Output register overview – Delta MMC120 User Manual

Page 64

(XXXX)

4TTTTT+3 0000|0101|XXXX|XXXX
(05XX)

Requests

DRIVE OUTPUT

+4 XXXX|XXXX|XXXX|XXXX

(XXXX)

Data for command on axis 2

The following input registers would be returned:

SAR

CMND INDX (HEX)

3TTTTT+1 XXXX|XXXX|XXXX|XXXX
(XXXX)

STATUS

of axis 1

+2 XXXX|XXXX|XXXX|XXXX

(XXXX)

ACTUAL POSITION

of axis 1

3TTTTT+3 XXXX|XXXX|XXXX|XXXX
(XXXX)

STATUS

of axis 2

+4 XXXX|XXXX|XXXX|XXXX

(XXXX)

DRIVE

of axis 2

See also:

Output Register Overview
Communicating with the MMC120

Programmable Controller Commands

Output Register Overview

In addition to the

Input registers

, there are four 16-bit registers that are sent to the

MMC120 each time the I/O drop is accessed. The registers contain commands and data:

Register Number

Contents

4TTTTT + 0

Command

– axis 1

4TTTTT + 1

Data out – axis 1

4TTTTT + 2

Command

– axis 2

4TTTTT + 3

Data out – axis 2

The commands sent to the two axes are independent of each other.
Data should only be written to the module once per segment, otherwise new data

overwrites previous data. Only the last information placed in the output registers is

transferred to the module.