YOKOGAWA DPharp EJX***A Series - Page 39

<3. Parameter Setting>
3-27
IM 01C25T01-06EN
(3) DeviceVariableSimulationFunction
(E󰀨ectiveonlywhensettingtoHART7)
HART 7
Using the simulation function, the output signal can
be conrmed by setting any value and status to the
selected device variable.
Call up the parameter and follow the message
shown.
After completing the step 5, the simulation starts.
Integral indicator shows output value and alarm
(AL.91) alternately.
• Procedure of device variable simulation
Step 1 Call up the
parameter
[Root Menu] → Diag/
Service → Test (DTM)/Test
device (DD) → Simulate
2 Selection of
Device Variable
Select one parameter from
the list below
O󰀨
PV
SV
TV
Percent Range
Loop Current
3 Setting of Value Input the simulate value
4 Setting of Data
quality
Select one parameter from
the list below
Bad
Poor accuracy
Manual / Fixed
Good
5 Setting of Limit
status
Select one parameter from
the list below
Not limited
Low limited
High limited
Constant
NOTE
• All the simulations for pressure, static
pressure, and capsule temperature are
reected to the output. Accordingly, the loop
current, LCD display, and communication
output are directly corresponded to the
simulate value.
The alarm output is also available according
to the simulate value.
• Damping is applicable for pressure,
static pressure, and capsule temperature
simulation.
(4) Squawk(E󰀨ectiveonlywhensettingto
HART 7)
HART 7
This feature can be used to identify the
communicating transmitter by remotely causing
LCD to display the particular pattern as shown in
the Figure 3.3.
“SQUAWK” continues for approximately 15
seconds, then is released automatically.
Enter the larger number to “Change number of
squawks to make” in order to prolong the duration
of squawk indication.
• Procedure to call up the Squawk display
[Root Menu] → Diag/Service → Test (DTM)/Test device
(DD) → Squawk
F0311.ai
Figure3.3 LCDdisplayforSquawk