Rockwell Automation 1772-LS_LSP,D17726.8.6 PROG/OPER MANUAL-MINI PLC-2/05 - Manual (Page 95)

Math Instructions
Chapter 10
10Ć7
Conditioning Instructions
The conditioning instructions (operand B) may require up to four data table
words (Figure 10.2). We use Get instructions to enter data for operand B that
can contain an:
addend
subtrahend
multiplier
divisor
root
conversion word
Operand B has the format xxx xxx.xxx xxx. Enter it from the keyboard of the
1770-T3 industrial terminal or through ladder diagram instructions. The
number you enter has a fixed decimal point. To include the range of numbers
between 999 999.999 999 to 000 000.000 000 requires 12 bits from each of the
four data words.
To enter the number MLK takes only one get or one data table word.
G XXX MLK . XXX XXX
+\ - MLK
To enter the number MLK JHG takes two gets or two data words.
G G MLK JHG . XXX XXX
+\ - MLK JHG
To enter the number MLK JHG.FED takes three gets or three data table words.
G G G MLK JHG . FED XXX
+\ - MLK JHG FED
To enter the number MLK JHG.FED CBA takes four gets or data table words.
G G G G MLK JHG . FED CBA
+\ - MLK JHG FED CBA
Access an expanded math function by pressing [SHIFT][EAF] or
[SHIFT][SCT]. The EAF instruction is an output instruction and must be
preceded by the gets of operand B. This operand may be preconditioned but
nothing can be programmed between the gets and the EAF instruction. Should
you program five gets, the last four gets are the only ones to be processed. The
four gets need not have consecutive addresses. They can have any address
except 000-007 and 100-107 in the processor work area.