Mitsubishi MELSEC Q Series Programming Manual page 211

Operation Error
(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and
an error code is stored into SD0.
• The value of the specified device is not in the following range:
-1022
0,2
• The value of the designated device is
Program Example
(1) The following program compares 64-bit floating decimal point real number data at D0 to D3
with 64-bit floating decimal point real number data at D4 to D7.
[Ladder Mode]
(2) The following program compares the floating decimal point real number 1.23 with the 64-bit
floating decimal point real number data at D4 to D7.
[Ladder Mode]
(3) The following program compares 64-bit floating decimal point real number data at D0 to D3
with 64-bit floating decimal point real number data at D4 to D7.
[Ladder Mode]
(4) The following program compares the 64-bit floating decimal point data at D0 to D3 with the
floating decimal point real number 1.23.
[Ladder Mode]
| value of specified device | < 2
ED=,ED<>,ED>,ED<=,ED<,ED>=
1024
0.
[List Mode]
Instruction Device
Step
[List Mode]
Step Instruction
[List Mode]
Instruction
Step
[List Mode]
Step Instruction
(Error code: 4140)
(Error code: 4140)
Device
Device
Device
6-9
1
2
3
4
4
6
7
8