Yokogawa EJA440E - Manual (Page 44)

<3. Parameter Setting>
3-31
IM 01C25T01-06EN
e. Burst Mode
When the
Burst mode is set to “Wired HART
Enabled”, the transmitter starts to send the data.
• Procedure to call up the display
DD and DTM [Root Menu] → Detailed setup
→Output condition →HART
output → Burst condition → Burst
Message 1,2 or 3 → Burst mode
→ Wired HART Enabled
3.3.16.2.2 Event Notification
When a setting change and a change of the Self-
diagnostics occur, device detect it as an event and
can transmit an alarm signal continuously.
Up to four events that occurred can be stored.
When using this function, set to Burst mode as
“Wired HART Enabled”.
(1) Set Event Notification
• Procedure to call up the display
DD and DTM [Root Menu] → Detailed setup
→Output condition →HART
output → Burst Condition →
Event Notification →
→ Event Mask Set the status to detect
→ Set Event Notification Timing
→ Event
Notification
Retry Time
Set the retry time when the event
occur.
→ Max Update
Time
Set the retry time when the event
does not occur.
→ Event
Debounce
Interval
The setting of the minimum event
duration
→ Event
Notification
Control
Stop the event monitor: Off
Shift to the monitor state: Enable
event notification on token-
passing data link layer
a) Event Mask
Set the status to detect in the
Event Mask
parameter.
Device Status Mask
Status group 1 Mask to 10 Mask
Ext dev status Mask
Device Diagnostic Status 0 Mask
Device Diagnostic Status 1 Mask
AO saturated Mask
AO fixed Mask
When changing the configuration of the device,
Configuration Changed (0x40) Flag (refer to Table
4.7) of Device Status is set, and Cfg chng count
(refer to subsection 4.1.3 (5)) is also incremented.
Configuration changed flag detection can be
masked by the Device Status Mask, but it is
impossible to mask the Cfg chng count.
Therefore, the configuration changes to the device
are always detected as an event regardless of the
setting of the Device Status.
b) Event Notification Retry Time/ Max Update
Time/ Event Debounce Interval
Set to Event Notification Retry Time, Max Update
Time and Event Debounce Interval.
For Event Notification Retry Time, set the value
that is smaller than Max Update Time.
Event Notification
Retry Time
/Max Update Time
Event Debounce Interval
--- Off
0.5 s 0.5 s
1 s 1 s
2 s 2 s
4 s 4 s
8 s 8 s
16 s 16 s
32 s 32 s
1 min 1 min
5 min 5 min
10 min 10 min
15 min 15 min
30 min 30 min
45 min 45 min
60 min 60 min
c) Event Notification Control
Select “Enable event notification on token-passing
data link layer” in the Event Notification Control
parameter to shift to the monitor state:
(2) Acknowledge Event Notification
The transmission of the event message stops when
event is approved.
• Procedure to call up the display
DD and DTM [Root Menu] → Detailed
setup →Output condition →
HART output → Burst condition
→ Event Notification →
Knowledge →
→ Acknowledge
Event Notification
Acquisition of the event number
and approval.
a) Get Event Number
Confirm the latest event number.
Execute Acknowledge Event Notification
method.
1) Enter Event Number is set to “0”.
2) OK.
3) Set “Trans 0: Read Event Notificaiton” to
Select Transaction.
4) OK.
5) Confirm Event Number.