Like me to send data

 MSComm1 (ComputeRelaysPort (Num)). The Output=SendBuff 'request 

Under normal circumstances can be used, but closing the complains, error is: the serial port open to operate,
Tested the following:

 dim as a integer 
A=1 
A=2 
MSComm1 (ComputeRelaysPort (Num)). The Output=SendBuff 'request 
A=3 

Close the program error after commissioning, a value of always stay for 2, is that the program is executing a serial port to send,


Everybody to help me take a look at how to solve this problem,

CodePudding user response:

http://download.csdn.net/detail/veron_04/1777027