Product category:
Smaller-Sized PLCs
News Release from: Red Lion Controls | Subject: Dual Loop Controller
Edited by the Engineeringtalk Editorial
Team on 05 June 2001
PID controller has new ramp and soak
features
The Dual Loop Controller (DLC) from Red Lion Controls is a full featured, dual input PID controller with new ramp and soak features, for the precise control of an application's heating rates.
The Dual Loop Controller (DLC) from Red Lion Controls is a full featured, dual input PID controller with new ramp and soak features, for the precise control of an application's heating rates The DLC can be used as a modular building block and is ideal for applications, such as those found in the plastics, metal finishing and textile industries, which utilize multi-zone temperature and process control
This article was originally published on Engineeringtalk on 19 Jun 2000 at 8.00am (UK)
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Building-block PID controller for any application
The new Dual Loop Controller (DLC) from Red Lion Controls is a full featured, dual input PID controller which is designed to easily integrate PID into any application.
Complete range of meters for any application
Red Lion has introduced a complete range of tachometers, digital panel meters, large displays, timers, counters and sensors for almost any application
Together with the high resolution TX700 touchscreen, the DLC is now being packaged by Red Lion as a total solution for control and monitoring in such applications.
The DLC has two independent, 'A' and 'B', PID control loops, with both inputs able to be configured to accept a wide range of thermocouple, RTD, 0-10 V, 0/4-20mA, or resistive signals.
The two time-proportioning or DC analogue outputs can be programmed to control two independent processes, and the two alarms per channel can be configured for various alarm modes, or provide a secondary control output for heat/cool applications.
Further reading
PID controllers look good value
Red Lion Controls has introduced two new 1/16 DIN PID controllers which offer high functionality at low cost: the T16 temperature controller and the P16 process controller.
Relay outputs for transistor output devices
The new RS-DIN rail relay system from Red Lion provides a compact and modular method of adding relay outputs to any transistor output device.
The controller operates in the PID Control mode for both heating and cooling, with on-demand auto-tune that establishes the tuning constants.
A unique overshoot suppression feature allows rapid response times, without leading to excessive overshoot.
The DLC easily integrates into virtually any PC-based SCADA system but has been specifically designed to interface with the TX700 touchscreen for alarm and event logging, recipe handling, modem access and trending.
The TX700 is an ideal complement to the DLC, being designed for industrial applications, particularly in the process and control arenas.
A thin film transistor display, with twin tube backlighting, gives stunning resolution to its 640 x 480 VGA, 10.4 inch display.
A further advantage of this method of display is the exceptionally wide viewing angle which allows users to easily monitor displayed data from different positions.
An analogue resistive touchscreen with continuous resolution allows any area of the TX700 display to be configured as a key, and an Intel chipset, together with an accelerated graphics controller, ensures high speed graphic animation.
For protection in harsh environments the TX700 is fitted with a rugged anodised aluminium IP65/NEMA 4 front panel.
Configuration of the DLC and TX700 is made easy by Red Lion's RLCPro Windows-based software package and the latest version of EDICT-97 which enables users to edit display pages on a "what you see is what you get" basis.
With EDICT-97 supporting an open-ended architecture, users can configure systems dictated by either numbers of pages or amounts of data, the only constraint being available memory.
EDICT-97 is highly intuitive and menu driven and is therefore exceptionally easy to use, running within MS Windows 3.11, MS Windows 95 or MS Windows NT.
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