How can I Communicate With Mitsubishi plc Q series

hey, i want to communicate with mitsubishi plc q series. Do i want to use any driver for this, or i can use VISA? what is the format to communicate with that.. pls help

Do you get any error code/message back? Sounds like the Java wrappers that you made for the C dll's need to be recompiled? If the application runs in a weird way using the bus monitor.exe (\NI-CAN) would help.

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Alicia,
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Hola Jose David, que OPC estas utilizando?, Si tienes comunicación entre tu computadora y PLC pero falla la comunicación entre el OPC y el PLC? La configuración y direcciones entre los dos es correcta? La comunicación es por cable serial?
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KPAC wrote:
I've a ge fanuc versamax plc. I am building a data logger in labview. There are two current trasmitters. I dont have any other data acquisition devices other than PLC. How can i access data acquired by PLC and how can i connect it with labview using VISA?
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