Hi,
I am new here, and hope if there is any things I done wrongly, please feel free to tell me. Thanks in advance.
Currently, I am deal with PLC OMRON CQM1H-CPU21, I need to use this PLC transmit data to vb.net, and show it on my laptop screen.
Now I able to online by using CX-Programmer, means my cable and serial converter is doing good job. But, when I online by using VB application, the COM Port indicator at PLC is not blinking, means no connection? (when use cx-programmer, it do blink).
Secondly, anyone got sample of the protocol and code of VB2008 or VB.net for the transmission of data from PCL to PC, I just need 1 way flow, that is from PLC to PC, to read the I/O status on PLC by using PC software(vb..etc..)
Thanks in advance.
best Regards,
teh
I am new here, and hope if there is any things I done wrongly, please feel free to tell me. Thanks in advance.
Currently, I am deal with PLC OMRON CQM1H-CPU21, I need to use this PLC transmit data to vb.net, and show it on my laptop screen.
Now I able to online by using CX-Programmer, means my cable and serial converter is doing good job. But, when I online by using VB application, the COM Port indicator at PLC is not blinking, means no connection? (when use cx-programmer, it do blink).
Secondly, anyone got sample of the protocol and code of VB2008 or VB.net for the transmission of data from PCL to PC, I just need 1 way flow, that is from PLC to PC, to read the I/O status on PLC by using PC software(vb..etc..)
Thanks in advance.
best Regards,
teh