Time Activated Relay Controller 2-Channel Solid State

Time Schedule Controlled Solid-State Relay 2-Channel

This NCD Taralist series 2-Channel Solid-State relay controller allows users to control up to 2 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 2 Solid-State relays with many relay options for AC or DC switching (configured during purchase).  Solid-State relays are suitable for use in a wide variety of high-reliability 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.

Solid State Relays

Solid state relays are ideal for agricultural switching applications, or remotely located switching.  SSRs are frequently chosen to control pumps, valves, solenoids, lights, and other high-reliability applications.  NCD solid-state relay controllers do not include solid-state relays, but you will have the option to choose the type of solid state relays you require when customizing your product. This controller is designed specifically to fit select Crydom solid-state relays, but may be compatible other solid-state relays made by other companies.

Features

• Time Activated Solid-State Relays using Integrated Real Time Clock
• Stores up to 999 Events and Control Relays Without a PC Connected
• 2 On-Board Solid-State Relays with LED Relay Status Lights
• Designed for High Reliability AC or DC 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