Time Activated Relay Controller 8-Channel High-Power Switching

Time Schedule Controlled Relay 8-Channel High-Current

This NCD Taralist series 8-Channel high-power relay controller allows users to control up to 8 on-board relays based on a time schedule.  Taralist controllers evaluate up to 999 events each second to determine which relays should be activated or deactivated.  Control signs at specific times of the day, activate security lighting, or control bells or alarms to indicate work shift or classroom changes.  Taralist controllers have an on-board real time clock with battery backup to help keep the time in sync.  This controller consists of 8 high-current relays, available with your choice of 20-Amp SPDT or 30-Amp SPST relays (configured during purchase).  High-Current relays are suitable for use in high-power control applications, including lights, motors, and other types of electrical devices.  On-board LED status lights indicate relay on/off status.  Take control from a computer using your favorite communication technology, including USB, RS-232, Bluetooth, WiFi, Ethernet, and industrial wireless.  NCD Taralist controllers also include an on-board XR expansion port, allowing control of up to 256 relays.  Mix and match relay types for different kinds of switching applications.  Send commands to Taralist controllers from your computer to override the the relay control schedule or return control of the relays back to the Taralist clock.  Use a computer to configure and override the relays or disconnect from your computer and let it control relays on its own.  Use your computer to store multiple time schedules, simply upload a new time schedule to the controller when needed.  Includes support for Daylight Savings Time and time-drift compensation.  Base Station software makes it easy to configure Taralist controllers with a complete point-and-click GUI interface.

Taralist Time Activated Relay Controllers

Our Taralist Relay Controllers make it easier than ever to add time activated switching to your most demanding automation application.  Taralist controllers include an integrated Real Time Clock (RTC) with battery backup that allows relays to be controlled according to a time schedule.  Use your computer to sync the current time with your computer, setup the time schedule, and store your schedule into the Taralist controller.  Once stored, Taralist does not require a computer for daily operation.  Taralist will activate relays according to your event schedule, with a robust array of relay control events.

Time Schedule Events

Taralist stores up to 999 events into its memory.  Every second, Taralist examines all 999 events and looks for a time match.  When a time match is detected, a relay is turned on or off.  Relays may be activated based on many time-based criteria, including: Year, Month, Day of the Month, Day of the Week, Hour, Minute, and Second.  Activate relays only on Wednesdays, or only on a particular year, or both!  You have tremendous flexibility in determining which matches you require for each event, making it possible to only activate relays on weekends, or on specific holidays.  Some of our customers use Taralist controllers to activate a bell between classes or to control flashing signs for school zones.

Daylight Savings Time is also supported, and is fully customizable. As we all know, DST laws change periodically, but the Taralist series allow you to change the year and date of all DST events when needed (we have programmed the US DST dates until 2030 for you).

Base Station Software

Taralist controllers are configured using our Base Station Software.  Base Station provides you with GUI interface for configuring events.  Multiple event schedules may be saved on your computer and uploaded to Taralist when needed.  Taralist controllers support most of our communications technologies.  We advise having a ZUSB USB Interface module on-hand for troubleshooting, but Taralist also works through Bluetooth, WiFi, Ethernet, RS-232, and industrial wireless communication technologies.

Clock Accuracy – Adjustable Time Compensation

Clock Accuracy is of paramount importance to us. Like most clocks, time drift is a reality that must be considered. The Taralist clock has some special features to help keep the time accurate. We have included time compensation functions that allow you to automatically adjust the clock forward or back (by up to 15 seconds) each day of the week. For instance, you may find the Taralist keeps better time if it automatically advances the clock 1 second each day of the week. Or you may find that you need to subtract 5 seconds from the clock 1 day per week. Adjustable time compensation will help keep your clock accurate (though it is always a good idea to check on the clock periodically and sync it with your computer).

Computer Control

NCD time activated Relay controllers have some amazing abilities when it comes to making decisions on their own based on the events you configure, but you can take control of the relays at any time from a computer as long as your computer is connected to a Taralist controller.  Send commands to override the time schedule and turn relays on or off manually with your computer.  When your computer has control of the relay, Taralist will not be able to control it from your event schedule.  Simple click a button to give a relay back to Taralist for time-schedule control.

Power Loss Backup Buffer

The Midnight Backup Buffer is a special feature we developed to help keep track of which relays should be activated in the event power is lost. Every night at midnight, the current status of all relays is stored in non-volatile memory. If power is lost, the Taralist will load the status of the relays from memory. Next, the Taralist will calculate all events from midnight to the current time to determine if any relays need to be activated or deactivated. Finally, the Taralist will refresh all relays and will be ready for normal operation.

Relay Outputs

NCD time activated relay controllers are capable of controlling up to 256 Relays.  Taralist is available with 1, 2, 4, 8, 16, 24, 32, 48, 56, or 64 on-board relays.  XR Expansion Relays may be added to the XR Expansion Port to control more relays of different types if needed.

20-Amp SPDT Relay Option

This controller is available with a 20-Amp relay option, allowing control of high-power loads up to an absolute maximum of 240VAC at 20 Amps. Ideal for high-power switching applications, this relay should never be used for low-power signals. The 20-Amp relay is of the SPDT variety, which provides Common (C), Normally Open (NO), and Normally Closed (NC) connections. Common is connected to NC when the relay is off. Common disconnects from NC and connects to NO when the relay is activated. This relay uses .250″ Quick Connect terminals (optional accessory) to connect to the top side of the relay. The relay is molded with COM, NC, and NO markings into the plastic.

30-Amp SPST Relay Option

This controller is available with a 30-Amp relay option, allowing control of high-power loads up to an absolute maximum of 240VAC at 30 Amps.  Ideal for high-power switching applications, this relay should never be used for low-power signals.  The 30-Amp relay is of the SPST variety, which provides Common (C) and Normally Open (NO) connections.  Common has no connection when the relay is off.  Common connects to NO when the relay is activated.  This relay uses .250″ Quick Connect terminals (optional accessory) to connect to the top side of the relay.  The relay is molded with COM, NO markings into the plastic.

Features

• Time Activated Relays using Integrated Real Time Clock
• Stores up to 999 Events and Control Relays Without a PC Connected
• 8 On-Board 20-Amp SPDT or 30-Amp SPDT Relays with LED Relay Status Lights
• Designed for High-Power Switching Applications
• Battery Backed Clock Keeps Time when Powered Down
• Control Relays based on Time Schedule or Override with your PC
• Modular Communications Interface Supports Many Popular Communication Modules:
  • WiFi, Bluetooth, Ethernet, Industrial Wireless, USB, RS-232 and More
• Programmable Time Compensation Reduces Time Drift
• Supports Daylight Savings Time with Programmable Schedule
• Calculates Relay Status from Midnight to the Current Time on Boot Up
• Controls 256 Relay Based on Time Schedule
• Easy GUI Configuration using Base Station Software