Prosoft-technology MVI56E-DNPNET Manual do Utilizador descarregar pdf (Página 100)

Contents MVI56E-DNPNET ♦ ControlLogix Platform

User Manual DNPNET Ethernet Client/Server Communication Module

Page 100 of 140 ProSoft Technology, Inc.

February 13, 2015

Word Offset

in Block

Data Field(s)

Description

Sequence

Counter

This field is used to hold the sequence counter for each 9959

block transfer. This is used to synchronize and confirm receipt

of the block by the module.

(Begin Event #1)

Point_Number

This is the data point in the DNPNET analog input database

represented by the event.

Class_Override

Regardless of the Class defined for the given point number,

this will be the Class of the event. (1, 2, or 3)

5 to 6

Value

Value of the point. 16-bit integer, 32-bit integer, or 32-bit float

can be packed into this space

Year

Year of the event timestamp

Month

Month of the event timestamp

Day

Day of the event timestamp

Hour

Hour of the event timestamp

Minute

Minute of the event timestamp

Seconds

Seconds of the event timestamp

Milliseconds

Milliseconds of the event timestamp

Reserved

(Next 19 Events)

15 to 26

Ten words of data for Event #2

…

231 to 242

Ten words of data for Event #20

(End of Event

data)

243 to 247

Spare

Not Used

Up to 20 events can be passed from the ControlLogix processor to the module in each

block. To insure that the block reached the module and was processed, the module will

send a response read block 9959 to the ControlLogix processor.

Word Offset

in Block

Data Field(s)

Description

Reserved

Reserved(0)

Block ID

Block identification code for request from PLC by the module.

Event Count

Received

This field contains the number of events processed/received

by the module.

Sequence

Counter Received

Sequence counter Received for each block transfer, used to

synchronize and confirm receipt of the block by the module.

This field contains the sequence counter of the last successful

block 9959 received.

4 to 248

Spare

Not used

249

Block ID

Identification code for block set to 9959.

1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 139 140

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