Mitsubishi QJ71LP21 Reference Manual page 407

APPENDIX
Number Name Meaning
0: Automatic mode
SD240 Base mode
1: Detail mode
0 : Main only
No. of
1 to 7: No. of
SD241 extension
extension
bases
bases
Base type
differentiation
0: QA
A/Q base installed
SD242
differentiation (A mode)
1: Q
installed
(Q mode)
SD243
No. of base
No. of base slots
slots
SD244
Loaded Loaded maximum
SD250
maximum I/O I/O No.
Error detection
SD280 CC-Link error
status
Number of points
SD290
allocated for X
Number of points
SD291
allocated for Y
Number of points
SD292
allocated for M
Device
Number of points
SD294 allocation
allocated for B
(Same as
Number of points
parameter
SD296
allocated for SB
contents)
Number of points
SD302
allocated for D
Number of points
SD303
allocated for W
Number of points
SD304
allocated for SW
App - 39
Special Register List (Continued)
• Stores the base mode.
• Stores the maximum number of the extension bases being installed.
B7
Fixed to 0 to
B is
B is
B15
SD243
Extension 3 Extension 2 Extension 1
SD244 Extension 7 Extension 6 Extension 5 Extension 4
• As shown above, each area stores the number of slots being installed.
• When SM250 goes from OFF to ON, the upper 2 digits of the final
I/O number plus 1 of the modules loaded are stored as BIN values.
When Xn0 of the installed CC-Link goes ON, the bit
1
corresponding to the station switches ON.
When either Xn1 or XnF of the installed CC-Link switch OFF, the
2
bit corresponding to the station switches ON.
Switches ON when the CPU cannot communicate with the
3
installed CC-Link.
Information
of 3
B12 B11
B15
Vacant
1 When Xn0 of the installed CC-Link goes ON, the bit
corresponding to the station switches ON.
2 When either Xn1 or XnF of the installed CC-Link switch OFF, the
bit corresponding to the station switches ON.
3 Switches ON when the CPU cannot communicate with the
installed CC-Link.
B15 to
8th
...
module
Information of
• Stores the number of points currently set for X devices
• Stores the number of points currently set for Y devices
• Stores the number of points currently set for M devices
• Stores the number of points currently set for B devices
• Stores the number of points currently set for SB devices
• Stores the number of points currently set for D devices
• Stores the number of points currently set for W devices
• Stores the number of points currently set for SW devices
Explanation
B2 B1 B0
Basic base
1st extension
base
2nd extension
base
When no extension
to base is installed, the
value is fixed to 0.
7th extension
base
B12 B11 B8 B7 B4 B3
Main
Information Information
of 2 of 1
B8 B7 B4 B3 B0
B9 B8 to
1st 8th
...
module module
Information of
1
2
Corresponding
Set by
ACPU
(When set)
D9
S (Initial) New
S (Initial) New
S (Initial) New
B0
S (Initial) New
S
(Request New
END)
S (Error) New
1st module
2nd module
3rd module
4th module
S (Error) New
B0
1st
module
S (Initial) New
MELSEC-Q
Applicable
CPU
QCPU
Remote
+Rem
QCPU
Remote
QnA
+Rem
+Rem
+Rem
+Rem
App - 39