Prosoft-technology MVI56E-SIE Manual do Utilizador descarregar pdf (Página 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

NONE

SWAP WORDS

SWAP WORDS & BYTES

SWAP BYTES

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

NONE

No change is made in the byte ordering (1234 = 1234)

SWAP WORDS

The words are swapped (1234=3412)

SWAP WORDS & BYTES

The words are swapped, then the bytes in each word are swapped

(1234=4321)

SWAP BYTES

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.

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