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I have problem with using mscomm in vc++ for modbus protocol over rs-485 line. The problem is that I can not control the rts toggle delay after transmiting data to 232/485 converter (and slave device). That's why slave try to transmit before rts is low so received data is bad.
I have obtained the same by using API windows functions.
Can anybody help?
Ivan
I have obtained the same by using API windows functions.
Can anybody help?
Ivan