User`s guide

MASSA PRODUCTS CORPORATION
Product Manual- April 24, 2012 3 M3 Wireless Ultrasonic Level Sensor
2.0 Gateway Basic Settings
2.2 Time Source
Initially you may set up the Time Source by manually entering the
time which will be retained up to 10 days when powered off (model
X4 gateways only). Go to the System Configuration – Date and Time
Settings Web UI and initially, set the time manually. Next, in the
Time Source Settings UI, you may select a time source such as
my.idigi.com or other reliable time sources.
2.3 Gateway’s XBee Settings
The settings listed below are ones that should be adjusted from the factory default settings. The Web UI for these settings
can be found at XBee Network, and then clicking on the gateway’s network or extended address. Select Advanced Settings
to program these registers below.
□ Extended PAN ID (ID): xxx
Gateway XBee PAN ID = 0 will assign a random value
and sensors must have PAN ID=0 to associate. If multiple
gateways are placed in the vicinity of each other, then the
user should assign unique non-zero identical PAN IDs for
each application. See section 3.1.14 for more information.
□ Scan Channels Scan Channels (SC): 0x1ffe
The SC register from a factory shipped gateway is 0x3fff
or 0x7fff. Sensors are programmed are defaulted to
0x1ffe. It is recommended that the gateway be set to
0x1ffe.
□ Peripheral sleep count (SN): see below
□ Cyclic sleep period (SP): 1000 (recommended)
The SN and SP registers control the poll timeout for the
gateway which holds the sensor in its child table. The
formula is:
Poll Timeout = 0.03 x SN x SP (sec)
For example, to retain the sensor for 24 hours (86,400
seconds) with a SP recommended setting of 1000: SN =
86,400 ÷ 30 seconds =2880. Every time the sensor wakes
up from sleep and commissions to the gateway, it will reset
its own poll timeout timer. A gateway will drop a sensor if
it does not get a response from the sensor for the entire poll timeout period (for example a truck has blocked the
RF signal). User may want to program this Poll Timeout setting to at least 4 times the sensor’s sleep timer
setting (see Section 3.1.5). Other applications where there can be more than 10 sensors on a gateway (limit 10),
the Poll Timeout can be set to intentionally drop sensors so others can join. Recommended setting for such an
application is 1 minute. Note that sensors will be required to rejoin each time awake cycle, which will slightly
use more battery power in this type of application.
Click the Apply button to accept all the settings.