This Demo is to show how to operate 
one HART module to commnunicate with one HART device.

Equipment :
WinGRAF PAC x 1
i-87H17W x 1
HART device x 3

Environment:

Plug i-87H17W in the slot 2 of WinGRAF PAC.
Connect three HART devices to the channel 0~2 of i-87H17W in the slot 2 of WinGRAF PAC separeately.
