1. Introduction

The OP6800 intelligent terminal interface is a small, high-performance, C-programmable terminal interface that offers built-in I/O and Ethernet connectivity. A Rabbit 2000 microprocessor operating at 22.1 MHz provides fast data processing.

1.1 Description

The OP6800 intelligent terminal interface incorporates the powerful Rabbit 2000 microprocessor, flash memory, static RAM, digital I/O ports, RS-232/RS-485 serial ports, and a 10Base-T Ethernet port.

1.2 Features

• 122 × 32 graphic display.
• 7-key keypad.
• 7 LEDs.
• 24 digital I/O: 13 filtered digital inputs, and 11 sinking high-current outputs (7 outputs with LED indicators, and 4 high-current digital outputs with transient protection to drive inductive loads).
• Rabbit 2000^TM microprocessor operating at 22.1 MHz.
• 128K static RAM and 256K flash memory standard, may be increased to 512K SRAM and 512K flash memory.
• One RJ-45 Ethernet port compliant with IEEE 802.3 standard for 10Base-T Ethernet protocol (OP6800 only).
• Four serial ports (2 RS-232 or 1 RS-232 with RTS/CTS, 1 RS-485, and 1 CMOS-compatible programming port).
• Battery-backable real-time clock, connection point for external battery included.
• Watchdog.
• Reset generator.
• Meets NEMA 4 watertightness specifications when front-panel mounted.
• Remote program downloading and debugging capability via RabbitLink.

Two OP6800 models are available. Their standard features are summarized in Table 1.

Table 1. OP6800 Models

Feature	OP6800	OP6810
Microprocessor	Rabbit 2000 running at 22.1 MHz
Static RAM	128K
Flash Memory	256K
RJ-45 Ethernet Connector and Filter Capacitors	Yes	No
RabbitCore Module Used	RCM2200	RCM2300

Appendix A provides detailed specifications.

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.

1.3 Development and Evaluation Tools

1.3.1 Tool Kit

A Tool Kit contains the hardware essentials you will need to use your OP6800. The items in the Tool Kit and their use are as follows.

• OP6800 User's Manual with schematics (this document).
• Programming cable, used to connect your PC serial port to the OP6800.
• 12 V AC adapter, used to power the OP6800. An AC adapter is supplied with tool kits sold in the North American market. If you are using your own power supply, it must provide 9 to 36 V DC.
• Demonstration Board with prototyping area, pushbutton switches, and LEDs. The Demonstration Board can be hooked up to the OP6800 to demonstrate the I/O, and the prototyping area can be used for custom circuits.
• Ribbon cable to connect Demonstration Board to OP6800.
• Screwdriver.
• Rabbit 2000 Processor Easy Reference poster.
• Registration card.

Figure 1. OP6800 Tool Kit

1.3.2 Software

The OP6800 is programmed using version 7.06 or later of Z-World's Dynamic C Premier, an integrated development environment that includes an editor, a C compiler, and a debugger. Library functions provide an easy-to-use interface for the OP6800. Software drivers for the display and keypad, TCP/IP, I/O, and serial communication are included with Dynamic C Premier.