January 2012 8.4 Operands 1519
Byte
Word
Double word
B (byte)
W (word)
D (double word)
B0 to B9999 (8 bits)
B0 to B255 are free; depending on the definition in the
*.CFG file of the PLC compiler, the defined range is deleted
only after entering the code number 531210, not during
reset (nonvolatile range). If no range is defined in the *.CFG
file, B0 to B127 is the nonvolatile range.
B256 to B2047 are reserved for the NC-PLC interface if you
are using the old TNC-API. They are freely usable if you are
using the new symbolic API.
B2048 to B9999 are free; they are deleted during reset.
Constant K –2 147 483 647 to +2 147 483 647
String S S0 to S99
Operand Abbreviation Address range
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