Yokogawa YVP110 - Manual (Page 65)

<10. Actions of YVP110 During Operation>
10-3
IM 21B04C01-01E
Table 10.3 Alert Objects
Subindex
Parameter
Name
Description
An
al
og
A
le
rt
D
is
cr
et
e
Al
er
t
U
pd
at
e
Al
er
t
1 1 1 Block Index Leading Index to the block in
which the alert has occurred
2 2 2 Alert Key Copy of ALERT_KEY
3 3 3 Standard
Type
Type of the alert that occurred
4 4 4
Mfr Type The name of the alert defined
in the device description
(DD) file written by the device
manufacturer.
5 5 5 Message
Type
Cause of the alert
6 6 6 Priority Priority level of the alert
7 7 7 Time Stamp Time when the alert occurred
first
8 8
Subcode Subcode that indicates the
cause of the alert
9 9 Value Value of the related data
10 10
Relative
Index
Relative Index to the related
data
8 Static
Revision
Value of ST_REV in the block
11 11 9 Unit Index Unit code of the related data
10.3 Simulation Function
The YVP110 has a function to simulate input
signals to its internal function blocks and makes the
blocks to carry out the specified actions with the
simulated input signals in order to allow for testing
applications in the host computer or alarm handling
processes. Each function block has a parameter
to switch on/off the simulation function. To prevent
this parameter setting from being modified during
plant operation by mistake, a hardware switch
labeled SIM.ENABLE is provided on the YVP110’s
amplifier assembly. Sliding this switch position
to ON enables the simulation function to run.
Remotely writing “REMOTE LOOP TEST SWITCH”
to SIM_ENABLE_MSG also causes the same
effect as turning ON the SIM.ENABLE switch;
however, the value of SIM_ENABLE_MSG will
be lost when the power to the YVP110 is turned
off. In short, simulation can be carried out if the
hardware SIM.ENABLE switch is ON or if the value
of SIM_ENABLE_MSG is “REMOTE LOOP TEST
SWITCH”.
When the simulation can be carried out, alarms
generated from the resource blocks mask the other
device alarms. Hence, simulation must be disabled
immediately after it has finished.
F1001.ai
1
2 O
N
Normally OFF
Unused
SIM.ENABLE switch
Figure 10.1 SIM.ENABLE Switch