Omega Engineering CIO-DAC08, CIO-DAC16 user manual Introduction, Software Installation

1 INTRODUCTION

The CIO-DAC16 is a 16 channel analog output board. The CIO-DAC08 is an eight channel analog output board. The analog outputs are dual-DAC AD7273s with each output buffered by an OP07. The CIO-DAC family is compatible with MetraByte's DDA-06 but lacks digital outputs. Software designed for the DDA-06 will operate the analog outputs.

The analog outputs are controlled by writing a digital control word as two bytes to the DAC's control register. The control register is double buffered so the DAC's output is not updated until the second byte (the high byte) has been written.

The analog outputs can also be set for simultaneous update in groups of two, four, six, etc. or all sixteen. When a DAC pair is set for simultaneous update, writing new digital values to the DAC's control register does not cause an update of the DAC's voltage output. Update of the output occurs only after a READ from the board's addresses.

2 SOFTWARE INSTALLATION

An installation program labeled InstaCal™ is on the disk shipped with the board. This program will guide you through board configuration and switch settings. Refer to the Extended Software Installation Manual for complete instructions regarding installing and using InstaCal. If you decide not to use InstaCal as a guide, the information required for configuring the board is provided in the following section.

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