- Studio 5000 Logix Designer
- Tasks, programs, and routines
- Add-On Instructions
- Controller Organizer
- Logical Organizer
- Alarms
- Tag-based alarms
- Tag Editor and Data Monitor
- Configure settings for Tag Editor and Data Monitor
- Equipment phases
- Equipment Sequences
- Equipment Sequence Diagrams
- Ladder Editor
- Structured Text Editor
- Sequential Function Chart Editor
- Define the steps of an SFC process
- PlantPAx instruction properties
- Controller Properties
- Editing Controller Properties
- Controller Security
- Source Protection
- License Source Protection for Routines and Add-On Instructions
- Module Information
- 1756 ControlLogix I/O Modules
- Instruction Set
Timer and Counter Instructions
Timers and counters control operations based on time or the number of events.
Available Instructions
Ladder Diagram
Function Block and Structured Text
If you want to | Use this instruction |
time how long a timer is enabled | TON |
time how long a timer is disabled | TOF |
accumulate time | RTO |
time how long a timer is enabled with built-in reset in function block | TONR |
time how long a timer is disabled with built-in reset in function block | TOFR |
accumulate time with built-in reset in function block | RTOR |
count up | CTU |
count down | CTD |
count up and count down in function block | CTUD |
reset a timer or counter | RES |
The time base is 1 msec for all timers. For example, a 2 second timer’s .PRE value should be 2000.
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