Mitsubishi Electric MELSEC-Q/L Programming Manual page 194

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Table of Contents

Operation error

• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.

Error details

The specified device value is -0.

The specified device value is not within the following range:

 | Specified device value | < 2

The specified device value is -0, unnormalized number, nonnumeric, and .

*2 There are CPU modules that will not result in an operation error if -0 is specified. For details, refer to Page 87 Using single/double-

precision real number data.

Program example

• The following program compares 32-bit floating decimal point real number data at D0 and D1 to 32-bit floating decimal point

real number data at D3 and D4.

[Ladder Mode]

• The following program compares the floating decimal point real number 1.23 to the 32-bit floating decimal point real number

data at D3 and D4.

[Ladder Mode]

• The following program compares 32-bit floating decimal point real number data at D0 and D1 to 32-bit floating decimal point

real number data at D3 and D4.

[Ladder Mode]

• The following program compares the 32-bit floating decimal point data at D0 and D1 to the floating decimal point real

number 1.23.

[Ladder Mode]

6 BASIC INSTRUCTIONS

6.1 Comparison Operation Instructions