Manuel d'utilisation / d'entretien du produit CIO-DAC16 du fabricant Omega Engineering
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CIO-DAC16 and CIO-DAC08 User’s Manual Revision 4 October, 2000.
MEGA-FIFO, the CIO prefix to data acquisition board model numbers, the PCM prefix to data acquisition board model numbers, PCM-DAS08, PCM-D24C3, PCM-DAC02, PCM-COM422, PCM-COM485, PCM-DMM, PCM-DAS16D/.
Table of Contents 12 5 SPECIFICATIONS ............................................ 9 4.1 Control & Data Registers ..................................... 9 4 ARCHITECTURE .............................................. 8 3.10 Connector Diagram ......
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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.
3 HARDWARE INSTALLATION 3.1 Initial Board Setup The CIO-DAC## has one bank of gain switches for each analog output channel, one base address switch, a simultaneous update jumper for each DAC pair, a “power-up state” selection jumper and one wait state jumper block which must be set before installing the board in your computer.
Table 3-1. PC I/O Addresses SERIAL PORT 3F8-3FF EGA 2B0-2BF FLOPPY DISK 3F0-3F7 PARALLEL PRINTER 270-27F SERIAL PORT 3E8-3EF ALT BUS MOUSE 23C-23F CGA 3D0-3DF BUS MOUSE 238-23B EGA 3C0-3CF EXPANSION U.
3.3 Wait State Jumper The CIO-DAC## boards have a wait state jumper which can enable an on-board wait state generator. A wait state is an extra delay injected into the processor's clock via the bus. This delay slows down the processor when the processor addresses the CIO-DAC## board so that signals from slow devices (chips) will be valid.
. Figure 3-3. Simultaneous Update Jumper 3.5 Analog Output Range Switches The analog output voltage range of each channel can be set with a set of five ganged DIP switches. The switch blocks are located on the board below the calibration potentiometers.
To set a channel to a particular range, read the switch positions as UP or DN (down) from left to right in the row beside the range you desire. For example, the ±5V range is: UP>DN>DN>UP>DN. 3.6 Installing the CIO-DAC## in the Computer Turn the power off.
3.9 Signal Connection The analog outputs of the CIO-DAC## are two-wire hookups. A signal, labeled D/A # OUT on the connector diagram below, and a Low Level Ground (LLGND). The low level ground is an analog ground and is the ground reference which should be used for all analog hookups.
3.10 Connector Diagram The CIO-DAC## connector is a 37-pin D-type connector accessible from the rear of the PC through the expansion backplate. The connector accepts female 37-pin D type connectors, such as those on the C37FF-2, 2 foot cable with connectors.
4 REGISTER ARCHITECTURE The CIO-DAC## is a simple board to understand. All control and data is read/written with simple I/O read and write commands. No interrupt or DMA control software is required. Thus, the board's functions are easy to control directly from BASIC, C or PASCAL.
In summary form, the registers and their function are listed in the following table. Each register has eight bits which can constitute a byte of data or eight individual read/write functions. The CIO-DAC08 has 8 pairs of register (Base + 0 through Base + 15) and the CIO-DAC16 has 16 pairs of register (Base + 0 through Base + 31).
4.2 Output Transfer Functions To program a DAC, you must select the output you desire in volts, then apply a transfer function to that value. The transfer function for code = output is: The UNIPOLAR t.
5 SPECIFICATIONS POWER CONSUMPTION CIO-DAC16 +5V supply 435 mA typical, 525 mA m ax +12V supply 140 mA typical, 180 mA m ax − 12V supply 80 mA typical, 105 mA max CIO-DAC08 +5V supply 435 mA typical.
Update DACs individually or simultaneously (jumper-selectable by pairs) DAC output state on power up and reset undefined ENVIRONMENTAL Operating temperature range 0 to 70°C Storage temperature range .
For your notes. 14.
EC Declaration of Conformity 8 Channel analog output board CIO-DAC08 16 Channel analog output board CIO-DAC16 Description Part Number to which this declaration relates, meets the essential requirement.
OMEGA Engineering Inc. One OMEGA Drive , Stamford , Ct 06801 ( 800 ) 872-9436 E-mail: info@ omega .com www. omega .com.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Omega Engineering CIO-DAC16 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Omega Engineering CIO-DAC16 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Omega Engineering CIO-DAC16, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Omega Engineering CIO-DAC16 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Omega Engineering CIO-DAC16, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Omega Engineering CIO-DAC16.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Omega Engineering CIO-DAC16. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Omega Engineering CIO-DAC16 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
