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Defining Modbus Address on PXIe

Any direction or help appreciated on this question. If I define analog input address for each channel as 303000, 303002 and 303004 on Master modbus driver. 

Do I have to define same address on PXIe(Slave) channel side? either in configuration file or through NI Max. In this case I am using NI PXIe 4300.

 

image

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Hi,

 

Are you using LabVIEW for the master and the slave applications? If so, Are you using the Modbus Library or the Modbus I/O server

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Hi Donh,

 

No, we are using our in house developed Modbus driver as master and NI PXI act as slave. As showed below we define addresses on  master side, but not sure do I need to define same addresses on slave side.

 

Modbus TCP Address Issue.PNG

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