Yokogawa EJA115 - Manual (Page 70)

IM 01C22T02-01E A-32
APPENDIX 6. SOFTWARE DOWNLOAD
APPENDIX 6. SOFTWARE DOWNLOAD
A6.1 Benefits of Software Download
This function enables you to download software to field devices via a F OUNDATION 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 field devices for your plant.
PID
AI AI
Update
Program
New
Diagnostics I/O
Figure 1. Concept of Software Downloading
A6.2 Specifications
Steady-state current:
Max. 16.5 mA
Current during FlashROM blanking time:
Max. 24 mA additional to steady-state current
F OUNDATION fieldbus download class:
Class 1
NOTE
Class 1 devices can continue the specified
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, down-
loaded software take effect, and this will tempo-
rarily halt fieldbus communication and function
block executions.
A6.3 Preparations for Software
Downloading
For software downloading, you need to prepare the
following:
• Software download tool
• Software binary file for each of the target field
devices
For the software download tool, use only the specific
program. For details, see the User’s Manual of
download tool. For information about updates of
software binary files for field devices and how to
obtain them, visit the following web site.
http://www.yokogawa.com/fi/fieldbus/download.htm
CAUTION
Avoid linking the software download tool to a
fieldbus segment, as this may adversely affect
the plant operation.