Pepper-computer Modular Computers RS485 Bedienungsanleitung PDF herunterladen (Seite 20)

SMART I/O User’s Manual

March 12, 1996

Page 1 - 8

Introduction

1.1 Product Overview

SMART I/O is based on a cost effective open system for industrial automa-

tion and industrial computing. By programming the SMART I/O using the

standard ISaGRAF workbench for IEC 1131-3 PLC programming languages

and the Ultra-C compiler (DOS, OS-9) for ANSI-C real-time programming,

the SMART I/O can be used as a micro PLC and as a real-time computer

system.

Equipped with the standard real-time fieldbus PROFIBUS, it allows the use

of the SMART I/O in a fully transparent real-time network architecture. This

architecture provides open communication between PEP systems and third

party I/O systems, as well as MMI. PROFIBUS not only allows I/O commu-

nication, but also file transfer, remote login and remote debugging facilities.

SMART I/O is designed around the MC68302 CPU from Motorola which

has two on-chip microprocessors. One is the industry standard 68HC000

running at 20MHz, and the second is a communication orientated RISC

processor. Fieldbus protocols use the power of this RISC CPU, freeing the

68HC000 for other tasks. Communication between the 68HC000 and the

communication processor is made using on-chip dual-ported RAM. Nonvola-

tile memory (battery backed SRAM and FLASH memory) allows a secure

and long-term backup of the application program and data.

Well suited for machinery manufacturers and all OEMs, the SMART I/O is

an ideal companion for VME9000 and IUC9000 systems. Connected to-

gether with these high-end VME or IUC computers and PLCs, SMART I/O

allows the decentralization of I/O functions through the world wide accepted

PROFIBUS fieldbus.

SMART I/O systems provide more power than dumped remote I/O systems

since they support local intelligence: an IEC1131-3 programming environ-

ment as well as ANSI-C programming under real-time OS. All this power is

provided with excellent price/performance characteristics.

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