ProSoft Technology PLX3 Series User Manual page 26

Configuring Your Gateway
User Manual
The following illustration shows an example Data Map.
The following table describes the parameters for configuring the Data Map.
Parameter
From Address
To Address
Register Count
Swap Code
Delay Preset
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Description
Value
0 to highest This parameter specifies the beginning internal database
Status Data register address for the copy operation. This address can be
address any valid address in the User Data Area or the Status Data
Area of the gateway.
0 to 3999 This parameter specifies the beginning destination register
address for the copy operation. This address must always be
within the User Data registers area. A destination address
must be specified that will not overwrite data that has been
stored in memory by one of the communication protocols
running on the gateway.
1 to 100 This parameter specifies the number of registers to copy.
No Change The order of the bytes in the registers may need to be
Word Swap swapped during the copy process in order to change the
Word and Byte alignment of bytes between dissimilar protocols. This
Swap parameter is helpful when dealing with floating-point or other
Byte Swap multi-register values, as there is no standard method of
storage of these data types in slave devices.
No change: 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)
Byte Swap: The bytes in each word are swapped
(1234=2143)
This parameter sets an interval for each Data Map copy
operation. The value that is specified for the Delay Preset is
not a fixed amount of time. It is the number of firmware scans
that must transpire between copy operations.
PLX3x Series
Ethernet and Serial Gateways
ProSoft Technology, Inc.
May 26, 2016