Triconex Trident - MP System Mode Indicators

Main Processor Indicators 171
Chapter 5 Fault and Alarm Indicators
MP System Mode Indicators
The MP system mode indicators identify the current operating state of the
controller. (Operational modes are set in TriStation 1131. For more information,
see the TriStation 1131 Developer’s Guide.)
Remote Run Program Halt Description
Green
steady
Green
steady
Yellow
steady
No
light
Normal operation with write capability.
Allows writes to program variables by TriStation, Modbus
master, and external hosts.
Allows control of the controller from TriStation, including
Download All and Download Change.
Green
steady
Green
steady
No
light
No
light
Normal operation with read-write capability.
Allows writes to program variables by Modbus masters and
external hosts. (Download All and Download Change by
TriStation are not allowed.)
No
light
Green
steady
No
light
No
light
Normal operation with read-only capability.
MPs execute the previously loaded application. Attempts to
modify program variables by Modbus masters and external
hosts are rejected.
No
light
No
light
Yellow
steady
Yellow
steady
Application loading and checkout is enabled.
Allows control of the controller from the TriStation
application, including Download All and Download
Change. Application has also been stopped.
Green
slow
blinking
Green
slow
blinking
Yellow
slow
blinking
Yellow
slow
blinking
Indicators change every few seconds; module is in its
power-up state.
Green
fast
blinking
Green
fast
blinking
Yellow
fast
blinking
Yellow
fast
blinking
Module is ready to download new internal firmware.
Condition is caused by removing the MP Baseplate address
plug before module power-up.
No
light
No
light
No
light
Yellow
steady
Application has stopped.
Green
steady
Green
steady
Yellow
steady
Yellow
steady
Module is faulty or has detected a bad address plug.