Omron C40K 用户手册
Glossary
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Wired Slave Rack
A Slave Rack connected through a Wired Remote I/O Slave Unit.
word
A unit of storage in memory that consists of 16 bits. All data areas consists of
words. Some data areas can be accessed by words; others, by either words
or bits.
words. Some data areas can be accessed by words; others, by either words
or bits.
word address
The location in memory where a word of data is stored. A word address must
specify (sometimes by default) the data area and the number of the word that
is being addressed.
specify (sometimes by default) the data area and the number of the word that
is being addressed.
work bit
A bit in a work word.
work word
A word that can be used for data calculation or other manipulation in pro-
gramming, i.e., a ‘work space’ in memory. A large portion of the IR area is
always reserved for work words. Parts of other areas not required for special
purposes may also be used as work words, e.g., I/O words not allocated to
I/O Units.
gramming, i.e., a ‘work space’ in memory. A large portion of the IR area is
always reserved for work words. Parts of other areas not required for special
purposes may also be used as work words, e.g., I/O words not allocated to
I/O Units.