回复:数值运算时计数错误时PLC如何处理?

Amcorben

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注册时间:2003-06-06

普通 普通 如何晋级?

发布于 2003-06-06 15:43:20

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The Square Root (SQRT) instruction takes the square root of a 32-bit real number (IN) and produces a 32-bit real number, Error Conditions that Set ENO = 0:
0006 Indirect address
SM1.1 Overflow
Special Memory bits:
SM1.0 Zero result
SM1.1 Overflow
SM1.2 Negative resultSM1.1 is used to indicate overflow errors and illegal values. If SM1.1 is set, then the status of SM1.0 and SM1.2 is not valid and the original input operands are not altered. If SM1.1 is not set, then the math operation has completed with a valid result and SM1.0 and SM1.2 contain valid status.
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