Mitsubishi MELSEC Q Series - Page 665

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EXP(P)
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7.12 Special function instructions 7.12.21 Exponent operation on floating-point data (Single precision) (EXP(P))
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.
• Operation results are outside the range shown below: (Error code: 4100)
2
-126
| operation result | 2
128
(For a High Performance model QCPU)
2
-126
| operation result | 2
128
(For a Basic model QCPU/Process CPU/Redundant CPU)
• The value of the specified device is 0.
*3
(For the Basic model QCPU, High Performance model QCPU, Process CPU, Redundant
CPU) (Error code: 4100)
*3: There are CPU modules that will not result in an operation error if 0 is specified. For details, refer to 3.2.4.
• The result exceeds the following range (Operation results in an overflow)
(For the Universal model QCPU, LCPU)
2
128
| Operation result | (Error code: 4141)
• The value of the specified device is 0, unnormalized number, nonnumeric, and ± .
(For the Universal model QCPU, LCPU) (Error code: 4140)