OngoingRS232-TTL Interface
STDRS232-TTL Interface
License
：Public Domain
Description
The circuit matches the RS232 signal of a PLC to the TTL level of an Arduino.
By means of a pin header the Arduino is attached to the PCB.
Through the D-SUB connector a connection with the PLC is established.
Further IO is provided by PCB terminals from WAGO:
X2: 5V
X3: Arduino D2
X4: GND
Furthermore, a potentiometer was installed to be able to apply a variable level to A0.
The MAX232 was used according to the typical application.
Design Drawing
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Intellectual Property Statement & Reproduction Instructions
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Users must independently verify the circuit design and suitability when replicating this project. All risks and consequences are borne by the user, and the platform assumes no liability.
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