DL8000 Preset Instruction Manual
Revised February-2016
Modbus Communications
B-9
Figure B-3. Modbus Configuration - History Table Tab
3.
Review the values in the following fields:
Field
Description
Registers
Indicates the specific Modbus register numbers the
system uses to acquire the Current Date (default of
7046
), the Current Time (default of
7047
), and the
Events/Alarms log (default
32
).
The Current Date and Current Time values identify the
current date and time on the DL8000 and are most
useful if you want the date and time as floating point
numbers in the format DDMMYY and HHMM.
Note
: Although you can define other values for these
registers, it is strongly suggested you use the
default values.
History Index
Mode
Indicates how the system handles requests for history
records from the history index. Valid values are:
EFM Extensions
Mode
Returns the history index as
one
less
than the value of the internal
history index and returns history
data for the index requested.
Override Mode 1
Returns the history index as the
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