Design-In - Electrical Aspects
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COMX Communication Modules | Design Guide
DOC100901DG18EN | Revision 18 | English | 2013-12 | Released | Public
© Hilscher, 2002-2013
3.1.6.4
Fieldbus Connector X2 for PROFIBUS-Master/-Slave
Fieldbus connector X2 for COMX 10CN-DPS and COMX 100CN-DP
X2
Pin
Signal
Symbol
Type
Pin at Fieldbus
connector
DSub-9,
female
1
PROFIBUS, Receive Data
PB_RX
LVTTL Input
Note 1
2
3
PROFIBUS, Transmit Data
PB_TX
LVTTL Output
Note 1
4
5
PROFIBUS, Enable Bus Driver
PB_ENB
LVTTL Output
Note 1
6
7
8
9
10
11
12
13
COM-LED, STA, Cathode green LED
(COMX)
STAn
4 mA Output
Note 2
14
SYS-LED, RUN, Cathode green LED
RUNn
4 mA Output
15
COM-LED, ERR, Cathode red LED
ERRn
4 mA Output
16
SYS-LED, RDY, Cathode yellow LED
RDYn
4 mA Output
17 Ground
GND
18
Power Supply
+3.3 V
19
Peripheral IO
PIO
LVTTL Input / Output
20
Don't use - needed for isolation
21
Don't use - needed for isolation
22 Reference
potential
DGND
5
23 Control
CNTR-P LVTTL
4
24
25
Receive / Send Data-N
RXD/TXD-N RS 485
8
26
Receive / Send Data-P
RXD/TXD-P RS 485
3
27
28
29
Positive power supply
VP
+ 5V
6
30
Table 33: Fieldbus Connector X2 for PROFIBUS-Master/-Slave
Note
Information
1
LVTTL Signals can only be used without the hardware interface on the COMX. Ask for special customer ver-
sion.
2
Green LED for COMX 100CN-DP
Table 34: Notes for Fieldbus Connector X2 for PROFIBUS-Master/-Slave