APPENDICES
APP
−
46
Table 3.2 Special Register List (Continued)
Number
Name
Stored Data
Explanation
!
The element numbers for priorities 1 to 4 (D9038) and 5 to 7 (D9039) for the lighting
(or flashing) of the ERROR LED when an error occurs, are set and changed.
B15
B12B11
B8 B7
B4 B3
B0
Priority
B15
B12 B11
B8 B7
B4 B3
B0
_
5
4
3
2
1(Position)
6
7
Element
No.
Content
0.
Not displayed
1.
I/O verify, fuse blown
2.
Special module
Link parameter
Operation error
3.
CHK instruction error
4.
Annunciator
5.
LED instruction-related
6.
Battery error
7.
Clock data
M9038
(Note-2)
M9039
(Note-2)
LED display
priority
Priorities 1 to 4
Priorities 5 to 7
Even if "0" is set, errors which cause
CPU operation to stop (including
parameter settings) are unconditionally
displayed on the LED display.
Default values: D9038=H4321
D9039=H0765
!
When M9044 is turned ON/OFF by the peripheral device to activate the STRA or
STRAR sampling trace instruction, the value stored in D9044 is used as a
sampling trace condition.
D9044
For sampling
trace
Step or time for sampling trace
Scan - 0
Time - Time (10ms increments)
Stored in BIN
D9049
SFC work area
Extended file register block No.
!
Stores the block No. of the extended file registers used as an SFC work area.
Upper 8 bits ............ Block No. is stored.
Lower 8 bits ............. Step number is stored.
D9050
SFC program
error number
Error number which occurred in
SFC program
!
Stores in BIN the error number which occurred in the SFC program.
0
: No error
80 : SFC program parameter error
81 : Simultaneously executed step count excess
82 : Block starting error
83 : SFC program operation error
D9051
Error block
Block number where error
occurred
!
Stores in BIN the block number where error occurred in the SFC program.
Note that if error 82 occurred, the start source block number is stored.
D9052
Error step
Step number where error occurred
!
Stores in BIN the step number where error 83 occurred in the SFC program.
When error 80 or 81 occurred, "0" is stored.
When error 82 occurred, the block starting step number is stored.
D9053
Error transition
Transition condition number where
error occurred
!
Stores in BIN the transition condition number where error 83 occurred in the SFC
program.
When error 80, 81 or 82 occurred, "0" is stored.
D9054
Error sequence
step
Sequence step number where
error occurred
!
Stores in BIN the transition condition or operation output sequence step number
where error 83 occurred in the SFC program.
D9055
Status latch
Status latch step
!
Stores in BIN the step number which was being executed when status latch was
executed.
D9072
PC
communication
check
Computer link data check
!
Used when making a self-loopback check.
D9081
Number of free
communication
request
registration
areas
Number of free communication
request registration areas
!
Stores the number of free request registration areas for communication with the
MNET/MINI(-S3). (Max. 32 areas)
D9085
Time check
value setting
register
Default value = 10s
!
Stores the time check value for execution of the link instruction (ZNRD, ZNWR)
for MELSECNET/10.
!
Setting range
: 1 to 65535s
!
Setting increments : 1s
!
When the setting is 0, operation is performed with the default value of 10s.
D9090
(Note-1)
Special function
module count
excess
Special function module count
excess
!
Stores in BIN the value found by dividing the "first I/O number of the last
registered special function module" by 16 when the number of registerable special
function modules is exceeded.
D9091
(Note-1)
Detail error
number
Self-diagnostic detail error number
!
Stores in BIN the detail error number at self-diagnosis occurrence.
D9094
(Note-2)
(Note-3)
Replaced I/O
starting I/O
number
Replaced I/O starting I/O number
!
Stores in BIN the upper two digits of the first I/O number of the I/O module
dismounted/mounted online. Example: Input module X2F0
→
H2F
