Mitsubishi MELSEC L Series User Manual page 303

Number Name Meaning
Error individual Error individual
SD26
information information
Error number
SD50 Error reset that performs
error reset
Bit pattern
indicating
Battery low
SD51 where battery
latch
voltage drop
occurred
Explanation
9) Failure information
Number Meaning
SD16 Failure information 1
SD17 Failure information 2
SD18 Failure information 3
SD19 Failure information 4
Failure information 5
SD20
Failure information 6
SD21
Failure information 7
SD22
Failure information 8
SD23
Failure information 9
SD24
Failure information 10
SD25
Failure information 11
SD26
12) File diagnostic information
SD16 Failure information1 (H)
SD17
File name
SD18
(ASCll: 8 characters)
SD19
SD20
EXtension *6
SD21
(ASCll; 3 characters)
SD22
SD23 Failure information 2
(CRC value that is read)
SD24
SD25
Failure information 3
(CRC value that is calculated)
SD26
*6 For extension names, refer to the table on Page 296.
13) Parameter No./CPU No.
Number Meaning
SD16 Parameter No.*16
SD17 CPU No. (1 to 4)
SD18
SD19
SD20
SD21
SD22 (Empty)
SD23
SD24
SD25
SD26
*16 For details of the parameter No., refer to the following:
User's Manual (Function Explanation, Program
Fundamentals) for the CPU module used
Stores error number that performs error reset
• If a battery voltage drops, the corresponding bit stores "1"
(turns on).
• This register remains on even after the battery voltage
returns to normal.
b15 to b3 b2 b1 b0
0
Battery error for
CPU module
SRAM card battery alarm
SRAM card battery error
*1 These bits are not available for the Basic model QCPU
and LCPU.
• If an alarm occurs, data can be held within the time
specified for battery low.
• The error indicates full discharge of a battery.
Set by
(When Set)
S
(Error)
drive No.(L)
2EH(.)
U
S
(Error)
1
APPENDICES
Corre-
Corre-
sponding
sponding
ACPU
CPU
D9
LCPU
QnU
LCPU
A
New
QnU
QCPU
LCPU
301