Introduction; What Is Embedded Plc; Bl2500 Overview - OEM BL2500 User Manual

PLC BL2500 User's Manual
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1.1 WHAT IS
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The PLC system turns a Rabbit-based controller, such as the Coyote BL2500 Single-Board-
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Computer (SBC), into a high performance and yet inexpensive Programmable Logic Controller (PLC).
The Target PLC can be programmed using the
standardized automation control programming languages IEC 61131-3:
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Sequential Function Chart (SFC)
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Function Block Diagram (FBD)
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Ladder Diagram (LD)
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Structured Text (ST)
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Instruction List (IL)
PLC – ISaGRAF Workbench becomes an alternative to Dynamic C to program Rabbit-based
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controllers.
The PLC system consists of two parts:
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The Target PLC: A SBC BL2500 powered with the RabbitCore® module RCM3200 (Rabbit 3000
microprocessor, 44.2 MHz clock speed, 512K Flash, 256K Battery-backed SRAM, 512K Fast SRAM
and 10/100BaseT) and loaded with the
The Firmware Kernel is distributed as a .bin
file which is loaded to the Target through the
PLC Utility. The Kernel runs the
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PLC application in a loop (reading inputs →
evaluate the logic → updating outputs) and
also provides the communication interface
between the Target and the Workbench.
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The ISaGRAF Workbench: The Workbench
provides a complete PLC programming
environment, including an editor for each of
the PLC programming languages,
downloading PLC application to the target,
simulation, program-debugging tools and
on-line monitoring of the PLC application.

1.2 BL2500 OVERVIEW

The BL2500 is an advanced Single Board Computer that incorporates flash memory, SRAM, digital I/O
ports, A/D converter input, D/A converter outputs, RS232/RS485 ports and Ethernet interface (10/100
Mbps). The BL2500 SBC gives PLC designers extremely low-cost embedded control for high-volume
applications such as product control, factory equipment control, access control, HVAC and vending
machines.
The BL2500's compact board size of 100 x 100 mm is easily mountable in standard 100 mm DIN rail
trays. External connections via polarized locking industry standard Molex® type connectors enable rapid
assembly with wire harnesses. These connectors also provide dependable cable harness connectivity to
I/O.
Main features of the
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Table 1.
OEM Technology Solutions

1. INTRODUCTION

PLC?
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PLC Firmware Kernel running on the BL2500 Target PLC, are shown in
PLC – ISaGRAF® Workbench in any of the
PLC Firmware Kernel (or refer to as the Kernel).
Introduction
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