About 802.15.4 Wireless
802.15.4 is not one of the most widely known wireless technologies but it is easy to setup and use, and vey reliable. You will need a 802.15.4 modem that plugs into your USB port of your computer to talk any number of 802.15.4 relays with a standard range of 300' and up to 1 mile. You can choose the distance of the module installed at checkout.!
802.15.4 Wireless Modules
This board is equipped with a 802.15.4 Module. The 802.15.4 communications module adds wireless communications to the board. The 802.15.4 module is powered from the board. The board itself will require 12 volts of power and can be hard wired or you can purchase a "wall wart" type Power Supply at checkout. Click the following link for a spec sheet on the XBeeŽ Multipoint RF Modules.
As with any wireless technologies, for optimal performance it needs to be line-of-sight. In other words the antennas of the board and modem must "see" each other to get the optimal range or even be able to communicate at all. Select the External Antenna option to provide better range especially when controller will be mounted in an enclosure or behind a wall or obstruction.
External Antenna Option
The External Antenna option is available with the 300' and 1-mile range modules and has a short pig tail that connects to a button on the 802.15.4 external module. Please note that the internal antenna modules (shown above) have antennas that are about an inch long and integrated into the module. The external antenna cannot be used on an internal antenna module or added after purchase. Prices shown are with the 300' internal antenna option. 802.15.4 Modules
802.15.4 Wireless Modem
Plug the XBP24-AUI-EXT_ZIGMO modem into the USB Port of your computer. The modem will mount as a COM port on your PC. Open the COM port and start sending data to the modem. The modem will forward your data to all Wireless 802.15.4 compliant devices within range (it is also possible to speak to a specific device when other controllers are in range). Mounting slots on the modem make it easy to attach to a wall to allow for line-of-site operation. The modem is also available at checkout. 802.15.4 Modem
Take Manual Control of Taralist
At any time, a computer may monitor the Taralist Controller to read the status of the relays, activate relays, or change configuration settings using Base Station Software. This USB version will allow access to the board as long as it is still connected to the USB port of
your computer. A computer can take over the Taralist or the Taralist can operate autonomously (without a computer). The Taralist Configuration Utility is part of Base Station software and this is a free download.
Once the Taralist is configured, it will run through the list of events stored in its on board memory every second to look for a match with the current time. If a match with the current time and a configured event is discovered, it will execute the event.
There are 2 possible ways to control the relays on a Taralist Series controller.
- A Relay can be Directly Controlled by a time schedule.
- A Relay can be controlled from a computer through a wireless connection. A computer can take control of any or all relays on a Taralist controller at any time. Once taken over, the Taralist logic will not be able to switch a relay. The computer MUST return control of the relay back to the Taralist Logic for standalone operation.
Who's Qualified to Use the Taralist Series?
Some computer skills required. The Taralist Relays do not require programming, simply configure the device with the included Base Station Software. While programming is not required and simple functions can be done rather easily with basic computer skills, complex events can be configured which will require some understanding and patience.
Perhaps the most overlooked aspect of relay control is proper handling of inductive loads. Inductive loads can best be defined as anything with a magnetic coil, such as a motor, solenoid, or a transformer. Controlling a inductive load using this relay controller requires the use of induction suppression capacitors. The purpose of this capacitor is to absorb the high voltages generated by inductive loads, blocking them from the contacts of the relay. Without this capacitor, the lifespan of the relay will be greatly reduced. Induction can be so severe that it electrically interferes with the microprocessor logic of our controllers, causing relay banks to shut themselves down unexpectedly. In the case of USB devices, customers may experience loss of communications until the device is reconnected to the USB port. Capacitors that we offer are available at checkout, for more information view our Induction Suppression Video.