connect plc using modbus with labview

[faizi89]

dear ryan 

i already have tried thoes example the first link is just giving a simulated sine waves and even the plc is not connected labview will still show a simulted sine wave and does not show any connection with plc and the other is example is based on ethernet and my plc is not supported

[rohit1892]

hiii, i am doing the communication between mitsubishi FX-plc and the labview ,.. but it will nt work and im tried a lot.. can any one help me out??????

[rohit1892]

can yu help me out to solve the OPc pblm.. actually im doing the communication between Mitsubishi FX plc and the labview

[crossrulz]

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@rohit1892 wrote:

can yu help me out to solve the OPc pblm.. actually im doing the communication between Mitsubishi FX plc and the labview

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Are you using a ModBus library?  If so, which library?

What type of connection is the ModBus using?  Serial?  Ethernet?

Do you have any code you could share to help us help you?

[rohit1892]

actually im doing the serial communication and as well as ethernet communication using MC (mitsubishi) Protocol.

my comport is validate in serial part bt further no communication happened??

Bt in ethertnet our device is not reconised means validation is unsucessfully.

using norma DB 9 male and the female to USb converter.