ProSoft Technology MVI56E-SIE - Manual (Page 64)

Configuring the MVI56E-SIE Module MVI56E-SIE ♦ ControlLogix Platform
User Manual Client Communication Module
Page 64 of 168 ProSoft Technology, Inc.
September 6, 2012
Swap Code
N ONE
S WAP W ORDS
S WAP W ORDS & B YTES
S WAP B YTES
This parameter specifies if and how the order of bytes in data received or sent is
to be rearranged. This option exists to allow for the fact that different
manufacturers store and transmit multi-byte data in different combinations. This
parameter is helpful when dealing with floating-point or other multi-byte values,
as there is no one standard method of storing these data types. This parameter
can be set to rearrange the byte order of data received or sent into an order more
useful or convenient for other applications. The following table defines the valid
Swap Code values and the effect they have on the byte-order of the data.
Swap Code Description
N ONE
No change is made in the byte ordering (1234 = 1234)
S WAP W ORDS
The words are swapped (1234=3412)
S WAP W ORDS & B YTES The words are swapped, then the bytes in each word are swapped
(1234=4321)
S WAP B YTES
The bytes in each word are swapped (1234=2143)
These swap operations affect 4-byte (or 2-word) groups of data. Therefore, data
swapping using these Swap Codes should be done only when using an even
number of words, such as when 32-bit integer or floating-point data is involved.
Node IP Address
xxx.xxx.xxx.xxx
This parameter specifies the IP address of the device being addressed by the
command.
Rack
Rack number of the S7-300, S7-400 or S7-1200 CPU.
Rack number is not used for the S7-200 CPU.
Slot
Slot number of the S7-300, S7-400 or S7-1200 CPU.
Slot number is not used for the S7-200 CPU.
TSAP
TSAP of the S7-200 CPU. This can be found in the Siemens STEP 7 MicroWIN
software.
TSAP is not used for the S7-300, S7-400 and S7-1200.