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Update Alerts (Generated when a important
(restorable) parameter is updated)
By Resource Block
By Transducer Block Update Event
By AI1 Block
By AI2 Block
By PID Block
An alert has following structure:
Table 6.2 Alert Object
Subindex
Parameter
Name
1
1
1
Block Index
2
2
2
Alert Key
3
3
3
Standard
Type
4
4
4
Mfr Type
5
5
5
Message
Type
6
6
6
Priority
7
7
7
Time Stamp
8
8
Subcode
9
9
Value
10
10
Relative
Index
8
Static
Revision
11
11
9
Unit Index
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 possible to
conduct testing for the downstream function blocks or
alarm processes.
A SIMULATE_ENABLE switch is mounted in the
EJA 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 remote terminal, if REMOTE
LOOP TEST SWITCH is written to the
SIM_ENABLE_MSG parameter (index 1044) 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.
Update Event
Update Event
Update Event
Update Event
Explanation
Index of block from which
alert is generated
Alert Key copied from the
block
Type of the alert
Alert Name identified by
manufacturer specific DD
Reason of alert notification
Priority of the alarm
Time when this alert is first
detected
Enumerated cause of this
alert
Value of referenced data
Relative index of referenced
data
Value of static revision
(ST_REV) of the block
Unit code of referenced data
T0602.EPS
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 immediately after using this function.
The SIMULATE parameter of AI block consists of the
elements listed in Table 6.3 below.
Table 6.3 SIMULATE Parameter
Sub-
Parameters
index
1
Simulate Status
2
Simulate Value
3
Transducer Status
4
Transducer Value
5
Simulate En/Disable
When Simulate En/Disable in Table 6.3 above is set to
2, 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 propaga-
tion of the status to the trailing blocks, generation of a
process alarm, and as an operation test for trailing
blocks.
SIM. ENABLE
O
1
N
2
Figure 6.2 SIMULATE_ENABLE Switch Position
6-2
6. IN-PROCESS OPERATION
Description
Sets the data status to be
simulated.
Sets the value of the data
to be simulated.
Displays the data status
from the transducer block.
It cannot be changed.
Displays the data value
from the transducer block.
It cannot be changed.
Controls the simulation
function of this block.
1: Simulation disabled
(standard)
2: Simulation started
T0603.EPS
Amplifier Assembly
"OFF" during operation
Not in use
F0602.EPS
IM 01C22T02-01E
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