LabVIEW Modbus

[LVNinja]

I need to communicate with an instrument with LabVIEW through MODBUS using RS-232. 

The instrument is the slave and the computer is the master. 

I'm using the NI MODBUS Library 

Question: when creating a MODBUS instance in labview should it be NEW Serial Master or New Serial Slave ? 

[ZYOng]

The computer should be a New Serial Master since you are simulating a master on your computer to communicate with the slave instrument.