Basic Setup; Parameter Configuration; Data Renewing And Upload/Download Function; Self-Diagnostic - YOKOGAWA DY025 User Manual

4.6.3 Basic Setup

■ Tag and Device Information
The tag number and device information can be checked as
follows:
• The location for the tag number and device information
Item
1 Device setup → 3. Basic setup → 1.Tag
Tag
1. Device setup → 4. Detailed setup →
Descriptor
5. Device information → 3. Descriptor
1. Device setup → 4. Detailed setup
Message
→ 5. Device information → 4. Message
1. Device setup → 4. Detailed setup
Date
→ 5. Device information → 5. Date
When changing the tag number or device information, enter
the information directly within the following limitations.
Item Number and characters
Tag 8
Descripter 16
Message 32
Date 2/2/2 (mm/dd/yy)
• mm : month
• dd : day
• yy : year

4.6.4 Parameter configuration

The parameter structure of the HART configuration tool is
hierarchical.
Refer to 4.6.10, Menu Tree Example for the corresponding
parameters. The menu tree shows a cross-reference of the
parameters for HART configuration Tool and BRAIN
Terminal.
See 5.4 Parameter Description for the functions of param-
eters.
Note that some display parameters of digitalYEWFLO are
different from those of HART Configuration Tools.
4.6.5 Data Renewing and Upload/download
function
(1) Data renewing
Following data are renewed in 0.5 to 2 seconds cycle.
PV, PV%, rnge, PVAO1, Total
Temp, TV% rnge, AO3: /MV only
(2) Upload/download function
Upload/download parameters from digitalYEWFLO to
the HART Configuration Tool.
Refer to the Menu Tree for the applicable parameters.
Precedure
T040601.EPS
T040701.EPS

4.6.6 Self-diagnostic

The self-diagnostic function of the digitalYEWFLO is
explained in 5.5 Error Code Lists.
It is also possible to carry out this function via HART
Configuration Tool.
The location in the 4.6.10 Menu Tree is:
1. Device Setup→2. Diag/Service→2. Self/test status

4.6.7 Software Write Protect

digitalYEWFLO configured data is saved by using a write
protect function. The write protect status is set to "Yes" when
8 alphanumeric characters are entered in the New password
field and transferred to the transmitter. When write protect is
set to "Yes," the transmitter does not accept parameter
changes. When the same eight alphanumeric string entered in
the New password field is also entered in the Enable wrt
10min field and transferred to the digitalYEWFLO, it will be
possible to change transmitter parameters during a 10 minute
period.
To change the digitalYEWFLO from the write protect
"Yes"status back to Write protect "No" status, use Enable
wrt 10min to first release the write protect function and then
enter eight spaces in the New password field.

4.6.8 HART Specific Functions

■ Burst Mode
digitalYEWFLO continuously sends the data via HART
Configuration Tool when the burst mode is set on (any one
of PV, PV % range, or AO1. The data is sent intermittently
as a digital signal at 3 times a second.
The burst mode is set as follows.
(1) Setting the data to be sent
The location in 4.6.10 Menu Tree is:
1. Device Setup → 4. Detailed Setup → 3. Configure
outputs → 5. HART Output → 4. Burst option
Select the type of data to be sent from the following
options:
- Instantaneous flow rate (PV)
- Output in % and current output (% range/current)
- 4 to 20 mA output (Process vars/crnt)
(2) Setting the burst mode
The location in 4.6.10 Menu Tree is:
1. Device Setup → 4. Detailed Setup → 3. Configure
outputs → 5. HART Output → 4. Burst mode
Then, select "On" at the menu to start the burst mode.
To release from the burst mode, call up the burst mode
display, and set to "Off."
The default setting is "Off."
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4. BASIC OPERATING PROCEDURES
IM 01F06A00-01E