Mitsubishi Electric MELSEC-Q00U(J)CPU User Manual page 510

Item
The following file usability setting for each
program is not available.
File usability setting for
• File register
each program
• Initial device value
• Comment
I/O refresh setting for each I/O refresh setting for each program is not
program available.
Usage of a part of the special relay and special
register is different.
SM/SD
A series-compatible special relay and special
register are not supported. (SM1000 to
SM1255/SD1000 to SD1255)
Scan time and each processing time are
Processing time
different.
The number of steps increases by one
• Index modification is performed.
• A leading or trailing edge instruction is used.
Number of steps
• Bit devices are used as word data by
specifying digits using K1, K2, K3, K5, K6, or
K7, or by specifying a device number of other
than multiples of 16.
*1 Even the local device file usability setting is not available for the Q02UCPU, Q03UDCPU, Q04UDHCPU, and
Q06UDHCPU if the serial number (first five digits) is "10011" or earlier.
*2 This will not apply when the High Performance model QCPU is replaced with the High-speed Universal model QCPU
and Universal model Process CPU.
*3 Only the High-speed Universal model QCPU and Universal model Process CPU support this setting.
*4 This will apply only when the High Performance model QCPU is replaced with the High-speed Universal model QCPU
and Universal model Process CPU.
(3) Drive and file
Item
Files in the standard ROM cannot be booted to
the program memory.
Boot file setting
Booting operation is different.
A memory card (SRAM card, ATA card, or Flash
card) cannot be specified as a transfer source.
508
Precautions
*1
*4
when:
Precautions
*1
Replacement method
When file usability is set, modify the program as
described in Page 552, Appendix 5.4.5.
Use the RFS instruction if I/O refresh setting for
each program is required.
Replace the corresponding special relay and
special register as described in Page 562,
Appendix 5.5.
By using a programming tool, A series-
compatible special relay and special register
can be replaced with the Universal model
QCPU-compatible special relay and special
register.
Note, however, that the ones which are not
compatible with the Universal model QCPU are
replaced with SM1255 and SD1255. Modify
programs as needed.
Modify programs as needed, checking the
processing timing.
If index modifications mentioned on the left are
frequently used in the program, the program
size may exceed the storage capacity of the
replaced CPU module. After the program
controller type is changed, check the program
size using the confirm memory size function. If
the program size exceeds the storage capacity,
take the following actions or change the CPU
module to that with larger program memory.
• Move parameters and device comments to
the standard ROM.
• Reduce the reserved area for online change.
• Use the file register, extended data register,
and extended link register within 64K words
because the number of steps decreases by
one when used in that way.
Replacement method
Since the Universal model QCPU holds the data
in the program memory even when the battery
voltage drops, the boot file setting is not
necessary.
Move files with the boot setting (from the
standard ROM to the program memory) to the
program memory.
Replacement method when the parameter-valid
drive and the boot file setting are set in the High
Performance model QCPU is described in Page
555, Appendix 5.4.6.
Specify an SD memory card as a transfer
source.
Reference
Page 88, Section 2.10,
Page 552, Appendix 5.4.5
MELSEC-Q/L
Programming Manual
(Common Instruction)
Page 562, Appendix 5.5
QCPU User's Manual
(Hardware Design,
Maintenance and
Inspection)
---
MELSEC-Q/L
Programming Manual
(Common Instruction)
Reference
Page 104, Section 2.11,
Page 555, Appendix 5.4.6