4-1
Section 4 Getting Started
Installation and Operation Manual
X-DPT-FF-MT3809G-Alarms-eng
Part Number: 541B218AAG
December, 2017
Model MT3809G F
OUNDATION
TM
Fieldbus
4.1
Getting Started
DD files are needed to operate the F
OUNDATION
Fieldbus.
The DD files for the MT38xx FF can be found on website www.fieldbus.org
Find the files under <End User Resources>, then <Registered Products>,
choose for manufacturer <Brooks Instrument> and for Category <Flow>,
then <Search>.
From here you can open either SLA Series, or MT38xx, and download the
DD files.
The Analog Input (AI) and Intergrator (IT) blocks are standard F
OUNDATION
Fieldbus blocks and can be configured with any F
OUNDATION
Fieldbus
configuration tool. Each of those blocks contain an output parameter that
contains the output value of the block.
Configure Analog Input (AI) block for live measurement
In case of the AI block the output can be configured to use the primary
value of the analog transducer block. The primary value is the default and
used output for the flow value. To configure the output of the analog input
such that the actual calculated flow is directly set to the output without any
scaling, a minimum configuration of the following three parameters is
necessary:
Parameter
Value
Remark
XD_SCALE.UNITS_INDEX
% (1342)
This is the only possible value for this parameter
CHANNEL
Flow Channel
This is the only possible value for this parameter
L_TYPE
Indirect
This is the only supported value, other values which can be
chosen will return a write error condition
Once the configuration above is completed, the flow value will be written to
the out parameter when the AI block is given an execution time on the bus.
When an execution time is assigned for the AI block it is possible to set the
mode of the AI block to AUTO and will the flow be written to the out
parameter.
Integrator (IT) block
The IT block can be configured with a foundation fieldbus configuration
application to connect the out parameter of the AI block to the in parameter
of the IT block.
