Rockwell-automation T71xx Regent+Plus Processor Modules 110 VAC, 220/2 User Manual download pdf (Page 7)

Processor Modules (T7110, 11, 12, 20, 21, and 22)

PD-7000 Sep-04 (Issue 1) 7

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.

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 WINTERPRET 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 WINTERPRET.

Note:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

No comments

Rockwell-automation T71xx Regent+Plus Processor Modules 110 VAC, 220/2 User Manual Page 7