RS-232C communication protocol

2009-03-10View Original

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Can the RS-232C communication protocol be replaced with the MODBUS RTU communication protocol?

Reply #22009-03-10

The two protocols are not interchangeable; instructions for the RS-232C communication protocol can be found by searching online.

Reply #32009-03-11

RS-232C is merely a physical interface, while MODBUS RTU is a communication protocol; the two should not be confused. RS-232C can use the MODBUS RTU communication protocol

Reply #42009-03-11

MODBUS is a communication protocol at the application layer that defines message formats and other information. RS232 and RS485 are merely protocols at the physical layer. The electrical properties are different.

Reply #52009-06-22

MODBUS is a communication protocol at the application layer, mainly including two types: MODBUS ASCII and MODBUS RTU. RS232 is a protocol at the physical layer, and both of the aforementioned MODBUS protocols can be used.

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RS-232C communication protocol

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