Data Array - Delta ASDA-A2 Series User Manual

7.2.2 Data Array

ASDA-A2 series provides many motion control functions, such as Capture, Compare and E-CAM.
However, additional memory spaces become necessary when using these functions. Therefore, ASDA-
A2 series reserves one block of internal consecutive memory space, data array for saving the data of
Capture, Compare and E-CAM functions. Please refer to the following table for the introduction of data
array.
Usage
Array Size
Retain Data when
power is off
Relevant Parameters
The content of the data array can not be read and written via external commands. It only can be read
and written through the settings of P5-10 ~ P5-13. Please refer to the following table for explanation:
Parameter
Data Amount (N x
P5-10
32 bits)
Read / Write
P5-11
Address
Read / Write Data
P5-12
Block 1
Revision April, 2010
Save Capture data.
Save Compare value.
Save E-CAM table.
Note:
The data array is user-defined and the system will not partition off the data
array for Capture, Compare and E-CAM function respectively. Therefore, the
memory blocks of the data array may be overlapped.
Please pay close attention when defining the data array.
32-bit integer x 800 numbers of data (the data address when reading
and writing data array is determined by P5-10).
Each data should have a corresponding address. This address should
be specified when reading and writing data array.
The address is within the range of 0 ~ 799.
Set P2-08 to 30 first and set to 35 next. Then, the content of the data
array will be saved in EEPROM when power is off.
Please save data when Servo Off.
After re-power the servo drive, the content of the data array will be
written automatically.
Perform read and write operation through P5-10 ~ P5-13.
Relevant Parameters for Data Array
Name
This parameter is used to set the data amount of data array (N x
32 bits). N is the capacity of the data array (Read only).
This parameter is used to set the data address when reading and
writing data array.
When reading data through the keypad: Read the content specified
by P5-11. After read operation is completed, the address of P5-11
will not change.
When writing data through the keypad: Write the content specified
by P5-11. After write operation is completed, the address of P5-11
will increase 1 automatically.
When reading data through the communication: Read the content
specified by P5-11. After read operation is completed, the address
of P5-11 will increase 1 automatically.
When writing data through the communication: Write the content
specified by P5-11. After write operation is completed, the address
of P5-11 will increase 1 automatically.
Chapter 7 Motion Control Function|ASDA-A2 Series
Data Array
Explanation
7-7