Mitsubishi QJ71GP21-SX, Reference Manual

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6
- 41 6.4 Refresh Parameters
6.4.2 Change of transfer target CPU-side device
6
PARAMETER SETTING
(2) When using a file register as an LW transfer destination (Except for
Q00JCPU and QS001CPU)
* 1 The file register capacity differs for each CPU module.
For capacity of each CPU module, refer to the following manual.
QCPU User's Manual (Function Explanation, Program Fundamentals), File registers
* 2 The contents of the file register are maintained even if the power goes from OFF to ON or when the
CPU module is reset.
When initializing the contents of the file register, the sequence program or GX Developer must be
used to clear the data.
* 3 Processing time differs depending on the storage location.
A large number of processing points will cause a longer sequence scan time.
POINT
It is convenient to use the following devices as target CPU-side devices of transfer
from LW.
• When the transfer range value is 8K (1FFF
H
) or less: Link register (W)
• When the transfer range value is 32K (7FFF
H
) or less: File register (R)
• When the transfer range value is 128K (1FFFF
H
) or less: File register (ZR)
Table 6.20 CPU-side device setting example
Link-side device CPU-side device CPU-side device setting method
LW0 to 1FFFF ZR0 to 131071
Register a 128K-point file register to the standard RAM or a
memory card (RAM).
*1 *2 *3
LB0 to 7FFF B0 to 7FFF Change the link relay (B) points from 8K to 32K.