AMS DCB-274 manual Index Relative to Origin

Models: DCB-274

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ADVANCED MICRO SYSTEMS, INC.

 

SMC-27X2 SOFTWARE

 

 

 

 

 

 

 

Command

Function

 

Type

 

 

NV Bytes

Q

List Program

 

Immediate

 

 

N/A

 

 

 

 

 

 

Mnemonic

Data 1

Data 2

 

Result

 

 

 

(Name) Q (a)

Address (0-2047)

None

 

Listing

Q (List Program) (Note: Use in dumb terminal, single line mode).

 

List program stored in non-volatile memory using the format:

 

Address

Instruction

Value 1

Value 2

The values will be displayed only if applicable to the particular instruction type. Twenty instructions are displayed at a time. Use the <CR> key to list up to 20 more commands without pause. ESC quits and any other key single steps the listing.

Command

Function

 

Type

 

NV Bytes

R

Index Relative to Origin

 

Immediate, Program

4

 

 

 

 

 

Mnemonic

Data 1

Data 2

Result

 

 

 

 

 

 

(Name) R (n)

Position (±8,388,607)

None

None

R (Index Relative to Origin)

Move, with ramping, relative to the “0” origin. The target position has a range of ±8,388,607 steps from the ‘0’ origin.

The motion sequence is:

1.Wait until any previous motion is finished,

2.Read the current position then calculate the distance to the new target position,

3.Energize the motor winding,

4.Start stepping at the rate of the initial velocity (I),

5.Accelerate using a profile defined by the fixed table that approximates straight-line acceleration and a slope set by the “K” command,

6.The acceleration continues until the slew speed as specified by the “V” command is attained,

7.Motion continues at the slew speed, until the deceleration point is reached,

8.Decelerate (determined by the second “K” value) to a stop completing the index,

9.If another index is not commanded for the settling period, power down the motor (if auto power down is enabled).

This command may be implemented within a program. It is very useful when used in conjunction with the Origin command. Following, is an example:

P 0

Enter program mode.

O

Set origin and counter to 0.

R 1000

Move to position 1000 relative to 0.

P

Exit program mode.

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Page 54
Image 54
AMS DCB-274 manual Index Relative to Origin