ABB SREA-01, User Manual

Page: 102 / 106

Appendix C: Creating custom device templates for unsupported devices
102
Scaling - The Modbus register value will be divided by the scale value before
presented on the web page, logged or compared with for alarm. It will be multiplied
with the scale value before the value is written to the drive.
Examples:
Modbus register value = 510, Scale value = 10. 51,0 will be viewed on web page.
Modbus register value = 5118, Scale value = 100. 51,18 will be viewed on web page.
Web page input = 127,5 Scale value = 10. 1275 will be written to Modbus register.
Offset – The Modbus register value will be subtracted with the offset value before it
is presented on the web page, logged or compared with for alarm. If scaling is also in
use it is done before the offset is subtracted.
The Offset value will be added to the value before value is written to a drive. If
scaling is also in use it is done after the offset is added.
Mask – Is used to mask out specific bits from the Modbus register, on the web page
the value is presented in binary. The Modbus register will be masked (logic and) and
shifted to the right before the value is presented on the web page, logged or
compared with for alarm.
Example:
Modbus register value = 214 (D6 hex), Mask = 240 (F0 hex). 1101 (13) will be
viewed on web page.
Presentation – Defines how a value will be represented on a page. Available
options are:
• Show as value
This option will read from the address and present the result at the view page.
• Writeable value
This option reads the value from the address and presents it. There will be a set
button next to the value at the view page which makes it possible to write to the
address.
• Show with enumeration
This option will read the value from the address and present it with the
corresponding enum string (See Enum below).
• Writeable value with enumeration
This option will read the value from the address and present it with the
corresponding enum string. There will be a drop down next to the value at the view
page where available enum strings will be selectable. A selected value will be written
to the address.
Enum – Here the enum variables are defined in following format [number]=[string].
Each enum is separated by a semicolon ‘;’ with no blank spaces.
Examples:
0=Off;1=On
0=Sunday;1=Monday;2=Tuesday;3=Wednesday;4=Thursday;5=Friday;6=Saturday