
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
473
CIP Objects
Appendix A
The identifier structure contains coded information recording the source
(pertaining to filters), mode (asynchronous or synchronous), related tacho
source, and engineering units for the data. If the mode is indicated as being
synchronous, the SamplePeriodInSecs field contains the number of samples per
revolution.
Behavior
Through the Object-specific service 0x4C, the Normal CM Object gives access
to 'Live' Dynamic data. See the Data Manager Object for access to historical
data (Trend and Alarm). See the Advanced CM Data Object for access to
dynamically configurable analysis data (variable FFT lines, and so on) and the
Transient Data Manager Object for access to stored transient event data.
In general this object supports multi-user access, however, the live data option
is single user only. In such a case, error code 13 is returned to any subsequent
requestor [eLiveMeasurementInProgress] and that software must resubmit the
request.
Table 211 - Tacho (eTACHO)
Byte Offset
Within
Structure
Structure Member
Data
Type
Description
0
TimestampNanoSec
UDINT
Sub-second accuracy.
4
TimestampSec
UDINT
Seconds since 1970.
8
Reserved
REAL
12
Reserved
DWORD
16
Reserved
UDINT
20
ByteCount
UDINT
The size of the following array in bytes.
24
TimingArray
UDINT
The array of tacho time values (24 bit, micro-second
counter).
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Страница 10: ...10 Rockwell Automation Publication 1444 UM001D EN P June 2018 Table of Contents Notes...
Страница 12: ...12 Rockwell Automation Publication 1444 UM001D EN P June 2018 Preface Notes...
Страница 198: ...198 Rockwell Automation Publication 1444 UM001D EN P June 2018 Chapter 5 Configure the Tachometer Expansion Module Notes...
Страница 210: ...210 Rockwell Automation Publication 1444 UM001D EN P June 2018 Chapter 7 Configure Relays Notes...
Страница 230: ...230 Rockwell Automation Publication 1444 UM001D EN P June 2018 Chapter 8 Configure Alarms Notes...
Страница 240: ...240 Rockwell Automation Publication 1444 UM001D EN P June 2018 Chapter 9 Trend and Transient Capture Notes...
Страница 316: ...316 Rockwell Automation Publication 1444 UM001D EN P June 2018 Chapter 10 Operate the Module Notes...
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