1. Introduction

Chapter 1 introduces the Smart Star embedded control system and describes the features associated with the backplane chassis and the CPU card. The Tool Kit containing the hardware essentials to begin using the Smart Star is described, and the software highlights are presented.

The Smart Star is a modular and expandable embedded control system whose configuration of digital I/O, A/D converter, D/A converter, and relay I/O cards can be tailored to a large variety of demanding real-time control and data acquisition applications.

The typical Smart Star system consists of a rugged backplane with a built-in voltage regulator, a CPU card, and one or more I/O cards. The CPU card plugs into a designated slot on the backplane chassis, which has additional slots available for any combination of I/O cards. A high-performance Rabbit 2000 microprocessor on the CPU card operates at 22.1 MHz to provide fast data processing.

1.1 Features

• C-programmable to create a custom user interface

• Flexible functionality---modular configuration allows interchanging or replacing individual I/O cards

• Expandable--up to 168 I/O ports

• Choice of two backplanes--with either 3 or 7 slots for I/O cards

• Choice of CPU cards--with or without One RJ-45 Ethernet port compliant with IEEE 802.3 standard for 10Base-T Ethernet protocol

• RS-232 and RS-485 serial ports allow networking to other Smart Star units, single-board computers, or enterprise computing centers

• 128K SRAM and 512K flash memory, optional 512K SRAM

• Real-time clock

• Watchdog supervisor

• Backup battery

• Optional backlit 122 × 32 graphic display/keypad module

• RabbitLink Ethernet gateway available for remote download/debug, Web serving, and e-mail

Table 1 lists the backplanes, CPU cards, and the I/O cards that are available for the Smart Star control system. Appendix A provides detailed specifications for the Smart Star backplanes and the CPU cards.

Table 1. Smart Star Backplanes and Cards 

Card		Model	Features
Backplane		SR9010	7 I/O card slots, 1 CPU card slot
		SR9050	3 I/O card slots, 1 CPU card slot, header connections for optional LCD/keypad module
CPU		SR9150	Full-featured CPU card with RJ-45 Ethernet port
		SR9160	Full-featured CPU card without RJ-45 Ethernet port
I/O Cards	Digital I/O	SR9200	16 digital inputs, 8 digital sinking outputs
		SR9210	8 digital inputs, 16 digital sinking outputs
		SR9220	8 digital inputs, 8 digital sinking outputs
		SR9205	16 digital inputs, 8 digital sourcing outputs
		SR9215	8 digital inputs, 16 digital sourcing outputs
		SR9225	8 digital inputs, 8 digital sourcing outputs
	A/D Converter	SR9300	12-bit A/D converter, 11 channels, 0 V - 10 V
		SR9310	12-bit A/D converter, 11 channels, -10 V - +10 V
		SR9320	12-bit A/D converter, 11 channels, 4 mA - 20 mA
	D/A Converter	SR9400	12-bit D/A converter, 8 channels, 0 V - 10 V
		SR9410	12-bit D/A converter, 8 channels, -10 V - +10 V
		SR9420	12-bit D/A converter, 8 channels, 4 mA - 20 mA
	Relay	SR9500	5 SPST relays and 1 SPDT relay, each protected with onboard snubbers
		SR9510	8 SPDT relays (no snubbers)

1.2 User Connections

Connections to the I/O cards are made via a ribbon cable connector or optional field wiring terminals that are either pluggable or have screw terminals. Three different Field Wiring Terminals (FWTs) are available. Table 2 lists the I/O cards and the Z-World part numbers for the corresponding FWTs.

Table 2. Guide to FWT Selection

FWT Description	I/O Cards	Z-World Part Number
		Pluggable Terminals	Screw Terminals
FWT27	Digital I/O Relay (SR9510)	101-0420	101-0424
FWT18	A/D Converter D/A Converter	101-0421	101-0425
FWT18R	Relay (SR9500)	101-0422	101-0426

NOTE	Appendix A, "Field Wiring Terminals," provides further information on FWTs, including their dimensions.

1.3 Optional Add-Ons

The LCD/keypad module is the only available optional add-on. Further details on the LCD/keypad module are provided in Appendix B.

Visit Z-World's Web site for up-to-date information about additional add-ons and features as they become available. The Web site also has the latest revision of this user's manual.

1.4 Development and Evaluation Tools

1.4.1 Tool Kit

The Tool Kit has the hardware essentials that you need to create and use your own Smart Star control system.

The items in the Tool Kit and their use are as follows:

• Smart Star (SR9000) User's Manual with schematics for the backplane chassis and the CPU cards (this document).

• User manuals for available I/O cards.

• Programming cable, used to connect your PC serial port to the Smart Star CPU card to write and debug C programs that run on the Smart Star control system.

• FWT27 pluggable field wiring terminal.

• Screwdriver.

• DC power supply, used to power the backplane, which in turn supplies power to the CPU card and the I/O cards. The DC power supply accepts an AC input of 100 V to 240 V at up to 0.6 A, and delivers a DC output up to 1.1 A at 24 V.

• Rabbit 2000 Processor Easy Reference poster.

• Registration card.

1.4.2 Software

The Smart Star control system is programmed using Z-World's Dynamic C Premier, an integrated development environment that includes an editor, a C compiler, and a debugger. Library functions and software drivers provide an easy-to-use interface for the Smart Star control system. Dynamic C Premier is sold separately.

Z-World http://www.zworld.com Voice: (530) 757-3737 FAX: (530) 757-3792 sales@zworld.com