Prosoft-technology MVI71-DFNT Manual de usuario descargar pdf (Pagina 124)

Reference MVI71-DFNT ♦ PLC 5

User Manual EtherNet/IP Client/Server Communication Module

Page 124 of 175 ProSoft Technology, Inc.

February 3, 2011

5.11.12 Function Code #501 - Protected Typed Logical Read (Two

Address Fields)

Column Parameter Description Parameter

1 Enable/Type Word 0=Disabled and 1=Continuous.

2 Virtual Database Address This parameter defines the database address of the first

data point to be associated with the command.

3 Poll Interval Minimum number of seconds to wait before polling with

this command.

4 Count Number of data word values to be considered by the

function.

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

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

Node Address

Address of unit to reach on the data highway.

7 Slot Number Processor slot number in Control/CompactLogix rack.

Use -1 for PLC5 & SLC processors.

Function Code = 501

Logical Read Command

9 File Type SLC file type letter as used in file name string. Valid

values for the system are N, S, F, A, ….

File Number

SLC file number to be associated with the command.

11 Element Number The parameter defines the element in the file where

write operation will start.

Not Used

This field is not used by the command. Values entered

in this column will be ignored.

This function reads one or more words of data from a PLC data table.

1 2 ... 119 120 121 122 123 124 125 126 127 128 129 ... 174 175

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Prosoft-technology MVI71-DFNT Manual de usuario Pagina 124