Prosoft-technology MVI71-DFNT Manual de usuario descargar pdf (Pagina 115)

MVI71-DFNT ♦ PLC 5 Reference

EtherNet/IP Client/Server Communication Module User Manual

ProSoft Technology, Inc. Page 115 of 175

February 3, 2011

5.11 General Command Structure

DF1 Master Port Command

Structure (File for each Master

Port)

Description

Communicati

on Module

Information

Enable/Type Word 0=Disabled, 1=Continuous, 2=Conditional and 999=Poll. The

conditional type only applies to the write functions.

Virtual Database Address This parameter defines the virtual database register to be

associated with the command.

Poll Interval Minimum time in tenths of a second to wait before polling with this

command.

Count Number of data values or registers to be considered by the

function.

Swap Type Code Swap type code for command: 0=None, 1=Swap words, 2=Swap

words & bytes and 3=swap bytes in each word.

Device

Information

Node Address Node address of unit to be reached on the data highway.

Function Code This parameter defines the module function code to be

associated with the command. Each function code requires a set

of parameters to construct the DF1 message.

Parameters Up to four parameter fields can follow the function code field to

define the element or data register to be considered by the

function.

Note that the Node Address field in the serial implementation has been expanded

to two fields: IP Address and Slot Number in the DFNT Ethernet implementation.

This is required for network support. The IP Address specifies the IP address of

the device to reach on the network. The Slot Number has specific meaning

determined by the processor. For ControlLogix processors, the Slot Number is

the location in the ControlLogix rack of the processor. For a four-slot rack, this

parameter would have a valid range of 0 to 3. For the PLC5 and SLC family of

processors, the Slot Number parameter is always set to -1. These processors do

not have a slot number in the path field as the Ethernet interface is resident on

the processor.

The following tables define the parameters required for each function.

1 2 ... 110 111 112 113 114 115 116 117 118 119 120 ... 174 175

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Prosoft-technology MVI71-DFNT Manual de usuario Pagina 115