Mitsubishi PLC division instruction elements and use - Database & Sql Blog Articles

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The mnemonic, instruction code, operand, and program steps of the instruction are shown in Table 1.

Table 1 Elements of the division instruction

The DIV division instruction divides the binary number in the specified source element, [S1] is the dividend, [S2] is the divisor, the quotient is sent to the specified target element [D], and the remainder is sent to the next [D]. Target component. The instructions for using the DIV division instruction are shown in Figure 1. It is divided into 16 bits and 32

Figure 1 Description of the use of the division instructions

When it is for 16-bit operation. When the execution condition X0 is OFF→ON, [D0]/[D2]→[D4]. When [D0]=19, [D2]=3, [D4]=6, [D5]=1. V and Z cannot be used in [D].

When it is a 32-bit operation. When the execution condition X0 is turned from OFF to ON, [D1, D0]/[D3, D2]. The quotient is in [D5, D4] and the remainder is in [D7, D6]. V and Z cannot be used in [D].

When the quotient is 0, there is an operation error and the instruction is not executed. If [D] specifies a bit component, the remainder is not obtained. The highest bit of the quotient and remainder is the sign bit. One of the dividends or remainders is negative and the quotient is negative; when the dividend is negative, the remainder is negative.