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4-28 Micro PLC Programmer’s Guide – April 1994
GFK-0804B
Division (DIV)
The Division function divides one number by another, and places the result in two
consecutive registers.
R1 BR2 =R3 R4 R5
R1 B =R3 R4
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The numbers can be either constants or the contents of register locations.
When this function is programmed, only the first register of a pair is programmed; that
is, the first register of the pair where the result of the division will be placed, and the first
register of the number to be divided, (unless it is a constant). Although only the first
register of a pair is actually specified, it is important not to use the second register for
any other purpose in the program.
Examples:
Whole # Remainder
R1 R2 R3 R4 R5
00000 01000 / 00010 = 00100 00000 ( 100 plus no remainder)
00000 01000 / 00012 = 00083 00004 ( 83 plus 4 remainder)
00001 01000 / 00002 = 33268 00000 ( 66536 / 2 = 33268, no remainder)
00010 01000 / 01000 = 00656 00360 (( 655360+1000) / 1000) = 656 plus
remainder of 360)
00000 01000 / 03000 = 00000 01000 ( 1000 / 3000 = 0, remainder 1000)
10000 00000 / 00010 = 00000 00000 (number is too large to represent as
a whole number plus a remainder)
00000 01000 / 00000 = LAST RESULT (but C1023 turns on to indicate
that a divide by 0 was incorectly attempted.