Introduction - MERRICK MC3 Hardware Manual

INTRODUCTION

Merrick MC³ controllers are used in industrial weighing applications, typically handling a material
feeder, conveyor belt scale or flow meter. This manual describes the MC³ hardware. It is a
microprocessor based system, with support for:
•
Isolated Analog I/O, 4..20 ma or 0..10V,
•
Digital I/O, dry contacts or 110V AC,
•
Special Isolated Load Cell inputs,
•
Special inputs for Quadrature Encoders,
•
Special outputs for External Totalizers.
The MC³ hardware is a platform for different Firmware Applications, which can be changed and
upgraded in the field.
The major components in the MC³ are
•
Mechanical enclosure. There are three different versions, Panel, Wall and Door mount.
•
Card Stack. Printed circuits boards in a standard PC/104 configuration.
•
Graphical Display and Touch Screen.
•
Power Supply, providing +5, +12 and -12V DC to components, inputs and outputs.
•
I/O racks for digital I/O
The controller is scalable and configurable by means of cards in the card stack and I/O racks.
MC3 Hardware Manual
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