Omega Engineering OME-A8111 manual Digital I/O, CN3

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2.5 Digital I/O

The OME-A-8111 provides 16 digital input channels and 16 digital output channels. All levels are TTL compatible. The connections diagram and block diagram are given below:

	Output Latch Register
Base+D	Read	CN3
	Read

D0...D7		1...8	TTL	DO
		1...8	TTL	DO
	D0...D7	17...18		DGND
		17...18		DGND
	D8...D15	DGND
	D8...D15
		9...16
				OME-DB-16R
Base+E	Read			16-Channel Isolated
				16-Channel Isolated
	Output Latch Register			Input Board
				(Option)
		OME-A-8111

Input Buffer Register

Base+6

Read

D0...D7

D0...D7

D8...D15

Base+7 Read

Input Buffer Register

OME-A-8111

CN2

1...8

17...18

DGND

Strobe 20

9...16

TTL	DI

DGND

OME-DB-16P

16-Channel Isolated

Input Board

(Option)

OME-A-8111 Hardware Manual (ver.1.1, Jul/2003)

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Contents User’sGuide Mexico CanadaBenelux Czech RepublicOME-A-8111 Table of Contents Calibration General Description FeaturesPower Consumption SpecificationsAnalog Inputs 3 A/D ConverterDA Converter Digital I/OInterrupt Channel Programmable Timer/Counter Product Check ListApplications Board Layout Hardware ConfigurationDefault base address is I/O Base Address Setting1 JP1 D/A Internal Reference Voltage Selection Jumper SettingAddress Read Write I/O Register Address2 A/D Input Buffer Register 8254 Counter4 D/I Input Buffer Register 3 D/A Output Latch Register6 A/D Gain Control Register Clear Interrupt Request7 A/D Multiplex Control Register SI2 SI1 SI0 8 A/D Mode Control Register9 A/D Software Trigger Control Register 10 D/O Output Latch Register CN3 Digital I/OCounter 8254 Timer/CounterSec A/D ConversionPacer Trigger Mode If switching from one channel to the next sec1 A/D conversion flow 2 A/D Conversion Trigger Modes3 A/D Transfer Modes Using software trigger and polling transferD/A Conversion Signal Shielding Analog Input Signal ConnectionCN1 Analog input/Analog output/Connect Pin Assignment Pin AssignmentCN3 Analog input/Analog output/Connect Pin Assignment CN2 Analog input/Analog output/Connect Pin AssignmentOME-CA-4002 Daughter BoardOME-DB-16P OME-DB-16RCalibration VR Description CalibrationDI/O Testing D/A Calibration StepsA/D Calibration Steps WARRANTY/DISCLAIMER Temperature