Mitsubishi Electric MELSEC-Q/L Programming Manual page 584

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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.

For MIDR instruction

Error details

The value of (S2) exceeds the number of characters specified by (S1).

The amount of (S2) and (S2) +1 exceeds the number of characters of (S1).

The (S2)+1 number of characters from position (D) exceeds the (D) device

The (S2)+0 value is 0.

The values of (S2)+1 are those other than the effective values (-1, 0, 1 or

There is no NULL code "00H" within the range of the corresponding devices

starting from the device number specified by (S1).

For MIDW instruction

Error details

The value of (S2) exceeds the number of characters specified by (D).

The amount of (S2) and (S2) +1 exceeds the number of characters of (S1).

The (S2)+1 value exceeds the number of characters for (S1).

The (S2)+0 value is 0.

The values of (S2)+1 are those other than the effective values (-1, 0, 1 or

There is no NULL code "00H" within the range of the corresponding devices

starting from the device number specified by (S1).

7 APPLICATION INSTRUCTIONS

7.11 Character String Processing Instructions