400
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Appendix A
CIP Objects
Transient Data Mode
Not all bit combinations are valid; total number of buffers that are allocated
must be no more than 4.
Startup buffers are allocated first, to the lower buffers.
Source of Speed Data for Transient Data Acquisition
Any one of the following can be identified as the speed reference used in
transient data acquisition.
The data types consisting of multiple bytes are transferred in little-endian
format (least significant byte first).
Bits
Description
0
Disable (0) or enable (1) transient mode
1
Startup: Bit set for Fast Transient Data Collection Mode.
Default is Normal Transient Data Collection Mode (Sets of overall and Dynamic data)
2
Coast down: Bit set for Fast Transient Data Collection Mode.
Default is Normal Transient Data Collection Mode (Sets of overall and Dynamic data)
3…5
Number of buffers that are allocated to start up in Normal Mode (referred to by RU or SU).
Values 0…4, default 2.
6…8
Number of buffers that are allocated to coast down in Normal Mode (CD).
Values 0…4, default 2.
9
Buffer latch control
10
Use additional available buffers for the same (extended) transient event
11…15
Reserved for future functionality (fast transient capture using long time records)
Value
Description
1
Tacho/Speed 0
2
Tacho/Speed 1
3
Factored speed from Tacho 0
4
Factored speed from Tacho 1
Higher
Values
Reserved
Table 126 - Common Services
Service
Code
Implementation
Service Name
Description of Service
Class
Instance
0x0E
x
x
Get Attribute Single
Returns the contents of the specified attribute