Acces PCI-DIO-24H Guia do Utilizador

User's Guidehttp://www.omega.come-mail: [email protected]/CTR3

3.3 SIGNAL CONNECTION CONSIDERATIONSAll the digital outputs and inputs on the PCI-DIO24 as well as the counter/timer sig-nals of the PCI-DIO24H/CTR3 c

5.4 INPUT PORTSIn 82C55 mode 0 configuration, ports configured for input read the state of the inputlines at the moment the read is executed, transit

4 SOFTWARE Due to the complex and somewhat unpredictable nature of WINDOWS 95 control ofPlug-and-Play addresses, we highly recommend that users t

The registers and their function are summarized in the following table. A moredetailed description of each register is included in subsequent sections

5.1 BOARD CONTROL REGISTERS5.1.1 INTERRUPT STATUS/CONTROLBADR1 + 4C (hex)READ/WRITEINTEINT-POLINTxxxPCIINTxx0123456731:8This register is 32-bits in

one of the resistors in a circuit is proportional to the voltage across the total resistancein the circuit. The trick to using a voltage divider is

7.2 TTL TO SOLID STATE RELAYSMany applications require digital outputs to switch AC and DC voltage motors on andoff and to monitor AC and DC voltages

The pull-up resistor provides a reference to +5V while its value of 2200 ohmsrequires only 2.3 mA of drive currentIf the 82C55 is reset and enters hig

7 ELECTRONICS AND INTERFACING This short, simple introduction to the electronics most often needed by digital I/Oboard users covers a few key con

2 QUICK START & INSTALLATION The installation and operation of all three of the PCI-DIO24 series boards is verysimilar. Throughout this manua

6.3 PCI-DIO24H/CTR3Digital Input / OutputDigital Type 8255 emulation, Mode 0Output: 74S244Input: 74LS373Configuration 2 banks of 8, 2 banks of 4

InstaCal selects and sets the I/O address from the range of available addresses. Theaddress and other information is stored in the configuration file

6 SPECIFICATIONS 6.1 PCI-DIO24Digital Input / OutputDigital Type (Digital I/O connector) 82C55Configuration 2 banks of 8, 2 banks of 4, program-