Appendix 3 List Of Special Registers - Mitsubishi A2CCPU User Manual

APPENDICES
/MELSE
Appendix 3 List of Special Registers
m 1 0
-
DM11
The special registers are used for specific purposes in the A2C.
Table 3.1 shows the special registers and their purposes.
It is impossible to write data to those special registers not marked
with *1 or *2. (Read only)
(a) *1 Special registers: Reset
(0)
only.
(b) *2 Special relays: Data can be written.
Check their purposes when used in the sequence program.
N8W
Explanation
Stored Dub
R d d RJItd
When fuse flow modules are detected, the lowest number of detected
Fuse blown
units is stored in hexadecimal. (Example: When fuses of Y50 to 6F
Fuse
blow module
D9107
D9100
output modules have blown, '50" is stored in hexadecimal) The module
(Cleared when all contents of D9100 to D9107 are reset to
0.)
number monitored by the peripheral is hexadecimal.
to
M9000
If VO module data is different from data entered are detected when the
VO unit verify VO module verify among the detected modules stored in hexadecimal. (Storing method is
power is turned on, the first I10 number of the lowest number module
D9116
error error module number
W123
to M9001
the same as that of D9000.) The module number monitored by the
number
peripheral is hexadecimal.
(Cleared when all contents of D9116 of 09123 are reset to 0.)
2&: t y N
arror
-
M9008
* When error is found as a result of self-diagnosis, error number is stored
Self-diagnostic error
diagnostic
Self-
-
M9005
the CPU unit is performing operation, and the value is stored in BIN AC DOWN time count
1 is added each time input voltage becomes 80% or less of rating while
code.
number in BIN code.
When one of F O to 255 is turned on by
l m
or
- 1
the F
Plnnunciator
number at which ex-
to M9009
09009 can be cleared by or instruction. If another F
redfail failure
has
detection
number, which has been detected earliest among the F numbers which
have turned on, is stored in BIN code.
number to be stored in 09009.
D9132
number has been detected, the clearing of D9009 causes the next
D9124
Error step
When operation error has occurred during execution of application
D9010 are renewed.
-
BIN code. Thereafter, each time operation error occurs, the contents of
occurred
* When operation error has occurred during execution of application
Step number at which
instruction, the step number, at which the error has occurred, is stored in
operation error has
off
to on, the contents of D9010 cannot be renewed unless M9011 is occurred
instruction, the step number, at which the error has occurred, is stored in
Step number at which
Error step
-
M9011
BIN code. Since storage into D9011 is made when M9011 changes from operation error has
cleared by user program.
I O
control
1 = Input in refresh mode, output in direct mode number node
0 = VO in direct mode VO control mode
The set mode is represented as follows:
- -
3 = VO in refresh mode
Table 3.1 List of Special Registers (Continue)
APP-6
1 8 INA) 66238-A