Rockwell-automation T71xx Regent+Plus Processor Modules 110 VAC, 220/2 User Manual download pdf (Page 6)

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

6 (Issue 1) Industrial Control Services

Processor Indicator

This red and green LED pair indicates the overall health of the

processor module. During normal operation the green PROC

indicator is on. If a module fault occurs the red indicator turns on

and the green indicator turns off.

Communications Indicator

This red and green LED pair indicates the overall health of the

system’s communications. During normal operation the green

COMM indicator is on. If a communications fault occurs the red

COMM indicator turns on and the green COMM indicator turns

off.

I/O Indicator

This red and green LED pair indicates the overall health of the

system’s I/O. During normal operation the green I/O indicator is

on. If an I/O fault occurs the red I/O indicator turns on and the

green indicator turns off.

An I/O module failure causes all of the processor modules to

indicate an I/O fault. An I/O transceiver module, I/O power

supply module, or I/O Safetybus cable fault causes only the

associated processor module to indicate an I/O fault.

Run Indicator

This green LED is off if the Regent has cold-started (system power-

up without 2oo3 validated programs). After the RAMcode is

loaded the Run LED flashes slowly (about ½ Hertz). With at least

one program loaded and running this indicator will flash faster

(about 2 Hertz).

The RUN indicator will be on steadily when an application

program scan exceeds the maximum allowable scan time

(approximately 200 milliseconds for the 128 kbyte modules, and

400 milliseconds for the 512 kbyte modules).

Battery Indicator

The green BATT OK indicator shows whether the module’s battery

has sufficient power to maintain the programs in the processor. If

the battery has adequate power, this LED will be on. If the battery

needs to be replaced this LED will be off .

Memory Lock Indicator

This green LED indicates whether the module’s memory lock

keyswitch is in the on or off position. The MEMLK indicator will

be green when the keyswitch is in the on position.

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Rockwell-automation T71xx Regent+Plus Processor Modules 110 VAC, 220/2 User Manual Page 6