Run time accumulator, Plc block transfer instruction data, Message operation – Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 User Manual
Page 97: Example, Clear run time accumulator
4–55
Using Unscheduled Messaging
Publication 1336 FORCE–5.18 ––March, 1999
The Clear Run Time Accumulator message provides a way of
clearing the run time accumulator data stored in the drive.
PLC Block Transfer Instruction Data
PLC Message Write instruction length:
3 words
PLC Message Read instruction length:
3 words
Header
Word 1
Header
Word 1
Header
Word 2
Header
Word 2
Header
Word 3
0
Message Structure
Message Length
3
Header
Word 3
0
PLC Decimal Value
-29950
PLC Decimal Value
2818 –– Message OK
-29950 –– Message Error
Message Length
3
PLC Request –– PLC Message Write
Drive Response –– PLC Message Read
Message Operation
The Clear Run Time Accumulator defines a value of -29950 in the
PMW. Word 2 can clear the accumulated run time stored in the
drive. This allows you to monitor an accumulated time based on a
specific event.
Example
This function was requested to clear the accumulated run time in the
drive since the last scheduled maintenance downtime. In this
example, the PMW requested a clear with a value of -29950 in word
2. The PMR response indicated a successful clear by returning a
value of 2818 in word 20 of the PMR header message.
1
0
N10:10
2
3
4
5
6
7
8
9
N10:90
PLC MSG
Write File
PLC MSG
Read File
Data Format
0
0
3
3
-29950
2818
Run Time Accumulator
Clear Run Time Accumulator