www.omega.com e-mail: [email protected]’s GuideOME-A8111 ISA-BUSMulti-Functional BoardHardware ManualShop online at
2. Hardware Configuration 2.1 Board Layout BB ADS-774ON123456JP1JP28111SW1987654()ABASS ADDRESSA1P1A311219 20CN3 D/C
2.2 I/O Base Address Setting The OME-A-8111 occupies 16 consecutive locations in I/O address space. The base address is set by DIP switch SW1. The
The PC I/O port mapping is given below. ADDRESS DEVICE ADDRESS DEVICE 000-1FF PC reserved 320-32F XT Hard Disk 200-20F Game/control 378-37F Pa
2.4 I/O Register Address The OME-A-8111 occupies 16 consecutive PC I/O addresses. The following table lists the registers and their locations. Ad
2.4.1 The 8254 Counter The 8254 Programmable timer/counter has 4 registers from Base+0 through Base+3. For detailed programming information about t
2.4.3 D/A Output Latch Register (WRITE) Base+4: Channel 1 D/A Low Byte Data Format Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 D7 D6
2.4.5 Clear Interrupt Request (WRITE) Base+8: Clear Interrupt Request Format Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 X X X X X X
2.4.7 A/D Multiplex Control Register (WRITE) Base+A : A/D Multiplexer Control Register Format Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
2.4.8 A/D Mode Control Register (WRITE) Base+B : A/D Mode Control Register Format Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 X SI2
The pacer trigger can control the sampling rate very precisely. So the converted data can be used to reconstruct the waveform of the analog input sign
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2.4.10 D/O Output Latch Register (WRITE) Base+D: D/O Output Latch Low Byte Data Format Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 D
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 diag
2.6 8254 Timer/Counter The 8254 Programmable timer/counter has 4 registers from Base+0 through Base+3. For detailed programming information about 825
2.7 A/D Conversion This section explains how to perform A/D conversions. The A/D conversion can be performed by software trigger by pacer trigger. A
2.7.1 A/D conversion flow Then the user must decide which A/D conversion mode will be used. The software driver supports three different modes. Th
2.7.3 A/D Transfer Modes OME-A-8111 supports two transfer modes. 1 : polling transfer : This mode can be used with all trigger modes. Detailed inf
2.8 D/A Conversion The OME-A-8111 provides two 12-bit D/A converters. Before using the D/A conversion function, user should notice the following iss
2.9 Analog Input Signal Connection FIG 1: Connecting analog input configuration A/D CHn OME-A-8111 AGND A/D CH0 Es Signal Shielding
2.10 Pin Assignment The OME-A-8111 provides three connectors. Connect 1, CN1 functions for analog input & analog output input. Connector
CN2: Analog input/Analog output/Connect Pin Assignment. Pin Number Description Pin Number Description 1 Digital Input 0/TTL 2 Digital Input 1/TT
OME-A-8111 Hardware User’s Manual OME-A-8111 Hardware Manual (ver.1.1, Jul/2003) 1
2.11 Daughter Board The OME-A-8111 can be connected with many different daughter boards. The function of these daughter boards is described as follow
3. Calibration The OME-A-8111 is calibrated to its best state of operation. For environments with large vibration, recalibration is recommended. Bef
3.2 D/A Calibration Steps 1. Run A8111CAL.EXE 2. Connect D/A channel0,, pin 30 of CN1 to DVM 3. Adjust VR1 until DVM=5.0000V 4. Press “Enter&q
WARRANTY/DISCLAIMEROMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for aperiod of 13 months from date of
M4029/0104Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course!Shop online at www.omega.comTEMPERATUREThermocouple
Table of Contents 1. Introduction_________________________________________________________ 4 1.1 General Description ________________________
2.7.2 A/D Conversion Trigger Modes _______________________________________________ 22 2.7.3 A/D Transfer Modes________________________________
1. Introduction 1.1 General Description The OME-A-8111 is a high performance, multifunction (analog and digital I/O) board for the PC AT compatib
1.3 Specifications 1.3.1 Power Consumption z +5V @ 300 mA maximum z +12V @ 60 mA maximum z -12V @ 30 mA maximum z Operating temperature: 0
1.3.4 DA Converter z Channels : 1 independent z Type : 12-bit multiplying , Analog device AD-7948 z Linearity : ± 1/2 bit z Output Range : 0~5 V
1.3.7 Programmable Timer/Counter z Type : 82C54 -8 programmable timer/counter z Counters: The counter1 and counter2 are cascaded as a 32-bit pacer
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