Omron DRT2 SERIES DEVICENET SLAVES - OPERATION MANUAL 04-2008 Operation Manual page 356

Analog Input Terminals
7-4-3 Functions and Settings
Setting the Number of
AD Conversion Points
(DRT2-AD04 Only)
The details for each bit are shown in the following table.
Bit Abbreviation
0 HD0
1 HD1
2 HD2
3 HD3
The following format is used when the Hold Flags are allocated, starting from
the rightmost byte of the Master
Word 15
+0
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).
Conversion points
4 points (default)
3 points
Name
Hold Flag for The hold function is performed for Ana-
Input 0 log Input 0 while this flag is ON. The
hold function stops and the last value is
held when the flag goes OFF.
Hold Flag for The hold function is performed for Ana-
Input 1 log Input 1 while this flag is ON. The
hold function stops and the last value is
held when the flag goes OFF.
Hold Flag for The hold function is performed for Ana-
Input 2 log Input 2 while this flag is ON. The
hold function stops and the last value is
held when the flag goes OFF.
Hold Flag for The hold function is performed for Ana-
Input 3 log Input 3 while this flag is ON. The
hold function stops and the last value is
held when the flag goes OFF.
.
8
Details
Converting Inputs 0 to 3.
DRT2-AD
0 1 2 3
All points used.
Converting Inputs 0 to 2.
DRT2-AD
0 1 2 3
Used points
Section 7-4
Details
7
Hold Flags
0
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