6 DATA USED FOR POSITIONING CONTROL
6. DATA USED FOR POSITIONING CONTROL
6.1 Memory Configuration and Roles
The QD74MH is equipped with the following two memories for data exchange with
PLC CPU and data save.
Memory
configuration
This area can be directly accessed with sequence program from
Buffer memory
PLC CPU, and the parameter data and positioning data can be
changed.
Flash ROM
Details of buffer memory required for positioning can be backed up.
(1) Details of areas
Table 6.1 Memory configuration
Role
(a) Parameter area
The parameters, such as basic parameters, OPR parameters, manual
control parameters or system parameters required for positioning control
can be set and stored.
(b) Monitor data area
The operation state for the common monitor or axis monitor can be stored.
(c) Control data area
The data, for positioning such as common control data or axis control data,
and for some sub functions can be set and stored.
(d) Positioning data area
The positioning data No.1 to 32 can be set and stored.
(e) Servo parameter area
The parameters required for positioning control on servo amplifier can be
set and stored.
6 - 1
MELSEC-Q
Area configuration
possible
Possible
: Accessible
: Not accessible
Not
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