Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx - Manual (Page 221)

7–75
Publication 1336 FORCE–5.13 –– September, 1998
The Trend Parameter Definition allows you to read the list of trend
parameter numbers from the database.
PLC Block Transfer Instruction Data
BTW instruction length: 3 words
BTR instruction length: 13 words
Header
Word 1 Header
Word 1
Header
Word 2 Header
Word 2
Header
Word 3
Trend Number
Message Structure
Header
Word 3
Trend Number
PLC Decimal Value
4102
PLC Decimal Value
4102 –– Message OK
–28666 –– Message Error
Message Length
3 Message Length
13
PLC Request –– Block Transfer Write
Drive Response –– Block Transfer Read
Data
Word 4
Data
Word 5
Data
Word 6
Post Samples
Trend Sample Size
Trend Status
Parameter Number
Parameter Number
Parameter Number
Data
Word 7
Data
Word 8
Data
Word 9
Mode
Sample Time Rate
Operator Data
Parameter Number
Parameter Number
Parameter Number
Data
Word 10
Data
Word 11
Data
Word 12
Sampling Input
Comparison B
Comparison A
Parameter Number
Parameter Number
Parameter Number
Data
Word 13
Trend Output
Parameter Number
Message Operation
You can use the Trend Parameter Definition function to read the list
of trend parameter numbers from the database. You can set up trends
using the Trend Setup Data File message or by direct access through
the parameter mechanism.
Trend File
Trend Parameter Definition