90 Rockwell Automation Publication 5069-UM002A-EN-P - January 2019
Chapter 3 Start to Use the Controller
Choose the Controller
Operation Mode
Use Table 6 as a reference when determining the controller operation mode.
Table 6 - Controller Operation Mode Considerations
Mode
(1)
Available Controller Modes In This Mode You Can: In This Mode You Cannot:
ATTENTION:
RUN Run mode—The controller is actively
controlling the process/machine. Projects
cannot be edited in the Logix Designer
application when in Run mode.
• Turn outputs to the state commanded by
the logic of the project.
• Execute (scan) tasks
• Send messages
• Send and receive data in response to a
message from another controller
• Produce and consume tags
• Initiate a soft or hard restart of the COS.
(2)
• Turn outputs to their configured state
for Program mode
• Change the mode of the controller via
the Logix Designer application
• Download a project
• Schedule a ControlNet® network
• While online, edit the project
Run mode is used
only when all
conditions are safe.
REM Remote Run mode—This mode is
identical to Run mode except you can edit
the project online, and change the
controller mode through the Logix
Designer application.
• Turn outputs to the state commanded by
the logic of the project.
• Execute (scan) tasks
• Change the mode of the controller via the
Logix Designer application
• While online, edit the project
• Send messages
• Send and receive data in response to a
message from another controller
• Produce and consume tags
• Initiate a soft or hard restart of the COS.
(2)
• Turn outputs to their configured state
for Program mode
• Download a project
• Schedule a ControlNet network
You are able to
modify a project file
online in Remote
Run mode.
Be sure to control
outputs with care to
avoid injury to
personnel and
damage to
equipment.
Remote Program mode—This mode
functions like Program mode, except you
can change the controller mode through
the Logix Designer application.
• Turn outputs to their configured state for
Program mode
• Change the mode of the controller via the
Logix Designer application
• Download a project
• Schedule a ControlNet network
• While online, edit the project
• Send and receive data in response to a
message from another controller
• Produce and consume tags
• Initiate a soft or hard restart of the COS.
(2)
• Restart the COS in UTIL mode.
(2)
• Turn outputs to the state commanded
by the logic of the project.
• Execute (scan) tasks
Outputs are
commanded to their
Program mode state,
which can cause a
dangerous situation.
Remote Test mode—This controller
mode executes code, but I/O is not
controlled. You can edit the project online,
and change the controller mode through
the Logix Designer application.
Output modules are commanded to their
Program mode state (on, off, or hold).
• Turn outputs to their configured state for
Program mode
• Execute (scan) tasks
• Change the mode of the controller via the
Logix Designer application
• While online, edit the project
• Send messages
• Send and receive data in response to a
message from another controller
• Produce and consume tags
• Initiate a soft or hard restart of the COS.
(2)
• Turn outputs to the state commanded
by the logic of the project.
• Download a project
• Schedule a ControlNet network
• Send messages
PROG Program mode—This controller mode
does not execute code or control I/O, but
editing operations are available.
Output modules are commanded to their
Program mode state (On, Off, or Hold).
In this position, controller modes cannot
be changed through the Logix Designer
application.
• Turn outputs to their configured state for
Program mode
• Download a project
• Schedule a ControlNet network
• While online, edit the project
• Send and receive data in response to a
message from another controller
• Produce and consume tags
• Initiate a soft or hard restart of the COS.
(2)
• Restart the COS in UTIL mode.
(2)
• Turn outputs to the state commanded
by the logic of the project.
• Execute (scan) tasks
• Change the mode of the controller via
the Logix Designer application
• Send messages
Do not use Program
mode as an
emergency stop (E-
stop). Program mode
is not a safety device.
Outputs are
commanded to their
Program mode state,
which can cause a
dangerous situation.
(1) If you move the mode switch from RUN to REM, the controller changes to Remote Run mode. If you move the mode switch from PROG to REM, the controller changes to Remote Program mode. You
cannot choose Remote Test mode by the mode switch alone, it is only available via the Logix Designer application.
(2) For more information on how to use the reset button to initiate state changes on the COS, see
Use the Reset Button with the COS on page 218.
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