Omron DRT2 Series Operation Manual page 161

Analog Input Terminals
Top/Valley Detection
Timing Flags (Instance
132)
Analog Status Flags
(Instance 134)
144
These flags turn ON for the one-shot time when detecting the top or valley for
the top/valley hold function.
These flags are used to time reading the values held as the top and valley val-
ues at the Master. The following data format is used when these flags are allo-
cated in the Master (2 bytes).
Bit 7
+0 0
+1 0
The details of each byte are shown in the following table.
Byte Abbreviation
+0 V_STx
+1 T_STx
Note The one-shot time can be changed. For details, refer to the one-shot time set-
tings for the top/valley hold function.
The following format is used when the Top/Valley Detection Timing Flags are
allocated, starting from the rightmost byte of the Master
Word 15
+0
The Analog Status Flags include allocations for the Comparator Result Flag,
the Top/Valley Detection Timing Flags, and the Off-wire Detection Flags.
These flags are used for detection and monitoring.
The data format used for each byte when these flags are allocated in the Mas-
ter is shown below (4 bytes).
Bit 7
+0 BW0 T_ST0 V_ST0
+1 BW1 T_ST1 V_ST1
+2 BW2 T_ST2 V_ST2
+3 BW3 T_ST3 V_ST3
Bit 6 Bit 5 Bit 4
0 0 0
0 0 0
Name
Valley Detection Tim-
ing Flag
Top Detection Timing
Flag
12 11 8 7
Top Detection
Timing Flag
Bit 6 Bit 5 Bit 4 Bit 3
HH
HH
HH
HH
Section 7-3
Bit 3 Bit 2 Bit 1
V_ST3 V_ST2 V_ST1
T_ST3 T_ST2 T_ST1
Details
Turns ON when a valley is
detected by the valley hold
function and then turns OFF
after the one-shot time has
elapsed.
Turns ON when a top is
detected by the top hold func-
tion and then turns OFF after
the one-shot time has elapsed.
4 3
Valley Detection
Timing Flag
Bit 2 Bit 1 Bit 0
H PS0 L LL
H PS1 L LL
H PS2 L LL
H PS3 L LL
Bit 0
V_ST0
T_ST0
0
Input
0
Input
1
Input
2
Input
3