6-3-(14)
Host Link Serial Interface
Section 6-3
6-3-3
Output Format (Host Link)
When Host link data output is set for a unit, the measurement results are out-
put in order from the smallest output number.
The measurement results are output in BCD code to the Write Area in the Pro-
grammable Controller.
Output Data
• Digital Output Range
-9,999,999.999
measurement
9,999,999.999
The minimum value of “-9,999,999.999” will be output for measurements
less than -9,999,999.999.
The maximum value of “9,999,999.999” will be output for measurements
greater than 9,999,999.999.
• JG (Judgement) Outputs
The following values are output when JG (Judgement) has been set:
OK: 0
NG: -1
CHECK
After measurements have been made in Run Mode, the data up through the
last measurement will be output even if the mode is changed to another mode.
The data output will not be interrupted midway.
Example 1
This example shows the data output when the data 0 measurement is
143.250, data 1 is not set, and the data 2 measurement is -6,943.298.
10
3
digit
Sign
0000
0000
10
2
digit
10
6
digit
10
-1
digit
0000
10
1
digit
10
5
digit
10
-2
digit
0000
10
0
digit
10
4
digit
10
-3
digit
Write flags
Measurement result
Contents
+0
+1
+2
+3
Write
Area
word
Bits
15 to 12 11 to 8 7 to 4 3 to 0
Each time that data is output, the write flags are switched between
"0000" and "1111". The status of these bits can be monitored to see
when data has been written.
After the first measurement, the write flags are cleared to "0000" so
store "1111" in this digit as the initial value before starting
measurements.
0000: Positive
1111: Negative
Write
flags
Data
Write
Area
word
Bits
Contents
15 to 12
11 to 8
7 to 4
3 to 0
Data 0
+0
0000
0000
0000
0000
Write flags (0000)
+1
0000
0001
0100
0011
Four lowest integer digits
+2
0000
0000
0000
0000
Sign and two highest integer digits
+3
0000
0010
0101
0000
Decimal point
