In-process operation, 1 mode transition, 2 generation of alarm – Yokogawa FVX110 User Manual
Page 64: 1 indication of alarm, 2 alarms and events, In-process operation -1, Mode transition -1, Generation of alarm -1 9.2.1, Indication of alarm -1, Alarms and events -1
<9. In-Process Operation>
9-1
IM 01S01C01-01EN
9. In-Process Operation
This chapter describes the procedure performed
when changing the operation of the function block
of the FVX110 in process.
9.1 Mode Transition
When the function block mode is changed to
Out_Of_Service, the function block pauses and a
block alarm is issued.
9.2 Generation of Alarm
9.2.1 Indication of Alarm
The self-diagnostics function of the FVX110 uses
the display to notify the user of the following three
faults.
• The Resource block is in O/S mode
• The MAO1 block is in O/S mode
• The MAO2 block is in O/S mode
The display will then indicate FVX RB OOS,
FVX MAO1 OOS, or FVX MAO2 OOS.
F0901.ai
Figure 9.1 Error identification on indicator (when
MAO1 block is in O/S mode)
When process value have transferred correctly
from field instruments, the ● icon at the center part
of the display flashes. When they are not correctly
transferred, the ● icon is off and the process value
will be highlighted.
F0902.ai
Figure 9.2 Example showing when process value
have correctly transferred
F0903.ai
Figure 9.3 Example showing when process value
have not correctly transferred
The ● icon is not displayed during simulation.
9.2.2 Alarms and Events
The following alarms or events can be reported by
the FVX110 if Link object and VCR static entry are
set.
Analog Alerts (Generated when a process value
exceeds threshold)
By PID Block Hi-Hi Alarm, Hi Alarm, Low
Alarm, Low-Low Alarm. Deviation - Hi Alarm,
Deviation -Low Alarm.
Discret Alerts (Generated when an abnormal
condition is detected)
By Resource Block Block Alarm, Write Alarm
By Transducer Block Block Alarm
By MAO, SC, IT, IS, AR and PID Blocks
Block Alarm
Update Alerts (Generated when an important
(restorable) parameter is updated)
By Resource Block Update Event
By Transducer Block Update Event
By MAO, SC, IT, IS, AR and PID Blocks
Update Event
Field Diagnostic Alerts (Generated when an
abnormal condition in field device is detected)
By Resource Block Check Alarm, Failure
Alarm, Maintenance Alarm, and off
specification Alarm.