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
32767ï¼»32767ï¼½
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
2147483647ï¼»2147483647ï¼½
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.