Yokogawa JUXTA VJ Series Limit Alarms - Manual (Page 54)

6-4
<6. Functions and Usage of D Registers >
IM 77J01J11-01E 3rd Edition : Oct. 15, 2007-00
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D0002, D0003: INPUT1_L, INPUT1_H (input value: engineering unit)
D0002 shows a numeric value and D0003 shows the number of digits below the decimal
point.
mA, mV, V
Number of digits
belowdecimal point
Input Units
Њ C, K
2
1
060301E.EPS
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D0004: input value (ratio of input value to input span is indicated as a
percentage)
●
D0008: output value (percentage indication)
Example 1: When the input value (engineering unit) is 680.0
°
C for VJU7 (universal
temperature converter), thermocouple input, and type K (input range: 0 to
1000
°
C):
D0002: input value (engineering unit)
Contents of D registers Internal value
D0004: input value (%) 02A8 (=680)
1A90 (=6800)
D0008: output value (%) 02A8 (=680)
68.0 (%)
68.0 (%)
D0003: input value (engineering unit),
number of digits below decimal point 0001 (=1)
680.0 ( Њ C)
060302E.EPS
Example 2: Representation of negative values
When the input value (engineering unit) is -10.5
°
C in the same conditions
as above:
D0002: input value (engineering unit)
Contents of D registers Internal value
D0004: input value (%) FFF5 (= -11)
FF97 (= -105)
D0008: output value (%) FFF5 (= -11)
-1.1 (%)
-1.1 (%)
D0003: input value (engineering unit),
number of digits below decimal point 0001 (=1)
-10.5 ( Њ C)
060303E.EPS
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D0014, D0015: Alarms 1 and 2 ("1" when on or "0" when off)
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D0041 to D0064: Revision, revision of menu table, tag number 1,
tag number 2, comment 1, and comment 2
One D register indicates two letters in the ASCII code.
For example, if D0049 to D0052 contain a tag called "YOKOGAWA," each D register
shows two letters as follows:
5 9 4 F
D0049
060304E.EPS
Y O
4 B 4 F
D0050
K O
4 7 4 1
D0051
G A
5 7 4 1
D0052
W A