Rockwell Automation 1336T Function Block Prog. Manual, Series A/B - Manual (Page 126)

5–10 Block Transfer Services
1336 FORCE — 5.9 August 1995
The Read Task Status message requests the current status of the
function block program in RAM.
PLC Block Transfer Instruction Data
BTW Instruction Length: 3 Words
BTR Instruction Length: 4 Words
Header
Word 1
PLC Decimal Value
3844
0
Message Structure
Header
Word 2
Header
Word 3
PLC Request –– Block Transfer Write
Header Word 1
Header Word 2
Header Word 3
Run Mode
Task Status
Download In Progress
Compilation In Progress
Link Processing
Task Status Value
0
1
2
3
4
255
Recall in Progress
Faulted Mode
PLC Decimal Value
3844 –– Message OK
0
–28924 –– Message Error
0
0
Drive Response –– Block Transfer Read
Data
Word 4
Dec
Message Operation
The Read Task Status message returns a code value that indicates the
status of the current function block program.
Application Status
Services:
Read Task Status