Mitsubishi Electric MELSEC-Q Series - Configuration and Roles of QD77 GF Memory

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Chapter 7 Memory Configuration and Data Process
7.1 Configuration and roles of QD77GF memory
7.1.1 Configuration and roles of QD77GF memory
The Simple Motion module is configured of the following four memories.
Model
Memory
configuration
Role
Area configuration
Backup
Parameter area Monitor data area Control data area
Positioning data area Block start data area Servo parameter area
Synchronous control area CC-Link IE Field Network area Cam area (No.1 to 100) (No.101 to 600) (No.7000 to 7001) (No.7002 to 7004) Servo amplifier setting ([Pr.101]) Servo amplifier parameter (MR-J4-B use)
QD77GF
Buffer
memory
Area that can be directly
accessed with sequence
program with PLC CPU.
– – – –
Not
possible
Internal
memory
Area that can be set only
with GX Works2.
– – – – – –
*2
– – –
Not
possible
Area that can be set only
using buffer memory.
– – – – – – – – – – –
Not
possible
Flash ROM
Area for backing up data
required for positioning.
– – – –
*1
–
– Possible
Internal
memory
(nonvolatile)
Area for backing up servo
parameter or cam data.
– – – – – – –
*2
– –
Possible
: Setting and storage area provided
– : Setting and storage area not provided
Possible : Data is held even when power is turned OFF.
Not possible: Data is lost when power is turned OFF.
*1: Parameter only
*2: "–" when MR-J4-GF or another servo amplifier is used.