Rockwell Automation Publication 1756-RM003N-EN-P - October 2011 275
Compute/Math Instructions (CPT, ADD, SUB, MUL, DIV, MOD, SQR, SQRT, NEG, ABS) Chapter 6
Divide (DIV)
The DIV instruction divides Source A by Source B and places the result in the
Destination.
Operands:
Relay Ladder
Structured Text
Use the divide sign ‘/’ as an operator in an expression. This expression divides
sourceA by sourceB and stores the result in dest.
See Structured Text Programming
for information on the syntax of expressions
within structured text.
Function Block
Operand Type Format Description
Source A SINT
INT
DINT
REAL
Immediate Tag Value of the dividend
A SINT or INT tag converts to a DINT value by sign-extension.
Source B SINT
INT
DINT
REAL
Immediate Tag Value of the divisor
A SINT or INT tag converts to a DINT value by sign-extension.
Destination SINT
INT
DINT
REAL
Tag Tag to store the result
Operand Type Format Description
DIV tag FBD_MATH structure DIV structure
dest := sourceA / sourceB;
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