Yokogawa RotaMASS 3-Series - Manual (Page 49)

6. In-PRoCESS oPERatIon
6-3
IM 01R04B05-00E-E 3rd editionJuly 30, 2010 -00 all Rights Reserved. Copyright © 2005, Rota Yokogawa
6.2.2 Alarms and Events
Each RotaMaSS can report the following alarms
and events as alerts.
analog alerts (Generated when a process value
exceeds threshold)
By aI Block:
Hi-Hi alarm, Hi alarm,
Low alarm, Low-Low
alarm
Discrets alerts (Generated when an abnormal
condition is detected)
By Resource Block: Block alarm, Write alarm
By transducer Block: Block alarm
By aI, It, PID Block: Block alarm
update alerts (Generated when a important (re-
storable) parameter is updated)
By Resource Block: update Event
By transducer Block: update Event
By aI, It, PID Block: update Event
an alert has the following structure:
table 6.2 alert object
Subindex
Parameter
name
Explanation
analog alert
Discrete
alert
update
alert
Block Index Index of block from which
alert is generated
1 1 1
alert Key alert Key copied from the
block
2 2 2
Standard
type
type of the alert 3 3 3
4 4 4
5 5 5
6 6 6
Mft type
alert name identified by
manufacturer specific DD
Message
type
Priority Priority of the alarm
Reason of alert
notification
7 7 7 time Stamp
time when this alert is first
detected
8 8 Subcode
Enumerated cause of this
alert
9 9 Value Value of referenced data
10 10 Relative
Index
Relative Index of
referenced data
8 Static
Revision
Value of static revision
(St_REV) of the block
9 11 11 unit Index unit code of referenced
data
t0602.EPS
6.3 Simulation Function
the simulation function simulates the input of a
function block and lets it operate as if the data
was received from the transducer block. It is pos-
sible to conduct testing for the downstream func-
tion blocks or alarm processes.
a SIMuLatE_EnaBLE jumper switch is mounted
on the RotaMaSS amplifier. this is to prevent
the accidental operation of this function. When
this is switched on, simulation is enabled. (See
Figure 6.2.) to initiate the same action from a re-
mote terminal, if REMotE LooP tESt SWItCH
is written to SIM_EnaBLE_MSG (index 1044) pa-
rameter of the resource block, the resulting action
is the same as is taken when the above switch
is on. note that this parameter value is lost when
the power is turned off. In simulation enabled
status, an alarm is generated from the resource
block, and other device alarms will be masked; for
this reason the simulation must be disabled im-
mediately after using this function.
the SIMuLatE parameter of aI block consists of
the elements listed in table 6.3 below.
t0603.EPS
Sub-
index
Parameters Description
1 Simulate Status Sets the data status to be
simulated.
2 Simulate Value Sets the value of the data
to be simulated.
3 transducer Status Displays the data status
from the transducer block.
It cannot be changed.
4 transducer Value Displays the data value
from the transducer block.
It cannot be changed.
5 Simulate En/Disable Controls the simulation
function of this block.
1: Disabled (standard)
2: active(simulation)
When Simulate En/Disable in table 6.3 above is
set to “active”, the applicable function block uses
the simulation value set in this parameter instead
of the data from the transducer block. this setting
can be used for propagation of the status to the
trailing blocks, generation of a process alarm, and
as an operation test for trailing blocks.
Figure 6.2 SIMuLatE_EnaBLE Jumper Position
F0602.EPS
Std
Simu
JP1
Set to "Standard"
during normal opertion