Introduction

1.2Outside Enclosure Overview

The enclosure for the Liqui-tect panel’s controller board comes in two sizes:

The large enclosure is designed to accommodate the Transformer Module and future compo- nents, in addition to the controller board.

The small enclosure is built to hold the controller board only.

Both enclosures are 2-3/4" deep.

Both enclosures have a built-in liquid crystal display (LCD) and a key lock, as shown in the example below. The metal enclosures accommodate secure conduit fittings and protect components against external forces and debris.

Figure 1 Small enclosure—external features

The enclosure has knockouts and access slots on top and bottom for cables and wires.

LCD for configuration and operation

LIQUI-TECT PANEL

05-SEP-02 14:04:13

V5.100.0

PRESS =STATUS/SETUP

ESC

Key lock

Liqui-tect R

Monitoring System

The enclosure must be secured to a wall, either flush-mounted or recessed in the wall, as described in

2.0- Installation. Knockouts and access slots on the top and bottom allow easy connection of wires and cables (see 3.0 - Connections and Configuration) with either mounting type.

Figure 2 Large enclosure—internal features

Back of LCD

Transformer

Module

Controller Board

ON

On/Off switch

 

 

 

 

 

Knockouts and

 

 

 

 

 

access slots

for Transformer

Ground wire

Power

 

(top and bottom)

Module

for LCD

receptacle

 

 

2

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Emerson MC68HC16Z1 user manual Outside Enclosure Overview, Key lock

MC68HC16Z1 specifications

The Emerson MC68HC16Z1 is a versatile microcontroller that combines power and efficiency, making it an ideal choice for various embedded applications. As part of the Motorola 68HC16 series, the MC68HC16Z1 is designed to deliver robust performance while offering extensive support for both simple and complex tasks. With its 16-bit architecture, this microcontroller is well-equipped to handle a range of functionalities, from industrial control systems to automation processes.

One of the main features of the MC68HC16Z1 is its high-performance 16-bit CPU, which operates at speeds up to 20 MHz. This allows for efficient data processing and execution of instructions, which is critical in time-sensitive applications. The microcontroller boasts a rich instruction set, including various addressing modes that enhance programming flexibility. This versatility enables developers to implement efficient algorithms tailored to their specific application needs.

Power management is another noteworthy characteristic of the MC68HC16Z1. The device supports low-power operation modes, which is essential for battery-powered applications or scenarios where energy consumption is a concern. With its capability to switch between different operational states, the microcontroller can significantly extend battery life while ensuring that performance is not compromised.

The MC68HC16Z1 also includes an integrated analog-to-digital converter (ADC) that allows for direct interaction with analog signals. This feature is particularly beneficial in applications that require sensor data acquisition. Additionally, the microcontroller provides various communication interfaces, including serial communication options like UART and SPI, facilitating seamless data transfer between devices.

In terms of memory, the MC68HC16Z1 supports a wide range of options, including both RAM and ROM, allowing for flexible storage solutions depending on the application requirements. The built-in programmability further allows for updates and modifications to the firmware, ensuring that the system can adapt to evolving project specifications.

Moreover, the microcontroller features an extensive array of I/O ports, making it capable of interfacing with various peripheral devices such as sensors, actuators, and displays. This extensive connectivity enhances its usability in a range of applications, from robotics to automotive systems.

In summary, the Emerson MC68HC16Z1 microcontroller stands out for its balanced blend of performance, low power consumption, and feature-rich design. Its 16-bit architecture, integrated ADC, versatile communication interfaces, and extensive memory options make it a go-to choice for developers looking to create effective and reliable embedded systems. Whether for industrial automation or consumer electronics, the MC68HC16Z1 continues to be a dependable and powerful component in the realm of microcontroller technology.