VersaTRAK RTU User M anual
Page 29 of 31
Last Revised: 05/23/02
SIXNET
••••
Box 767
••••
Clifton Park, NY 12065 USA
••••
+1 (518) 877-5173
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FAX +1 (518) 877-8346
••••
Local
Diagnostics
Local diagnostics can be performed through any available port while the VersaTRAK or
Mini-VersaTRAK RTU is responding to messages from other ports. Diagnostic software,
such as the SIXNET I/O Tool Kit, can be used to display the status of the I/O registers.
VersaTRAK
Status LED
The “ Status” LED on a VersaTRAK or Mini-VersaTRAK RTU should be ON
continuously within 3 seconds of powerup.
SIXTRAK I/O
Status LED
The “ Status” LED on each SIXTRAK expansion I/O module may be observed in one of
five states:
ON
The module is configured properly and communicating with the RTU.
OFF
There is no power to the module, or the status LED is being turned off intentionally by the
SIXNET I/O Tool Kit during the module linking operation.
LONG BLINK
.75 sec. ON, .25 sec.
OFF
Long blinking indicates one of two conditions. Either the module has lost communication
with the RTU for more than 10 seconds, or the module has not received configuration data
from the RTU. Upon initial system startup (no configuration in the RTU) this should be
the observed LED state on each module.
SHORT BLINK
.25 sec. ON, .75 sec.
OFF
Short blinking indicates a failure of the module self test upon powerup.
WINKING
10 blinks/ sec.
A status LED may be winked by the SIXNET I/O Tool Kit to bring attention to the
module. This winking occurs during module linking procedure. Refer to the online help in
the SIXNET I/O Tool Kit for more information.
RTU
Memory
All VersaTRAK and Mini-VersaTRAK RTUs have nonvolatile (battery-free) memory for
storing configuration data from the SIXNET I/O Tool Kit. They also have battery-backed
memory for storage of program variables and logged data. The battery is a rechargeable
lithium cell that is kept fresh by the power circuitry in the RTU. The memory retention
period for an unpowered RTU is at least one year at room temperature. The retention time
will be shorter at higher temperatures. The life expectancy of the lithium battery is
approximately 10 years.
