Mitsubishi Electric Q26UD(E)HCPU - Page 529

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APPENDICES
A
Appendix 3 List of Special Register Areas
SD243
No. of base
slots
No. of base
slots
• The number of base unit slots set in parameter is stored.
When the number is not set in parameter, the number of
base unit slots used is stored.
• For the Q00UJCPU, the bits for the third to seventh
extension bases are fixed to "0".
• For the Q00UCPU, Q01UCPU, and Q02UCPU, the bits for
the fifth to seventh extension bases are fixed to "0".
S (Initial) New
Qn(H)
QnPH
QnPRH
QnU
SD244
SD243
No. of base
slots
(Operation
status)
The number of slots used is stored in the area corresponding
to each base unit as shown below. (The number of slots set in
the parameter setting.)
Q00J/Q00/Q01
SD244
SD245
No. of base
slots
(Mounting
status)
The number of slots where modules are actually mounted is
stored in the area corresponding to each base unit as shown
below.
Q00J/Q00/Q01
*1
SD246
SD250
Loaded
maximum
I/O
Loaded
maximum I/O
No
When SM250 is turned on from off, the first two digits of the
number, which is the last I/O number of the mounted modules
plus 1, are stored.
S (Request
END)
New
Qn(H)
QnPH
QnPRH
The value obtained by adding 1 to the end I/O number of a
mounted module and dividing by 16 is stored.
Example 1:End I/O number 010F SD250 = 0011
H
Example 2:End I/O number 0FFF SD250 = 0100
H
S (Initial)
Q00J/Q00/Q01
QnU
LCPU
SD254
MELSECN
ET/10,
MELSECN
ET/H
information
Number of
mounted
modules
Indicates the number of mounted MELSECNET/10 modules or
MELSECNET/H modules.
S (Initial) New
QCPU
SD255
Information from 1st module
I/O No.
Indicates the I/O number of mounted MELSECNET/10 module
or MELSECNET/H module.
SD256
Network
No.
Indicates the network No. of mounted MELSECNET/10
module or MELSECNET/H module.
SD257
Group
number
Indicates the group No. of mounted MELSECNET/10 module
or MELSECNET/H module.
SD258
Station
No.
Indicates the station No. of mounted MELSECNET/10 module
or MELSECNET/H module.
SD259
Standby
informatio
n
In the case of standby stations, the module number of the
standby station is stored. (1 to 4)
Qn(H)
QnPH
QnPRH
QnU
*2
SD260
to
SD264
Information
from 2nd
module
Data configuration is the same as that of the 1st module
(SD255 to SD259).
SD265
to
SD269
Information
from 3rd
module
Data configuration is the same as that of the 1st module
(SD255 to SD259).
Qn(H)
QnPH
QnPRH
QnU
*3
SD270
to
SD274
Information
from 4th
module
Data configuration is the same as that of the 1st module
(SD255 to SD259).
Number Name Meaning Explanation
Set by
(When Set)
Corresponding
ACPU
D9
Corresponding
CPU
SD243
SD244
b15 to b12 b11 to b8 b7 to b4 b3 to b0
Extension 3 Extension 2
Main
Extension 1
Extension 7 Extension 6 Extension 4Extension 5
SD243
SD244
b15 to b12 b11 to b8 b7 to b4 b3 to b0
Extension 3 Extension 2
Main
Extension 1
Fixed to 0 Fixed to 0 Extension 4Fixed to 0
SD245
SD246
b15 to b12 b11 to b8 b7 to b4 b3 to b0
Extension 3 Extension 2
Main
Extension 1
Fixed to 0 Fixed to 0 Extension 4Fixed to 0