UNC MasterLogic Programmable Logic Controller Introduction

The MasterLogic PLC is a small and compact controller that installs conveniently into a confined space and delivers power and performance for a control application.

Modular and Scalable

MasterLogic PLCs are modular, scalable and rack-based. The PLC can be either stand-alone or distributed with peer-to-peer connections. The CPUs, power supplies and rack sizes are available in various models to best ft a particular application.

Compact Size

The module size is as small as 27x98x90 mm (pocket size). This contributes to cost and floor space eficiency in today's world where floor space is a premium resource. Transportation is also made much easier.

Speed and Power

A rliable processor makes it intinsically powerful. All program instructions are executed at a high speed of 42 ns/step, unique to Honeywell. Even complex instructions are processed at this fastspeed.

A dedicated I/O bus controller supplements the main processor in V0 refresh to achieve high speed scanning (e.g. estimated 15ms for large PLC applications, say, 2500 /Os and program size of 400 Kbytes).

Digital 1/0 Modules

MasterLogic has a wide range of digital I/0 modules:

●24V DC input modules (Sink source or source only type)

●AC input modules (110V or 220V AC)

●Relay, Triac, transistor ouput modules (sink or source) 8, 16, 32, 64 points /O module

●Photo-coupler isolation

●LED for module and input status

●Easy maintenance: Terminal block type, one-touch installation of module

Analog I/0 Modules

●High speed AD or DIA (250μs/ channel) conversion and processing

●Channel to channel isolation

●High resolution (16 bits)

●Digital value in 4 data formats

●Detection flags for input signal disconnect when analog input rangeis 1~ 5V or4~ 20 mA.

●LED status displays for RUNI ERROR conditions

●Voltage/ Current switching option

●RTD (2-wire, 3-wire, 4-wire)

●Thermo-couple (K,J,B,T,E, R, S, N, C types) 

Special Modules

●2-channel high speed counter (voltage input or differential voltage incremental encoder, preset function)

●Positioning modules

●Motion control module

If the field I/0 signals are located too far away from the MasterL ogic CPU the same Vo modules can also be used as remote  I/O to reduce wiring costs and associated costs. In addition, it also significantly increases the overall I/0 capacity of the MasterLogic PLC e.g. 23,808 to 128.000.