Rockwell Automation T3122 ICS Regent Processor Modules - Manual (Page 8)

Processor Modules (T3110, 11, 12, 20, 21, and 22)
8
Industrial Control Services
Power Indicator
The green POWER indicator is on when the module is
receiving adequate power and its internal power supply is
healthy.
Reset Button
A reset button is used to initiate the voted reset function. A
voted reset clears system fault indicators after a fault has
been detected and a module has been removed and replaced.
Pressing the reset buttons on two operating modules performs
a voted reset. During a voted reset, the processors continue to
execute the application programs and fault reporting is
temporarily suspended. If a new processor module has been
inserted it is synchronized and automatically educated by
standard diagnostic tests performed by the system. At the end
of the voted reset all of the internal fault status bits are reset
and normal fault reporting is enabled.
The time it takes the system to complete a voted reset may
range from a couple seconds to a few minutes. Larger
processor memory sizes and application program scan times
will result in longer voted reset times. However, during the
voted reset, the system always continues to read and write I/O,
solve application programs and perform communications
functions normally.
Memory Lock Keyswitch
The memory lock keyswitch is used to prevent changes or
modifications to the system’s application programs. When the
memory lock keyswitch is in the off position, programs can be
modified.
The system’s memory lock status is voted: If at least two
processor modules are locked the system is memory locked, if
at least two processor modules are unlocked, the system
memory is unlocked.
In W INTERPRET developed systems, changing the memory
lock status from off (unlocked) to on (locked) automatically
disables all input and output forcing. Forcing can be restored
only by unlocking the system memory and enabling the force
tables again using W
INTERPRET .
Note: