Rs232 Connector - Siemens 7XV5450-0BA00/DD Manual

Device Structure
2.2 Device Connections
Switch Position
S1/5
S1/6
On
On
Off
Off
S1/7
S1/8
On
On
Off
Off
2.2.2.2

RS232 Connector

The mini star coupler is connected to a PC/RTU or a laptop computer using an X1 socket with a DIGSI cable, for
example 7X5100-4. The RS232 interface is activated only when the mini star coupler works in the mode with
RS232 = On, and when pin 7 and pin 8 on the DIGSI cable have been shorted.
If the RS232 interface is active and the device is configured in compatibility mode in a star topology, signal
reception at the FO1 channel is automatically inactive. The serial RS232 interface now distributes the data to
the fiber-optic channels or receives data from the fiber-optic channels. This means that you can prevent a data
collision due to simultaneous local and remote access.
There are other adjustment options for RS232 interface functionality in extended mode (star topology with
master redundancy).
Table 2-1 and Table 2-2
RS232 Plug Connection X1
Table 2-3
Pin
1
2
3
4
5
6
7
8
9
Light in idle state: Off = non-inverted logic
7
8 Light in idle state: On = inverted logic
18
Meaning
Light in idle state
On Fiber-optic channel 1:
7
Off
Off Fiber-optic channel 1:
8
On
On Fiber-optic channel 1:
Off
Off Fiber-optic channel 1:
On
Light in idle state
On Fiber-optic channel 3:
Off
Off Fiber-optic channel 3:
On
On Fiber-optic channel 3:
On
Off Fiber-optic channel 3:
On
show in which modes the RS232 interface can be used.
Pin Assignment for the RS232 Plug with a 9-Pin D-Sub Socket
Meaning
Unused
Receive data
Transmit data
Unused
Ground
Unused
Switches the RS232 interface to active
Ground
Unused
Fiber-optic channel 2:
Off
Fiber-optic channel 2:
Off
Fiber-optic channel 2:
On
Fiber-optic channel 2:
On
Fiber-optic channel 4: Fiber-optic channel 5:
Off Off
Fiber-optic channel 4: Fiber-optic channel 5:
Off Off
Fiber-optic channel 4: Fiber-optic channel 5:
On Off
Fiber-optic channel 4: Fiber-optic channel 5:
On On
Abbreviation
Accessories, Mini Star Coupler, Manual
C53000-G9050-C595-1, Edition 05.2020
–
RxD
TxD
–
GND
–
–
GND
–