Yokogawa EJX930A - Manual (Page 29)

<4. Getting Started>
4-4
IM 01C25T02-01E
4.4 Integration of DD
If the host supports DD (Device Description), the
DD of the transmitter needs to be installed. Check if
host has the following directory under its default DD
directory.
594543\000C
(594543 is the manufacturer number of
Yokogawa Electric Corporation, and 000C is the
EJX device number, respectively. The device
number of EJA is "0011".)
If this directory is not found, the DD of the
transmitter has not been included. Create the above
directory and copy the DD file (0m0n.ffo, 0m0n.
sym) (m, n is a numeral) into the directory. ‘0m’ in
the file name shows the device revision, and ‘0n’
shows the DD revision. If you do not have the DD or
capabilities files, you can download them from our
web site:
http://www.yokogawa.com/fld/
Once the DD is installed in the directory, the name
and attribute of all parameters of the transmitter are
displayed.
Off-line configuration is possible by using
capabilities files.
The transmitter has two capabilities levels, “1” and
“2”.
Select “Capabilities level = 1” when the transmitter
does not have LC1(PID function) option.
Select “Capabilities level = 2” when the transmitter
has LC1(PID function) option.
The capabilities level defines the kind and the
number of function blocks that can be used.
The table below shows the relation.
The relation between and function blocks that can be
used
Capabilities
Level
AI SC IT IS AR PID
1 3 1 1 1 1 0
2 3 1 1 1 1 1
4.5 Set the parameters using
DTM
When configure the parameters using FieldMate,
use the DTM (Device Type Manager) shown in the
Table 4.2.
Table 4.2 DTM
DTM Transmitters
Name
Model
Name
Devise
Type
Device
Revision
EJX V5.1
EJXA
(Except
EJX9A)
EJX
(0x000C)
5
EJA –NEXT
V1.1
EJAE EJA-NEXT
(0x0011)
1
“Field Diagnostics” function (refer to IM 01R01A15-
01EN) is available on EJX FF DTM Revision
3.4.0.21 or later and EJA-NEXT FF DTM Revision
3.4.0.21 or later.
The DTM corresponding to the above is included in
Yokogawa Device DTM Library 4.0/Device Files
R 3.05.00 or later.
4.6 Reading the Parameters
To read the transmitter parameters, select the AI1
block of the transmitter from the host screen and
read the OUT parameter. The current selected
signal is displayed. Check that MODE_BLOCK
of the function block and resource block is set to
AUTO, and change the signal input and read the
parameter again. A new designated value should be
displayed.
4.7 Continuous Record of
Values
If the host has a function that continuously
records the indications, use this function to list the
indications (values). Depending on the host being
used, it may be necessary to set the schedule of
Publish (the function that transmits the indication on
a periodic basis).
4.8 Generation of Alarm
Generation of an alarm can be attempted from
the transmitter. Block alarm, Output limit alarm,
and Update alarm are informed to the host. When
generating alarm, a Link Object and a VCR Static
Entry need to be set. For details of Link Object and
VCR Static Entry, refer to section 5.6.1 Link object
and section 5.5.1 VCR Setting.