Rockwell Automation 1336T Function Block Prog. Manual, Series A/B - Manual (Page 134)

5–18 Block Transfer Services
1336 FORCE — 5.9 August 1995
The Maximum Number of I/O Nodes Allowed per Application message
allows you to determine the maximum number of I/O nodes that you
can have in each application.
PLC Block Transfer Instruction Data
BTW Instruction Length: 3 Words
BTR Instruction Length: 4 Words
0
Header
Word 1 Header
Word 1
–32768
PLC Decimal Value
799
–32768
Message Structure
Header
Word 2
Data
Word 3
Header
Word 2
Header
Word 3
Data
Word 4
0
PLC Request –– Block Transfer Write
Drive Response –– Block Transfer Read
3840
Dec
3840 –– Message OK
–28928 –– Message Error
Message Operation
This message returns the maximum number of I/O nodes that you
can have in each application. Currently, this request always returns
799.
Example
In this example, the drive returns 799 for the maximum number of
available I/O nodes per application.
1 0
N10:10
2 3 4 5 6 7 8 9
N10:90
BTW
Data File
BTR
Data File
Data Format
–32768
–32768 799
0
0
3840
3840
Program Limits
Information:
Maximum Number of I/O Nodes
Allowed per Application