a power supply for external devices.
1
2
3
4
5
6
7
8
9
Cable specifications
Rated surge impedance
150
Ω
Permissible surge impedance
135…165
Ω
Capacitance per unit length
< 30 pF/m
Loop resistance
< 110
Ω
/km
Core cross-section
≥
0.34 mm
2
(22 AWG)