Communication programming-CodePudding

I don't know the machine (server program), can use vc + + write a PC software to establish communication with it?

CodePudding user response:

Need to know the protocols and data set

CodePudding user response:

reference 1st floor gz_qmc response:

need to know the agreement and set data

What is under an agreement, please?

CodePudding user response:

reference 1st floor gz_qmc response:

need to know the agreement and set data

The digital setting is transmission packet format?

CodePudding user response:

First, at least you want to know each other address
Second, at least you want to know the other person's data transfer protocol, for example, is a serial port 232? Or 485? Or TCPIP? Or profibus? Still CAN...
Third, at least you want to know the other side of the frame agreement. You said Hello to the British, for example, use "Hello", said to use "Hello" in Chinese
So, how is the lower? Was "123" send it or "456" to him?

CodePudding user response:

The

reference 4 floor gz_qmc reply:

first, at least you know each other's address
Second, at least you want to know the other person's data transfer protocol, for example, is a serial port 232? Or 485? Or TCPIP? Or profibus? Still CAN...
Third, at least you want to know the other side of the frame agreement. You said Hello to the British, for example, use "Hello", said to use "Hello" in Chinese
So, how is the lower? Was "123" send it or "456" to him?

Ok, thank you very much for your reply, thank you!

CodePudding user response: