Manual

<Appendix 8. Software Download>
A8-1
IM 01S01C01-01EN
Appendix 8. Software Download
A8.1 Benets of Software
Download
This function enables you to download software to
eld devices via a FOUNDATION Fieldbus to update
their software. Typical uses are to add new features
such as function blocks and diagnostics to existing
devices, and to optimize existing eld devices for
your plant.
PID
AI AI
Update
Program
New
Diagnostics
I/O
FA0801.ai
Figure A8.1 Concept of Software Downloading
A8.2 Specications
Steady-state current: Max. 15 mA
Current Draw (Steady-state): 15mA (max)
Current Draw (Software Download state):
24mA (max)
Current during FlashROM blanking time:
Max. 24 mA additional to steady-state current
Based on Fieldbus Foundation Specication
Download class: Class 1
NOTE
Class 1 devices can continue the specied
measurement and/or control actions even
while software is being downloaded to them.
Upon completion of a download, however, the
devices will be reset internally to make the new,
downloaded software take effect, and this will
halt eldbus communication and function block
executions for about one minute.
A8.3 Preparations for Software
Downloading
For software downloading, you need to prepare the
following:
• Software download tool
• Software for downloading le for each of the
target eld devices
For the software download tool, use only a program
developped for that purpose. For details, see the
software’s User’s Manual. For information about
updates of software binary les for eld devices and
how to obtain them, visit the following web site.
http://www.yokogawa.com/d/d-top-en.htm
CAUTION
Do not hook up the software download tool to a
eldbus segment while the plant is in operation,
as it may temporarily disturb the communication.
Always connect the tool before starting
operation.
NOTE
The download tool can not execute downloading
during other system connects to the system/
network management VFD of the device.