, ladies and gentlemen, everybody is good, I ask, a question about PC software programming, I have now realized by PC to control the step motor start stop, send the specified pulse and speed control, but the next thing to realize is that it is sent after the specified pulse count is performed, and then execute that code, pulse didn't send complete, does not perform the back of the code, such as: I click run automatically, after receiving a trigger signal sensor, start sending 10000 pulse, such as 10000 after the pulse transmission, and then opens an output port to control the electromagnetic valve and stop work, I check the Internet for a long time, this problem has not find relevant case,, every brother please advice, I appreciate