Allen-Bradley 1747-OC Series, User Manual

Page: 93 / 126

1747-UM001A-US-P - March 2000
Using the Open Controller 7-7
BATT indicator
The BATT indicator reports the health of the open controller battery. Table
7.B lists the LED patterns for BATT.
Table 7.B
LED patterns for BATT
COM1, COM2 indicators
The COM1 and COM2 indicators report serial port activity and are not
controlled by the open controller CPU module. These LEDs flash green any
time there is activity (receive or transmit) over the serial link.
LED 1, LED 2, LED 3, LED 4 indicators
The LED 1, LED 2, LED 3, and LED 4 indicators are user-defined. Your
application uses the open controller API software to define LED conditions.
Table 7.C lists the possible LED patterns for LED 1, LED 2, LED 3, and
LED 4.
Table 7.C
LED patterns for LED 1, LED 2, LED 3, and LED 4
These states are possible: Which mean:
off battery OK
red battery low / battery dead
This LED: Can have these states:
LED 1
and
LED 2
solid red
flashing red
solid green
flashing green
off
LED 3
and
LED 4
solid red
solid green
off
Allen-Bradley HMIs