05.91 11 Programming of Cycles
11.7 Data transfer: R parameter into system memory
Depending on the number of data words <Value 4>, the read operation is either serial or
parallel:
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<Value 4> BCD
1 One data word is read, dimension identifier <Value 5> meaningless.
2 Two data words are read in parallel. Dimension identifier <Value 5> meaningless.
3 Three data words are read in serial. Dimension identifier <Value> specifies how the BCD value is
to be read.
Definition of dimension identifier <Value 5>:
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<Value 5>
BCD
100 Value without decimal point
101 Value with decimal point
102 1 place after the decimal point
103 2 places after the decimal point
104 3 places after the decimal point
105 4 places after the decimal point
106 5 places after the decimal point
107 6 places after the decimal point
108 7 places after the decimal point
109 8 places after the decimal point
Example:
@4b1 K1 K2 K10 K1 K100 K2413 The BCD value of the defined PLC data
word is loaded via a constant.
@4b2 <Value 1> <Value 2> <Value 3> <Value>
The floating-point value is loaded in the defined data words of the PLC via a parameter,
pointer or constant. Two data words are always loaded in serial in the PLC. The PLC
number is defined by <Value 1>, the number of the DB or DX by <Value 2> and the
data value number by <Value 3>.
The NC value (8 valid digits) is represented in the PLC with only 6 valid digits.
© Siemens AG 1991 All Rights Reserved 6ZB5 410-0HD02 11–35
SINUMERIK 880, (PG)
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