User's Manual

WESROC
®
RMS Industrial CTM - Operation Manual - Independent Technologies, Inc.
72-70-209, Rev. A Page 11 01/18/2017
wake up once per minute and measure the level of the tank contents. The CTM will then
go back to sleep or will take the appropriate action if the tank level has changed since the
last measurement. Actions may include starting or ending the qualification of a tank level
event, reporting a tank level event to the Host, or reporting to the Host at a scheduled
report time. While in Normal mode, the CTM is also constantly monitoring itself for any
conditions that may require reporting to the Host. The CTM will also simulate a WESROC
®
RMS Tank Transmitter and will send ISM radio data packets to a Base Unit while in this
mode if the “Local Display” system configuration parameter has been enabled.
INITIALIZATION Mode: (One programming magnet in INIT position.)
Initialization mode is used for initializing the CTM to a WESROC
®
RMS Base Unit (Base
Unit) before using the Base Unit as a local tank level display device. Once the CTM has
been put into Initialization mode, it will simulate a WESROC
®
RMS Tank Transmitter and
will send an initialization data packet to the Base Unit once every 15 seconds (or sooner if
the tank level changes.) The CTM will time out of Initialization mode and will revert to the
Normal operating mode after 60 minutes. This is done to conserve battery life and to
ensure that the CTM continues reporting to the Host once the installer has left the site. See
the operating manual for the type of Base Unit that you are using for instructions on putting
the Base Unit into Initialization mode.
CONFIGURATION Mode: (One programming magnet in both OFF and INIT positions.)
Configuration mode is used to change one or more of the internal CTM configuration
parameters. When in this mode, system (CTM) or application (tank level) operating
characteristics can be changed using a PDU.
Changes made with a PDU are reported to the Host once the CTM is returned to Normal
mode. If field configuration is enabled in the Host, the Host will store the changes to its
configuration database, and will send the changes back to the CTM to confirm acceptance
of the changes. If field configuration is not enabled in the Host, the Host will overrule the
CTM and will send the previous configuration back to the CTM. The CTM will time out of
Configuration mode and return to Normal mode if it has not received a configuration
command from the PDU for 15 minutes. This is done to conserve battery life and to ensure
that the CTM continues reporting to the Host once the installer has left the site.
Reporting To Host
The CTM reports to the Host on a schedule determined by the Host configuration. The
reporting schedule can range from once per hour to once per month. The report interval
will directly affect battery life as the cellular sub-system is the major consumer of power in
the CTM. It is not recommended to leave the CTM configured with an hourly
reporting schedule for more than 24 hours as it will shorten battery life and may
lead to excessive cellular data charges.
In addition to scheduled reporting, the CTM will contact the Host to report CTM
configuration changes, tank level events, and high or low temperature conditions.