Memory Configuration And Data Process; Configuration And Roles - Mitsubishi Electric RD77MS2 User Manual

Melsec iq-r simple motion module
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12.9

Memory Configuration and Data Process

The memory configuration and data transmission of Simple Motion module are explained in this section.
The Simple Motion module is configured of four memories. By understanding the configuration and roles of two memories, the
internal data transmission process of Simple Motion module, such as "when the power is turned ON" or "when the PLC
READY signal changes from OFF to ON", can be easily understood. This also allows the transmission process to be carried
out correctly when saving or changing the data.

Configuration and roles

The Simple Motion module is configured of the following four memories.
: 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.
Memory
Role
configuration
Buffer memory
Area that can be directly
accessed with a program
with a CPU module
Internal memory
Area that can be set only
with the engineering tool
Area that can be set only
using buffer memory
Flash ROM
Area for backing up data
required for positioning
Internal memory
Area for backing up servo
(nonvolatile)
parameter or cam data
Memory
Role
configuration
Buffer memory
Area that can be directly
accessed with a program
with a CPU module
Internal memory
Area that can be set only
with the engineering tool
Area that can be set only
using buffer memory
Flash ROM
Area for backing up data
required for positioning
Internal memory
Area for backing up servo
(nonvolatile)
parameter or cam data
*1 Parameter only
12 DATA USED FOR POSITIONING CONTROL
542
12.9 Memory Configuration and Data Process
Area configuration
Parameter
Monitor
Control
area
data area
data area
Area configuration
PLC CPU
Servo
Synchronous
memo
parameter
control area
area
area
Positioning data area
(No. 1 to
(No. 101
100)
to 600)
Backup
Cam area
Not possible
Not possible
Not possible
*1
Possible
Possible
Block start data area
(No. 7000
(No. 7002
to 7001)
to 7004)

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