Table of Contents - TG Drives

EXTENDED REGISTER GROUPS
DSTORE,
Group Group
No.
Description
DStore,
DStore 54 Stores 32bit signed values. The max-length of
DStore is 2047.
This group enables an application programmer to
implement a FIFO (First In First Out)
or a LIFO (Last In First Out), data structure.
GENERAL
The Dstore meachanism allows the user to store 2047 samples of any internal
32bit variable in each of the two available buffers. By using the Connect
mechanism to do so the Dstore can be seen as a two channel digital oscilloscope
within the DMC 2 .
The data stored can then be uploaded over the serial channel or connected to an
analog output for analysis.
This group is not affected by a GDisp terminal mode command.
FUNCTION
When a sample of data is written to a Dstore buffer a pointer is incremented so that
the next data can be written. When saturated the oldest data will be lost. The
numebr of data (if less than 2047) can be seen in Dtorel.Lengthx
RELATED ITEMS
Connect statement allows the user to automatically store to or extract data from the
dstore buffers
EXAMPLE USAGE
To store values to DStore
DStore.in1,Rd1.Speed ; or any other valid data
Connect Dstore.In1 to reg.torque
NOTE. If you store faster than once per servo cycle then multiple entries with the
same value will be found in DStore..
To ’play’ the recorded data to an analog output port do:
Connect Ana.Out1 to DStore.Peek1
To remove a value from DStore do,
R100, DStore.Out1 ; FIFO structure (This is a queue)
R100, DStore.In1 ; LIFO structure (This is a stack)
To clear DStore from all values do,
Dstore.Length1, 0
User's Manual 5.1 Inmotion Technologies AB
Doc. No.9032 0027 01 (B), Rev. 11.07.2001
159