Prosoft-technology MVI56-PDPMV1 Manual de usuario descargar pdf (Pagina 38)

Start Here MVI56-PDPMV1 ♦ ControlLogix Platform

User Manual PROFIBUS DPV1 Master

Page 38 of 255 ProSoft Technology, Inc.

March 22, 2011

1.7.2 FLEX Sample Add-On Instruction Import Procedure

Note: This section applies only if the MVI56-PDPMV1 firmware version is 1.21 (or later) AND

configured in FLEX mode (U

EGACY

ODE

= N

)

Before You Begin

The following file is required before you start this procedure. Copy the file from

the ProSoft Solutions CD-ROM, or download it from

www.prosoft-technology.com.

File Name Description

PS56PDPMV1_FLEX_v*.L5X

(where * is the current sample

program version number)

L5X file containing Add-On Instruction, user-defined data types,

controller tags, and ladder logic required to set up the MVI56-

PDPMV1 module

Flexible Connection I/O Length Overview

This section describes the flexible backplane connection I/O concept.

The connection parameters may assume values within the following ranges:

Minimum Size

(16-bit)

Maximum Size (16-

bit)

Maximum PROFIBUS data count per

block (16-bit)

Assembly

Instance

Input 12 250 [input size - 8] 1

Output 5 248 [bp output size - 5] 2

Configuration 0 0 not used 4

For applications where the module will be used in the local rack (the same rack

as the ControlLogix processor), use the maximum backplane I/O sizes.

For applications where the module will be used in a remote rack, use the

backplane I/O sizes that will provide optimal network performance (PROFIBUS

and ControlNet or EtherNet/IP).

The configured sizes will have an impact on the number of blocks required to

transfer the entire PROFIBUS I/O database between the ControlLogix processor

and the MVI56-PDPMV1 module. Reducing the number of words per backplane

block may improve the ControlNet or EtherNet/IP network performance.

However, doing so will increase the number of backplane block transfers and

have a negative effect on overall backplane data transfer efficiency.

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