Rockwell-automation 1336T ControlNet Frn1.02 Rev 1.5 User Manual Page 95

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4–53Using Unscheduled Messaging
Publication 1336 FORCE–5.18 ––March, 1999
The Run Time Accumulator Data Read message provides the drive
with the accumulated time for running services. This information is
in hours and is read only. This function is typically used as a
maintenance feature.
PLC Block Transfer Instruction Data
PLC Message Write instruction length: 3 words
PLC Message Read instruction length: 4 words
Header
Word 1
Header
Word 1
Header
Word 2
Header
Word 2
Data
Word 3
0
Message Structure
Header
Word 3
0
PLC Decimal Value
2817
PLC Decimal Value
2817 –– Message OK
-29951 –– Message Error
Message Length
3
Data
Word 4
Accumulated Value in
Hours
0
PLC Request –– PLC Message Write
Drive Response –– PLC Message Read
Message Operation
The Run Time Accumulator Data Read through PMR word 4,
provides the running service time in hours. As a maintenance feature,
you can use this information to help define a service schedule for the
drive.
You can clear the accumulated time through a Clear Run Time
Accumulator request. Information can then provide the accumulated
run time between each scheduled service.
Run Time Accumulator
Run Time Accumulator Data
Read
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