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Modbus Communication

Question asked by mistipliler on Sep 20, 2011
Latest reply on May 12, 2016 by melopez

I have a problem with modbus communication on Agilent VEE. I tried to a software which is called mbus for communication to device, it can commmunicate. The connections are correct. But when i write a transaction on VEE, it won't communicate the device (i chose ASRL). The error message:

"VEE Run Time Error
I/O error or timeout occured on VISA device: "new enstrument". VISA Error: VEE_ERROR_TMO
Error number: 811
In transaction number 2
Object title: newinstrument (@ASRL4::INSTR)
Object type: Direct I/O

Should i install dll or something like that?