Automated Logic LGC, Technical Instructions

Page: 7 / 7

Revised 6/16/00 • LGC 7 © 2000 Automated Logic Corporation
LEDs
The LGC has several LED indicators to show
the status of certain functions. Table 2
explains the Run and Error LED signals in
detail to assist troubleshooting. See Figure 1
on page 2 for location of LED signals.
Power - indicates power is being supplied to
the module.
CMnet receive -indicates when the LGC
receives data from the CMnet.
CMnet transmit - indicates when the LGC
transmits data over the CMnet.
Console receive - indicates when the Console
Port receives data.
Console transmit - indicates when the
Console Port transmits data.
An - blinks to indicate network activity.
Protection
The LGC is protected by internal solid state
Polyswitches on the incoming power and
network lines. These Polyswitches are not
replaceable and will reset themselves if the
condition that caused the fault returns to
normal.
Production Date
To determine when a module was
manufactured, check the Module Status
report in SuperVision. Refer to the
SuperVision
User’s Guide for more information about the
Module Status report.
A sticker on the back of the module also
shows the date the module was
manufactured. The first three characters on
the sticker indicate the type of module. The
next three characters show the year, month,
and week of manufacture. (The month digit is
in hexadecimal.)
Table 2. LED Signals
Run LED Error LED Condition
2 flashes
per second Off Normal
2 flashes
per second 1 flash per
second Normal, but module is
alone on the CMnet
2 flashes
per second 2 flashes
alternating
per second Five minute auto-restart
delay after system error
2 flashes
per second 2 flashes in
sync per
second Module is configured for a
different baud rate than the
rest of the CMnet
2 flashes
per second 3 flashes
per second Module has just been
formatted
2 flashes
per second 4 flashes
per second Two or more items in the
database have the same
ARC156 CMnet address
2 flashes
per second On Exec halted after frequent
system errors
5 flashes
per second On Exec start-up aborted, Boot
is running
5 flashes
per second Off Firmware transfer in
progress
7 flashes
per second 7 flashes
per second Ten second recovery
period after brownout
14 flashes
per second 14 flashes
per second Brownout
Table 2. LED Signals
Run LED Error LED Condition