SmartFlex SR305
5.8.8
USB Port
Panel socket USB-A.
Pin
Signal mark
Description
Data flow direction
1
+5 V
Positive pole of 5 V DC supply voltage, 0.5 A
2
USB data -
USB data signal – negative pole
Input/Output
3
USB data +
USB data signal – positive pole
Input/Output
4
GND
Negative pole of DC supply voltage
Table 13: Connection of USB connector
Figure 35: USB connector
5.8.9
I/O Port
Panel socket 6-pin.
Pin
Signal mark
Description
1
IN0
Binary input 0
2
IN0
Binary input 0
3
IN1
Binary input 1
4
IN1
Binary input 1
5
OUT
Binary output
6
OUT
Binary output
Table 14: Connection of I/O port
Figure 36: I/O connector
The I/O user Interface is designed for the processing of binary input and control (setting)
of binary output. Binary output is open in the default configuration. The isolation strength is
1.5 kV. The pins are isolated from each other with the same strength.
The input circuits are bipolar and allow connection as needed with common plus or minus
(according to the connection of an external voltage).
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