Delta MMC120 User Manual

Page 62

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Communicating with the MMC120

MMC120 Linear Motion Control Module

62

Delta Computer Systems, Inc. 360/254-8688

Command Type B - Get Parameters (0000 XXXX 1011 NNNN)

These commands allow the Programmable Controller to read the current state of the MMC120 initialization
parameters. These commands are similar to the Type A commands. The requested parameter will be returned
in the corresponding axis status area, and it will be available the next scan after the ACK bit toggles. It will
take 17 scans to get all 16 parameters.

BIT #

|

| 111|1111

1234|5678|9012|3456

-------------------

HEX

|SAR |CMND|INDX

VALUE

-------------------

0XB0

0000|XXXX|1011|0000 - Get CONFIGURATION

0XB1

0000|XXXX|1011|0001 - Get SCALE

0XB2

0000|XXXX|1011|0010 - Get OFFSET

0XB3

0000|XXXX|1011|0011 - Get EXTEND LIMIT

0XB4

0000|XXXX|1011|0100 - Get RETRACT LIMIT

0XB5

0000|XXXX|1011|0101 - Get PROPORTIONAL GAIN

0XB6

0000|XXXX|1011|0110 - Get INTEGRAL GAIN

0XB7

0000|XXXX|1011|0111 - Get DIFFERENTIAL GAIN

0XB8

0000|XXXX|1011|1000 - Get EXTEND FEED FORWARD

0XB9

0000|XXXX|1011|1001 - Get RETRACT FEED FORWARD

0XBA

0000|XXXX|1011|1010 - Get EXTEND ACCELERATION FEED FORWARD

0XBB

0000|XXXX|1011|1011 - Get RETRACT ACCELERATION FEED FORWARD

0XBC

0000|XXXX|1011|1100 - Get DEAD BAND ELIMINATOR

0XBD

0000|XXXX|1011|1101 - Get IN POSITION

0XBE

0000|XXXX|1011|1110 - Get FOLLOWING ERROR

0XBF

0000|XXXX|1011|1111 - Get AUTO STOP

The output registers are defined as follows:

4TTTTT + 0

Axis 1 command - Get parameter

4TTTTT + 1

Don't care

4TTTTT + 2

Axis 2 command - Get parameter

4TTTTT + 3

Don't care

When using this command the SAR field and the data register are ignored by the MMC120.

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