PROFIBUS DP Master Driver Manual
Page 5 of 14
HARDWARE CONNECTIONS
The FieldServer is connected to the PROFIBUS network and NetTool as shown in the connection
drawing below.
PROFIBUS DB9 connector
NetTool RS-232 connector
PROFIBUS Status LEDs
HMS Anybus NetTool RS-232 Serial Cable
PROFIBUS DB9 Connector Pinouts *
Pin
Name
Description
Housing Shield
Connected to PE
1
Not connected -
2
Not connected -
3
B-Line
Positive RxD/TxD according to RS-485 specification
4
RTS
1
Request to Send
5
GND BUS
2
Isolated GND from RS-485 side
6
+5V BUS
Is5V from RS-485 side
7
Not connected -
8
A-Line
Negative RxD/TxD according to RS-485 specification
9
Not connected -
* Only A-line, B-line and Shield are used for most applications.
PROFIBUS NetTool connector Pinouts
PC Side DB9 Female FieldServer Side DB9 Female
2
3
3
2
5
5
3.1
Hardware Connection Tips / Hints
Use the recommended network cable and terminators as specified by the PROFIBUS network
organization and/or the manufacturer of the network equipment.
1
Used in some equipment to determine the direction of transmission.
2
Used for bus termination. Some devices, such as optical transceivers (RS-485 to fiber optics), require an external power supply
from these pins.
