Omron CRT1 - 10-2008, Operation Manual

Page: 330 / 584

307
Analog Input Slave Units Section 6-4
The details of each byte are shown in the following table.
Note The one-shot time can be changed. For details, refer to the one-shot time set-
tings for the top/valley hold function.
Analog Status Flags The Analog Status Flags include allocations for the Comparator Result Flag,
the Top/Valley Detection Timing Flags, and the Disconnected Line 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 Unit is shown below (4 bytes = 2 words).
The details for each bit are shown in the following table.
Byte Abbreviation Name Details
+0 V_STx Valley Detection Tim-
ing Flag Turns ON when a valley is
detected by the valley hold
function and then turns OFF
after the one-shot time has
elapsed.
+1 T_STx Top Detection Timing
Flag Turns ON when a top is
detected by the top hold func-
tion and then turns OFF after
the one-shot time has elapsed.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
+0 BW0 T_ST0 V_ST0 HH0 H0 PS0 L0 LL0 Input
0
+1 BW1 T_ST1 V_ST1 HH1 H1 PS1 L1 LL1 Input
1
+2 BW2 T_ST2 V_ST2 HH2 H2 PS2 L2 LL2 Input
2
+3 BW3 T_ST3 V_ST3 HH3 H3 PS3 L3 LL3 Input
3
Bit Abbrevi-
ation
Name Details
0 LLx Compara-
tor result Low Low Limit
Alarm Flag Turns ON when the value of data
allocated in Analog Data drops
below the Low Low Limit alarm set-
ting.
1 Lx Low Limit Alarm
Flag Turns ON when the value of data
allocated in Analog Data drops
below the Low Limit alarm setting.
2 PSx Normal Flag
(pass signal) Turns ON when none of the alarms
(High High Limit, High Limit, Low
Low Limit, and Low Limit) have been
output.
3 Hx High Limit
Alarm Flag Turns ON when the value of data
allocated in Analog Data exceeds
the High Limit alarm setting.
4 HHx High High Limit
Alarm Flag Turns ON when the value of data
allocated in Analog Data exceeds
the High High Limit alarm setting.