madcobra

July 16, 2009

Dear all Friend,

Yesterday , When i add Active X container into VI, I cannot see any more my active X and NiOPC sever.

I thing, i was install some program.

Please help me to fix it .

JM

July 15, 2009

Assuming I'm understanding your checksum protocol correctly, this should do the trick.

Thanks alot Crossrulz.

July 14, 2009

Dear my friend,

I using Block camera with Rs232 for controller zoom and wide. I want to write program in Labview for this. They protocol looklike

DEFAULT is 19200bps.Data Length: 8 bit Start Bit: 1 bit Stop Bit: 1 bit Parity: None Flow Control: None

Checksum format :

Bit 0-6: Take the value that sets the lower 7 bits of the values added from the header to the checksum to 0.

Bit 7: Fixed [0]

Command for Zoom is A0 02 05 CS FF (A0 is header , 02 05 is message, CS Checksum, FF is teminal ) ( Checksum is 27, right ? A0 02 05 27 FF )

Wide A0 02 06 CS FF

Zoom, Wide Stop A0 02 07 CS FF

Please help me calculate Checksum in Labview 8.5

Thanks alot

Jean Martin

Posts posted by madcobra