Rockwell-automation 1203-CN1 ControlNet Communications Module 1203-CN1 Manual de usuario Pagina 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
Tex t
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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