Delta MMC120 User Manual download pdf (Page 58)

Communicating with the MMC120 MMC120 Linear Motion Control Module

58 Delta Computer Systems, Inc. 360/254-8688

'S' - Save Null (53h)

The Save Null command saves the current value of the null so it can be recalled later with a Restore Null

command ('R').

's' - Save Integral Drive (73h)

This command saves the current value of the Integral Drive so it can be recalled later with a Restore Integral

Drive command ('r').

'U' - Update FLASH (55h)

This command instructs the MMC120 to write all parameters and profiles to FLASH for storage in case of

power loss or reset. Issuing 'U' with a 1 in the COMMAND VALUE field updates the Parameters and

Profiles, while 'U' with a 2 in the COMMAND VALUE field updates the Event Step Table. Do not use a

COMMAND VALUE greater than 2 with the 'U' command.

The 'U' command uses the Acknowledge bit (9) of the Status word to report the result of the update. If the

FLASH updated successfully, bit 9 of axis 1 is toggled; if the update was unsuccessful, bit 9 of axis 2 is

toggled.

'V' - Set SPEED (56h)

This command sets SPEED to the value in the COMMAND VALUE field.

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Delta MMC120 User Manual Page 58