
Rockwell Automation Publication 5069-UM004A-EN-P - April 2019
99
Input Module Features
Chapter 3
When subsequent short duration pulses are detected at the same input point,
the Latching configuration dictates what changes, if any, occur in the Logix
Designer project.
To acknowledge the last captured pulse, set the output tag of the last input
pulse as follows:
• Off to On transition - Set the O.Ptxx.TimestampOffOnNumberAck tag
= I.Ptxx.TimestampOffOnNumber tag.
• On to Off transition - Set the O.Ptxx.TimestampOnOffNumberAck
tag = I.Ptxx.TimestampOnOffNumber tag.
Once a pulse latch is acknowledged for an input point, the next pulse at that
point increments the corresponding I.Ptxx.TimestampOffOnNumber and
records the timestamp in I.Ptxx.TimestampOffOn.
You can change tag values in program logic while normal module operation
continues or through the Logix Designer application tag editor. For more
information about module tags, see Appendix B,
.
Latching Configuration
Input Transition Type
Where Pulse Is Captured
Change in Logix Designer Project
Disabled (default)
The following conditions disable Timestamp Latching:
• Enable Timestamp Latching field on the Module
Properties dialog box is clear
• C.Ptxx.TimestampLatchEn tag = 0.
Off to On
The I.Ptxx.TimestampOffOnNumber tag increments.
The new timestamp is recorded in the I.Ptxx.TimestampOffOn tag, overwriting the
previous timestamp.
On to Off
The I.Ptxx.TimestampOnOffNumber tag increments.
The new timestamp is recorded in the I.Ptxx.TimestampOnOff tag, overwriting the
previous timestamp.
Enabled
The following conditions enable Timestamp Latching:
• Enable Timestamp Latching field on the Module
Properties dialog box is checked.
• C.Ptxx.TimestampLatchEn tag = 1.
Off to On
The I.Ptxx.TimestampOffOnNumber and I.Ptxx.TimestampOffOn tags remain
latched until the last captured pulse is acknowledged.
In other words, the tag values remain the same until the last captured pulse is
acknowledged.
On to Off
The I.Ptxx.TimestampOnOffNumber and I.Ptxx.TimestampOnOff tags remain
latched until the last captured pulse is acknowledged.
In other words, the tag values remain the same until the last captured pulse is
acknowledged.
Содержание 5069-IA16
Страница 16: ...16 Rockwell Automation Publication 5069 UM004A EN P April 2019 Preface Notes ...
Страница 106: ...106 Rockwell Automation Publication 5069 UM004A EN P April 2019 Chapter 3 Input Module Features Notes ...
Страница 190: ...190 Rockwell Automation Publication 5069 UM004A EN P April 2019 Chapter 6 Configure a Standard Module Notes ...
Страница 230: ...230 Rockwell Automation Publication 5069 UM004A EN P April 2019 Appendix A TroubleshootYour Module Notes ...
Страница 272: ...272 Rockwell Automation Publication 5069 UM004A EN P April 2019 Appendix B ModuleTag Definitions Notes ...
Страница 290: ...290 Rockwell Automation Publication 5069 UM004A EN P April 2019 Appendix D Safety Data for Safety Modules Notes ...
Страница 294: ...294 Rockwell Automation Publication 5069 UM004A EN P April 2019 Index Notes ...
Страница 295: ......