Delta MMC120 - Manual (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.