Yokogawa Removable Chassis DX1000N - Manual (Page 123)

Measurement Channels and
Alarms
IM 04L41B01-01E
3-29
1
2
3
4
5
6
7
8
9
10
11
12
App
Index
ISA-M
Sequence diagram
Process
Sequence
Display
Relay output
Alarm icon
Normal
Normal
Normal
Deactivated
No display
Process
Sequence
Display
Relay output
Alarm icon
Deactivated
Process
Sequence
Display
Relay output
Alarm icon
Activated
Abnormal or
normal
Acknowledged
On
On (red) Blinking (red)
Flashing
Alarm
Abnormal or
normal
To abnormal
Alarm ACK
Alarm display reset while
normal
Sequence pattern
Alarm
Display
Relay output
Alarm ACK Alarm ACK
Display reset Display
reset
Display
reset
Alarm
Display
Relay output
Alarm ACK Alarm ACK
Display
reset
• Even if an alarm is released before the alarm ACK operation is performed, the annunciator continues to blink with the color
that is displayed when an alarm has occurred.
• Even if an alarm is released before the alarm display reset operation is performed, the annunciator continues to blink with
the color that is displayed when an alarm has occurred.
• Even if an alarm is released before the alarm ACK operation is performed, the alarm icon continues to blink red.
• Even if an alarm is released before the alarm display reset operation is performed, the alarm icon stays red.
When multiple alarms have been assigned to a single annunciator window
• If multiple alarms are occurring, the window is displayed using the color of the alarm with the highest priority.
When two alarms have been assigned to a single relay
Same as for ISA-A.
3.12 Using the Alarm Annunciator Function (Release number 3 or later)