7.4  SERVOPACK Parameter Data Flow
7.4.1  When the Power Supply Is Turned ON
7-23
7
Making Settings for Motion Control with the MPE720
7.4
SERVOPACK Parameter Data Flow
When performing motion control, you can read and write SERVOPACK parameters from the 
MP3000.
3.5 Automatically Updated Parameters on page 3-86
This means that the parameter settings are saved in both the MP3000 and in the slave SERVO-
PACK. Therefore, it is necessary to consider the relationship between the settings in both 
places.
This section describes the flow of data for the SERVOPACK parameters under different condi-
tions. 
The following descriptions of procedures and conceptual diagrams are for the SVC Function 
Module.
7.4.1
When the Power Supply Is Turned ON
The flow of data for the SERVOPACK parameters when the power supply is turned ON is 
shown below.
1.
The parameter data in the SERVOPACK’s EEPROM
*1 
is copied to RAM.
2.
The MP3000 copies the parameter data for all axes from flash memory
*1
 to SDRAM
*2
.
3.
Some gain settings are written from the MP3000 to the SERVOPACK RAM
*1
.
*1. EEPROM and flash memory: Memory that retains data even when the power supply is turned OFF.
*2. RAM, SRAM, and SDRAM: Memory that loses data when the power supply is turned OFF.
*3.  indicates the data that is written.
SDRAM
SRAM
MPE720
*3
*3
Parameters
EEP
-ROM
RAM
MECHATROLINK
MP3000
Transferred.Transferred.
Hard disk drive of the PC
SERVOPACKSERVOPACK
Control 
software
System 
software
SERVOPACK parameters 
for all axes
Flash 
memory
Settings