Multiply Double Integer And Divide Double Integer - Siemens SIMATIC S7-200 System Manual

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SIMATIC Instructions

Multiply Double Integer and Divide Double Integer

If SM1.3 (divide by zero) is set during a divide operation, then the other math

status bits are left unchanged and the original input operands are not altered.

Otherwise, all supported math status bits contain valid status upon completion of

the math operation.

Inputs/Outputs

VD, ID, QD, MD, SMD, SD, LD, HC, AC, Constant, *VD, *AC, *LD

VD, ID, QD, MD, SMD, SD, LD, AC, *VD, *LD, *AC

The Multiply Double Integer instruction multiplies two

32-bit integers and produces a 32-bit product.

The Divide Double Integer instruction divides two 32-bit

integers and produces a 32-bit quotient. No remainder is

In LAD and FBD: IN1 IN2 = OUT

Error conditions that set ENO = 0: SM1.1 (overflow),

SM1.3 (divide-by-zero), SM4.3 (run-time), 0006 (indirect

These instructions affect the following Special Memory

bits: SM1.0 (zero); SM1.1 (overflow); SM1.2 (negative);

SM1.3 (divide-by-zero)

If SM1.1 (overflow) is set during a multiply or divide

operation, the output is not written and all other math

status bits are set to zero.

IN1 / IN2 = OUT

IN1 OUT = OUT

OUT / IN1 = OUT

S7-200 Programmable Controller System Manual

A5E00066097-02

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