Omron CP1H-X40D - Page 491

457
Temperature Sensor Units Section 7-5
Description of Operation
1000.02
2001
D100
BCDL(059)
2002.07 (non-negative data)
2002.07 (negative data)
D102
2001
H0
H0
D100
BCDL(059)
#0008
#0300
MOVD(083)
D101
RSET1000.02
(6)
If the temperature data is non-negative, the
binary data in CIO 2002 and CIO 2001 is
converted to BCD and placed in D101 and
D100.
(7)
If the temperature data is negative, the 2's
complement data in CIO 2002 and CIO
2001 is converted to binary data
representing the absolute value of the
temperature input and placed in H1 and H0.
(8)
The binary data in H1 and H0 is
converted to BCD and placed in D101
and D100.
(9)
"1" is written to the bit in D101 indicating
negative data.
−L(411)
CIO 2000
CIO 2002
CIO 2: Leftmost 3 digits of temperature data
0 16
5
16
4
16
3
0 0 16
5
16
4
CIO 2001
16
4
16
3
16
1
16
0
0 16
5
16
4
16
3
CIO 2: Rightmost 3 digits of temperature data
1 16
2
16
1
16
1
(2)
(1)
(9) If temperature data is negative, "8" is written here.
(3)
D101
0/8 10
6
10
5
10
4
D103
0 1 0 0
#0100
CIO 2002
−
2's complement data
D100
10
3
10
2
10
1
10
0
H1
0 0 16
5
16
4
H0
16
3
16
2
16
1
16
0
(5)
(4)
(1)
D102
0 0 0 0
#0000
CIO 2001
2's complement data
(6)
If the temperature data is
non-negative, binary data is
converted to BCD data.
(8)
If the temperature data is negative,
binary data is converted to BCD data.
(7)
Binary
subtraction