WI-GTWY-9-xxx Wireless Gateway V1.18
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Three Fieldbus Mappings are illustrated in the example above. Note that “Word Address Mode”
is selected, meaning that the Fieldbus Interface IN and OUT Areas will be treated as word-
addressed arrays by configuration software. The parameters for each fieldbus mapping were setup
using the mapping configuration screen as described above.
The first Fieldbus Mapping is a “Write WORD” mapping, writing I/O Registers 10 – 15 from the
Radio Interface to word-locations 1 – 5 in the Fieldbus IN Area. Because the
transfer mode
is
“word” complete 16-bit registers are transferred.
The second mapping is a “Read BIT” mapping, reading 12
bits
from Fieldbus OUT Area
word-
location
1(word address mode is selected) to I/O Registers 30 – 41. Remember that for such a
