13 Troubleshooting
13.2.4 System Register Configuration
13-14
* Yes: Can be set to value other than system default from the user program.
No: The system default cannot be changed from the user program.
Table 13.3 Ladder Program User Operation Error Status - 3
Error
Code
Error Contents
User
∗
System Default
Integer
Operation
0001H
Integer operation - underflow
Yes
−
32768
[
−
32768
]
0002H
Integer operation - overflow
Yes
32767
[
32767
]
0003H
Integer operation - division error
Yes
The A register remains the same.
0009H
Double-length integer operation -
underflow
Yes
−
2147483648
[
−
2147483648
]
000AH
Double-length integer operation -
overflow
Yes
2147483647
[
2147483647
]
000BH
Double-length integer operation -
division error
Yes
The A register remains the same.
010
H
Integer operation error within operation
error processing drawing (
= 1 to B)
No
Default indicated above.
Real
Number
Operation
0010H
Integer storage - non-numeric error
Yes
Store not executed. [00000]
0011H
Integer storage - underflow
Yes
Store not executed. [
−
32768]
0012H
Integer storage - overflow
Yes
Store not executed. [+32767]
0021H
Real number storage - underflow
Yes
Store not executed. [
−
1.0E+38]
0022H
Real number storage - overflow
Yes
Store not executed. [1.0E+38]
0023H
Real number operation - division-by-zero
error
Yes
Operation not executed.
The F register remains the same.
0030H
Real number operation - invalid operation
(non-numeric)
No
Operation not executed.
0031H
Real number operation - exponent
underflow
No
0.0
0032H
Real number operation - exponent
overflow
No
Maximum value
0033H
Real number operation - division error
(non-numeric 0/0)
No
Operation not executed.
0034H
Real number storage - exponent
underflow
No
Stores 0.0.
0035H
Real number operation - stack error
0040H
to
0059H
Real number operation error within a
standard system function
No
Interrupt operation and output = 0.0
0040H: SQRT
0041H: SIN
0042H: COS
0043H: TAN
0044H: ASIN
0045H: ACOS
0046H: ATAN
0047H: EXP
0048H: LN
0049H: LOG
004AH: DZA
004BH: DZB
004CH: LIM
004DH: PI
004EH: PD
004FH: PID
0050H: LAG
0051H: LLAG
0053H: FGN
0054H: IFGN
0054H: LAU
0055H: SLAU
0056H: REM
0057H: RCHK
0058H: BSRCH
0059H: SQRT
1000H or 2000H is added for an index error.