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Communications, Job allocation by the controllogix controller, Header data – ProSoft Technology MVI56-S3964R User Manual

Page 58

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MVI56-S3964RT ♦ TControlLogix PlatformT

Reference

TSiemens 3964R ProtocolT

Page 58 of 78

ProSoft Technology, Inc.

Receive Data from CP (Block 5)

Offset Data

Length

0 910X

1

1 Reserved

1

2

Data Block (5)

1

3 Data

30

5.2.4 Communications

Job Allocation by the ControlLogix Controller

This section describes the different types of jobs and the relevant parameters to
be entered. For a better understanding a printout of the sample ladder file is
recommended.

Every job that is transferred to or from the MVI56-S3964R consists of defined
header data and user data.

The Job structure in general:

Word: High

Byte:

Low

Byte:

0 Header

data

.. ..
9 Header

data

10 User

data

.. ..
137 User

data

Header Data

The header data consists of 10 words with a job identifier and parameter data.

The header data is to be entered either in the file HEADER_P1 to send to port 1
or the file HEADER_P2 to send to port 2.

The header in general:

Word: High

Byte:

Low

Byte:

0

Job identifier (hex)

1

00

Data Block (DB)

2

00

Data Word (DW)

3

Number of data words/data bytes

4

Coordination byte 9

Coordination byte 10

5 00

Data

Type

6 00

00

7 00

00

8 00

00

9 00

00

The meaning of the entries and possible values are described below.

April 17, 2008

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