Measurement-computing PC104-AC5 Uživatelský manuál Strana 1

PC104-AC5DIGITAL I/OUser’s ManualRevision 1October, 2000

3 REGISTER ARCHITECTURE3.1 INTRODUCTIONThe PC104-AC5 contains three data and one control register for the 24 lines of digitalI/O. The first address,

In summary form, the registers and their function are listed on the following table.Within each register are eight bits which may constitute a byte of

3.2.1 Output PortsPorts configured for output hold the output data written to them. This output byte canbe read back by reading a port configured for

Table 3-2. 82C55 Emulation Programming Codes - Mode 0ININININ1559B1111OUTINININ1549A0111INOUTININ153991011OUTOUTININ152980011ININOUTIN147931101OUTINOU

4 SPECIFICATIONSTypical for 25°C unless otherwise specified.Power consumption+5V Operating625 mA typical, 960 mA maxPC104-AC5Digital Input / OutputH

Mechanical103mm wide x 96mm long x 15mm thickCard dimensionsConnector and Pin Out50-pin. Compatible with SSR-PB24 usingC50FE-x cableConnector 11GND50

5 ELECTRONICS AND INTERFACING5.1 INTRODUCTIONThis short introduction to the electronics most often needed by digital I/O board userscovers the follow

The concept of voltage level of a PC104-AC5 in input mode is meaningless. Do notconnect a volt meter to the floating input of an PC104-AC5. It will

A 2.2Kohm, eight-resistor SIP has all its resistors connected on one end to a singlecommon pin. The common pin is marked with a dot and is at one end

In a voltage divider, the voltageacross one of the resistors in acircuit is proportional to thatresistance divided into the totalresistance in the ci

Your new Measurement Computing product comes with a fantastic extra — Management committed to your satisfaction! Thank you for choosing a Measurement

For Attenuation of 5:1 or less, no resistor should be less than 10K.For Attenuation of greater than 5:1, no resistor should be less than 1K.The CIO-TE

For your notes.17

For your notes.18

EC Declaration of ConformityWe, Measurement Computing Corp., declare under sole responsibility, that theproduct:DescriptionPart NumberDigital I/O Boar

Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton, Massachusetts 02766 (508) 946-5100 Fax: (508) 946-9500 E-mail: [email protected]

Table of Contents165.5 LOW PASS FILTERS DE-BOUNCE INPUTS ...145.4 VOLTAGE DIVIDERS ...145.3 TTL TO SOLID STATE RELAYS

This page is blank.

1 INTRODUCTION The PC104-AC5 is a 24-line digital I/O board. The control register which sets thedirection of the I/O ports is identical to an 82

A complete address is constructed by calculating the HEX or decimal number whichcorresponds to all the address bits the board has been instructed to r

2.2 WAIT STATE SELECT (P3)A wait state may be enabled on the PC104-AC5 by selecting the ON position ofheader P3. Enabling the wait state decreases the

2. Remove the cover of your computer. Please be careful not to dislodge any of thecables installed on the boards in your computer as you slide the co

This board is typically used for driving the SSR-PB24 solid state relay rack. For thisapplication, the C50FE-# cable is used.If your application requ