88
agility
TM
Series Soft Start User Manual
MAN-AGY-001. Version 04. 21/09/2018
Special Modbus Registers
List of
special
Modbus registers, descriptions, and usage.
Window registers section
There is a section of Modbus registers that can be used for special (user programable) purposes.
Register Name
Reg ID
Description
Window View
157
Selects what is viewed through the window
0
–
Patched Registers
1
–
Log Records
Window Code
158
Log Record function
0
–
None
1
–
Report
2
–
Rewind
3
–
Unwind
4
–
Seek Absolute
5
–
Seek Relative
6
–
Next Record
16
–
Auto Increment
Reserved
159
For future functionality.
Patch Address 1 to 16
160 to 175 16 place holders for the registers that need to be
patched
Window 1 to 24
176 to 199 Either: -
If Window View set to 0
16 data holders related to the selected addresses in
the Patch Address section (in Window 1 to 16 only).
Or
For Window View set to 1
All 24 words to hold the currently select log record
Currently there are two uses for this group of Modbus registers.
1)
Register patching.
Register patching is enabled when the Window View register (157) is set a to Patched
Registers (0).
It allows the user to patch (re-map) a selection of disparate registers into a contiguous
register section or window, so that retrieval of the most requested data can be handled
in more efficient single block reads by a host controller (PLC). When the address of a
register is placed in the Patch Address section (160 to 175) then the corresponding