User manual

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User Manual DNP 3.0 Slave
ProSoft Technology, Inc. Page 27 of 86
December 1, 2009
To Address
0 to highest User Data Register Address
The destination for the copy is always within the User Data registers area. Take
care to specify a destination address that will not overwrite data that may be
required for other purposes.
Register Count
1 to 100
This parameter specifies the number of registers to copy.
Swap Code
No Change, Word Swap, Word and Byte Swap, Byte Swap
You may need to swap the order of the bytes in the registers during the copy
process in order to change the alignment of bytes between dissimilar protocols.
This parameter is helpful when dealing with floating-point or other multi-register
values, as there is no standard method of storage of these data types in slave
devices.
The following table defines the values and their associated operations:
Swap Code Description
No Swap No Change is made in the byte ordering (1234 = 1234)
Word Swap The words are swapped (1234=3412)
Word and
Byte Swap
The words are swapped then the bytes in each word are swapped (1234=4321)
Bytes The bytes in each word are swapped (1234=2143)