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Data Blocks
Block header
Block body
Maximum length
2 - 36
The block header occupies five words in the memory and contains
the following:
• • the block identifier
• • the programmer identifier
• • the block type and the block number
• • the library number
• • the block length (including the length of the block header).
The block body contains the data words with which the user program
works. These data words are in ascending order in the block body,
starting with data word DW 0. Each data word occupies one word
(16 bits) in the memory.
A data block can occupy a total of maximum 32 767 words (including
header) in the CPU memory. When you use your programmer to enter
and transfer data blocks, remember the size of your CPU memory!
CPU 948 Programming Guide
C79000-G8576-C848-04
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