
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
405
CIP Objects
Appendix A
See
for details on how to calculate the TWF
from the read data.
Table 133 - Waveform (eTWF_TDx)
Byte
Offset
Within
Structure
Structure Member
Data
Type
Description
0
TimestampNanoSec
UDINT
Subsecond accuracy.
4
TimestampSec
UDINT
Seconds since 1970.
8
SamplePeriodInSecs
REAL
Time period between samples or speed and number of samples
per revolution
12
Identifier
DWORD
Data source, mode, tacho source, and measurement units.
16
RelativeTime
UDINT
A 24-bit (micro-second) counter-value for finely aligning data.
See
Reading Continuous Time Waveforms on page 329
for
information on using this parameter.
20
ByteCount
UDINT
The size of the following array in bytes.
24
SampleArray
REAL
The array of waveform data values (samples).
Table 134 - Tacho (eTACHO_TDx)
Byte
Offset
Within
Structure
Structure Member
Data Type
Description
0
TimestampNanoSec
UDINT
Subsecond 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).
Содержание 1444-AOFX00-04RB
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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