PROFIBUS DP Communication
‑146‑
Figure 7‑4 DB9 terminal pins
Control Terminals
Table 7–1 Function description of control terminals
Category
Symbol
Terminal Name Function
PROFIBUS
communica
tion
terminal
(J2)
1, 2, 7, and 9
NC
Unconnected internally
3
Data line B
Positive pole of the data line
4 RTS
Request to send signal
5 GND
Isolated 5 V power ground
6 +5 V
Isolated 5 V power supply
8
Data line A
Negative pole of the data line
CANlink
communica
tion
terminal (J3,
J9)
CANH
Positive CAN
input
Positive pole of the data line
CANL
Negative CAN
input
Negative pole of the data line
GND
Power ground Isolated 5 V power ground
Program
ming
SW1
Programming
Interface for production and
commissioning. Do not use it.
Jumper
J6
CANlink
terminal
resistor
configuration
● Pins 1 and 2 shorted: resistor connected
● Pins 2 and 3 shorted: resistor
disconnected
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