Host Interface
38/64
COM-C | Communication Module
DOC021001DG12EN | Revision 12 | English | 2011-06 | Released | Public
© Hilscher, 2002-2011
3.3.4
Fieldbus Connector X2 for PROFIBUS-Master/-Slave
Fieldbus connector X2 for COM-CN-DPM / COM-CN-DPS
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 yellow LED
STA#
4 mA Output
Note 2
14
SYS-LED, RUN, Cathode green LED
RUN#
4 mA Output
15
COM-LED, ERR, Cathode red LED
ERR#
4 mA Output
16
SYS-LED, RDY, Cathode yellow LED
RDY#
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 18: Fieldbus Connector X2 for PROFIBUS-Master/-Slave
Note
Information
1
LVTTL Signals could be only used without the hardware interface on the COM. Ask for special customer ver-
sion.
2
Yellow LED for COM-CN-DPM / COM-CN-DPS
Table 19: Notes for Fieldbus Connector X2 for PROFIBUS-Master/-Slave
