Hitachi EH-150 Weather Radio User Manual


 
8. Error Deception Processing
8-1
8. Error Detection Processing
8.1 Measured Temperature Range over
(1)Interlock
If temperate conversion data is over the measuring range or current terminal wiring is disconnected,
the temperature conversion data becomes H7FFF.
After this data is read, it is necessary to make a program externally for the treatment for an error.
Example of an error detection program
Please take a proper countermeasure by using the coil Yb at error detection (M8 ON).
Set the numbers of the sections a and b corresponding to the actual system.
M0008
Xa
Yb
Yb
The program checks
for error data.
When one error data
is found, M8 is turned
on.
For error data, Yb is
turned on.
Xa is for reset.
WM000 = H0000
M0000 = WX000 == H7FFF
M0001 = WX001 == H7FFF
M0002 = WX002 == H7FFF
M0003 = WX003 == H7FFF
M0008 = WM000 <> H0000