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 2
HART device x 16

Environment:

Plug one i-87H17W in the slot 2 of WinGRAF PAC,  and
the other one in the slot 3 of WInGRAF PAC.
Connect three HART devices to the channel 0~7 of i-87H17W in the slot 2 of WinGRAF PAC separeately.
Connect three HART devices to the channel 0~7 of i-87H17W in the slot 3 of WinGRAF PAC separeately.
