<3. Parameter Setting >
3-19
IM 01C50T01-02EN
Table 3.2
Burst Parameters
Command
Parameter
Burst Command
Burst Msg Trigger
Mode
Burst Trigger
Source
Burst Trigger Units
PV
Cmd1: PV
Continuous
─
Window
PV
Depend on the
assigned variable
to PV
Rising
Falling
On-change
Loop Current and
Percent Range
Cmd2: % range/current
Continuous
─
Window
% range
%
Rising
Falling
On-change
PV, SV, TV, QV
Cmd3: Dyn vars/current
Continuous
─
Window
PV
Depend on the
assigned variable
to PV
Rising
Falling
On-change
Device Variable
Cmd33: Device vars
Continuous
─
─
Window
Top of Burst Device
Variable
Depends on
mapping
Rising
Falling
On-change
Device Variable with
status
Cmd9: Device vars w/status
Continuous
─
─
Window
Top of Burst Device
Variable
Depends on
mapping
Rising
Falling
On-change
Additional Device
status
Cmd48: Read Additional
Device Status
Continuous
─
─
On-change
All status
─
(1) Burst Message and Burst Mode
The transmitter can transmit three burst messages
at the maximum. The parameters for Burst
Message are as follows.
• Burst Command
• Update Period and Max Update Period
• Burst Msg Trigger Mode
a) Burst Command
Select the transmission data at Burst Command
parameter.
Burst Command
Command parameter
Cmd1: PV
PV
Cmd2: % range/current
Loop Current and Percent
Range
Cmd3: Dyn vars/current
PV, SV, TV, QV
Cmd33: Device vars
Device Variable
Cmd9: Device varsw/status Device Variable with
status
Cmd48: Read Additional
Device Status
Additional Device status
b) Burst Variable Code/Device Variable Code
This parameter need to be set when Burst
Command is Cmd9: Device vars w/status (up to
eight items) or Cmd33: Device vars (up to four
items).
c) Update period and Max Update Period
Set to Update Period and Max Update Period.
When the period that is earlier than the
operation period of each process value was set,
it is set automatically to become bigger than an
operation period of the transmitter.
For Update Period, set the value that is smaller
than Max Update Period.
