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ProSoft Technology MVI71-DFNT User Manual

Page 36

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Installing and Configuring the Module

MVI71-DFNT ♦ PLC 5

User Manual

EtherNet/IP Client/Server Communication Module

Page 36 of 175

ProSoft Technology, Inc.

February 3, 2011

The following table describes each parameter

Parameter

Range

Description

Enable

0, 1, 2

This field defines whether the command is to be executed and under what

conditions.

Value Description
0

The command is disabled and will not be executed in the normal

polling sequence.

1

The command is executed each scan of the command list if the

Poll Interval Time is set to zero. If the Poll Interval time is set, the

command is executed when the interval timer expires.

2

The command executes only if the internal data associated with

the command changes. This value is valid for write commands

only.

Internal

Address

0 to 3999

This field specifies the database address in the module's internal database to

be associated with the command. If the command is a read function, the data

received in the response message is placed at the specified location. If the

command is write function, data used in the command is sourced from the

specified data area.

Poll Delay

0 to 1000

This parameter specifies the minimum interval to execute continuous

commands (Enable code of 1). The parameter is entered in 1/10th of a

second. Therefore, if a value of 100 is entered for a command, the command

executes no more frequently than every 10 seconds.

Count

Command dependent. This parameter specifies the number of registers or digital points to be

associated with the command. See Command Function Codes (page 34) for

information

Swap Code

0, 1, 2, 3

This parameter defines if the data received from the Server is to be ordered

differently than that received from the Server device. 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 Server devices. This

parameter can be set to order the register data received in an order useful by

other applications. The following table defines the values and their associated

operations:

Swap Code Description
0

None - No Change is made in the byte ordering (1234 =

1234)

1

Words - The words are swapped (1234=3412)

2

Words & Bytes - The words are swapped then the bytes in

each word are swapped (1234=4321)

3

Bytes - The bytes in each word are swapped (1234=2143)

The words should be swapped only when using an even number of words.

Node IP

Address

xxx.xxx.xxx.xxx

The IP address of the device being addressed by the command.

Slot

When addressing a ControlLogix processor, the slot number corresponds to

the slot in the rack containing the controller being addressed. In the

ControlLogix platform, the controller can be placed in any slot and the rack

may contain multiple processors. This parameter uniquely selects a controller

in the rack.
Use a value of -1 when interfacing to an SLC 5/05 or a
PLC5. These devices do not have a slot number.