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Analog Input Terminals Section 7-4
The details for each bit are shown in the following table.
The following format is used when the Hold Flags are allocated, starting from
the rightmost byte of the Master
.
7-4-3 Functions and Settings
Setting the Number of
AD Conversion Points
(DRT2-AD04 Only)
Normally, when using a four-point Input Unit, the values for the four inputs are
converted in sequence. The setting can be changed, however, so that unused
inputs are not converted. By reducing the number of conversion points, the
conversion cycle speed is increased. For details on conversion cycle time,
refer to 7-4-4 Calculating the Conversion Cycle (DRT2-AD04 Only).
Bit Abbreviation Name Details
0 HD0 Hold Flag for
Input 0
The hold function is performed for Ana-
log Input 0 while this flag is ON. The
hold function stops and the last value is
held when the flag goes OFF.
1 HD1 Hold Flag for
Input 1
The hold function is performed for Ana-
log Input 1 while this flag is ON. The
hold function stops and the last value is
held when the flag goes OFF.
2 HD2 Hold Flag for
Input 2
The hold function is performed for Ana-
log Input 2 while this flag is ON. The
hold function stops and the last value is
held when the flag goes OFF.
3 HD3 Hold Flag for
Input 3
The hold function is performed for Ana-
log Input 3 while this flag is ON. The
hold function stops and the last value is
held when the flag goes OFF.
Word 15 8 7 0
+0 Hold Flags
Conversion points Details
4 points (default) Converting Inputs 0 to 3.
3 points Converting Inputs 0 to 2.
DRT2-AD
0 1 2 3
All points used.
DRT2-AD
0 1 2 3
Used points
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