Parameter read full, Plc block transfer emulation instruction data – Rockwell Automation 1203-CN1 ControlNet Communications Module 1203-CN1 User Manual

Page 123

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Publication 1203-5.13 – February, 2002

Supported Emulated Block Transfer Commands: Parameter Read Full

F-5

Parameter Read Full

Parameter Read Full provides all known attributes for the
parameters requested. This information includes the parameter’s
current value, descriptor, multiply and divide value, base value, offset
value, text string, group element reference, minimum value,
maximum value, default value, and unit text string.

PLC Block Transfer Emulation Instruction Data

PLC request instruction length: 3 words
Drive response instruction length: 23 words

Data

Word 3

PLC Decimal Value

768

Message Structure

Data

Word 4

Data

Word 5

PLC Request

Header Word 0

Header Word 1

Header Word 2

Parameter Value

Message Length

Descriptor

Multiply Value

Parameter Number

3

(See Drive List)

or Status Word

Data

Word 6

Data

Word 7

Divide Value

Base Value

Data

Word 8

Data

Word 9

Offset Value

Parameter

Char 2

Char 1

Data

Word 10

Char 4

Char 3

Data

Word 11

Char 6

Char 5

Data

Word 12

Char 8

Char 7

Data

Word 13

Char 10

Char 9

Data

Word 14

Char 12

Char 11

Data

Word 15

Char 14

Char 13

Data

Word 16

Char 16

Char 15

Text

Header

Word 0

Header

Word 1

Data

Word 2

Message Length

PLC Decimal Value

768 -- Message OK

-31999 -- Message Error

Parameter Number

23

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