Mitsubishi MELSEC-Q QD77MS, User Manual

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Chapter 7 Memory Configuration and Data Process
7.1 Configuration and roles of QD77MS memory
7.1.1 Configuration and roles of QD77MS memory
The QD77MS is configured of the following four memories.
Area configuration
Positioning data area Block start data area Servo parameter area
Model
Memory
configuration
Role
Parameter area Monitor data area C
ontrol data area
(N
o. 1 to 100)
(N
o. 101 to 600)
(N
o.7000 to 7001)
(N
o.7002 to 7004)
PL
C CPU m
em
o a
re
a
(
Pr
.1
00
, PA,
PB,
PC
)
(
PA1
9,
PD,
PE,
PS,
PF
, Po
, PL
)
Synchronous control area C
am area
Backup
Buffer
memory
Area that can be directly
accessed with sequence
program with PLC CPU.
–
Not
possible
Area that can be set only
with GX Works2.
– – – – – – – – – – – –
Not
possible
Internal
memory
Area that can be set only
using buffer memory.
– – – – – – – – – – –
Not
possible
Flash ROM
Area for backing up data
required for positioning.
– – – – – – Possible
QD77MS2
QD77MS4
Internal
memory
(nonvolatile)
Area for backing up servo
parameter or cam data.
– – – – – – – – – Possible
Buffer
memory
Area that can be directly
accessed with sequence
program with PLC CPU.
– – – –
Not
possible
Area that can be set only
with GX Works2.
– – – – – – – – –
Not
possible
Internal
memory
Area that can be set only
using buffer memory.
– – – – – – – – – – –
Not
possible
Flash ROM
Area for backing up data
required for positioning.
– – – – – – Possible
QD77MS16
Internal
memory
(nonvolatile)
Area for backing up servo
parameter or cam data.
– – – – – – – – – Possible
: Setting and storage area provided, Not possible: Data is lost when power is turned OFF
– : Setting and storage area not provided, Possible: Data is held even when power is turned OFF
: Parameter only