Compax3
device description
C3I20T11 / C3I32T11
64
192-120103 N13 C3I20T11 / C3I32T11 December 2010
3.7.3.
Profibus connector X23 on Interface I20
Pin X23 Profibus (Sub D)
1
factory use
2
factory use
3
Data line B
4
RTS
5
GND
6
+5V
7
factory use
8
Data line A
9
factory use
The assignment corresponds to Profibus standard EN 50170.
Wiring
(see on page 403).
3.7.3.1
Adjusting the bus address (Profibus I20)
Address setting
Values:
1:
2
0
;
2:
2
1
;
3:
2
2
; ...
7:
2
6
;
8:
reserved
Settings:
left: OFF
right: ON
(The address is set to 0 in the illustration to the left)
Range of values: 1 ...127
Address 0 is set internally to address 126.
3.7.3.2
Function of the Bus LEDs (Profibus I20)
Function of the LEDs (under X23)
Green LED (left)
Red LED (right)
Description
alternately flashing
Field bus program missing
off
flashing
Device is not initialized
on
flashing
Bus operation mode (no DATA exchange)
on
off
Bus operation mode (DATA exchange)
on
on
Bus error
