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1. Introduction
1.1 Overview
MasterLogic Programmable Logic Controllers (MLPLCs) are modular, scalable, and rack-based controllers. The controller (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 suit different applications. It is tightly integrated to the control system,
and helps to increase operational efficiency.
SoftMaster is a software tool designed to program and debug the MLPLC series.
The MLPLC series are as follows:
? ML-200
? ML-50
? ML-200 IEC
? ML-200R
1.2 Features
The following are key features of MasterLogic PLC.
? Supports full redundancy (CPU, power and network) – same CPU can operate in
both redundant and non-redundant mode.
? Compact pocket size modules – rack room and cabinet space saver.
? Supports IEC61131-3 standard programming – Ladder Diagram (LD), Sequential Function Chart (SFC), Structured Text (ST), and Instruction List (IL) language options.
? Supports a huge library of standard function blocks and also supports creating newor user-defined function blocks.
? Supports different types of I/O modules – digital, analog (isolated), High Speed Counter (HSC), Resistance Temperature Detector (RTD) and so on.
? Supports open network protocols with field devices – Profibus? DP, DeviceNet?,
MODBUS (Ethernet and Serial).
? Supports open communication with external systems – Ethernet, fiber-optic (100MBPS), serial RS232/RS422.
1. Introduction
1.2. Features
20 ML200 CPU and SoftMaster User's Guide 210
Honeywell Confidential & Proprietary 08/2011
? Supports peer-to-peer communications between PLCs – Dedicated Ethernet 100 MBPS or Fiber-optic option.
? Supports smart I/O modules (DIN rail) on open protocols – Profibus-DP, DeviceNet,MODBUS expanding I/O capacity, remote I/O applications or as RTUs for other manufacturers’ PLC.
? Used for self-diagnostics – network diagnostics, system logs, Auto scan, and monitoring system.
? Easy to configure and troubleshoot the software.
? Supports program simulator to test programs offline without PLC/CPU.