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OME-A822PG manual
1
1
63
63
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63 pages, 1.5 Mb
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U
ser
’
s Guide
OME-A822PG
ISA-Bus
Multi-Functional Board
Hardware Manual
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Contents
Main
Servicing North America:
USA:
Canada:
For immediate technical or application assistance:
USA and Canada:
OME-A-822PGH/PGL
Page
Page
1. Introduction
1.1 General Description
1.2 Features
1.3 Specifications
1.3.1 Power Consumption :
1.3.2 Analog Inputs
Caution: refer to Sec. 2.9 first
1.3.3 A/D Converter
1.3.4 DA Converter
1.3.5 Digital I/O
1.3.6 Interrupt Channel
1.3.7 Programmable Timer/Counter
1.3.8 Direct Memory Access Channel (DMA)
1.4 Applications
1.5 Product Check List
Attention !
2. Hardware Configuration
2.1 Board Layout
2.2 I/O Base Address Setting
SW1 : BASE ADDRESS
2.3 Jumper Settings
2.3.1 JP1 : D/A Internal Reference Voltage Selection
2.3.2 JP2 : D/A Int/Ext Ref Voltage Selection
2.3.3 JP3 : Single-ended/Differential Selection
Refer to Sec. 2.9 first.
2.3.4 JP4 : A/D Trigger Source Selection
2.3.5 JP5 : Interrupt Level Selection
2.3.6 JP6 : User Timer/Counter Clock Input Selection
NOTE : if you use A-822_Delay(), the JP6 jumper must be set to internal 2M clock.
2.3.7 JP7 : DMA DACK Selection, JP8 : DMA DRQ Selection
2.4 I/O Register Address
2.4.1 8254 Counter
2.4.2 A/D Input Buffer Register
2.4.3 D/A Output Latch Register
NOTE : Send the low 8 bits first, then send the high 4 bits.
2.4.4 D/I Input Buffer Register
2.4.5 Clear Interrupt Request
2.4.6 A/D Gain Control Register
NOTE :
OME-A-822PGL GAIN CONTROL CODE TABLE
OME-A-822PGH GAIN CONTROL CODE TABLE
2.4.7 A/D Multiplex Control Register
2.4.8 A/D Mode Control Register
2.4.9 A/D Software Trigger Control Register
2.4.10 D/O Output Latch Register
2.5 Digital I/O
2.6 8254 Timer/Counter
2.7 A/D Conversion
2.7.1 A/D conversion flow
2.7.2 A/D Conversion Trigger Modes
2.7.3 A/D Transfer Modes
2.7.4 Using software trigger and polling transfer
2.8 D/A Conversion
send the low byte data first, then send the high byte data
2.9 Analog Input Signal Connection
Page
Page
Figure 4
Signal Shielding
2.10 Using OME-DB-8225 CJC Output
3. Connector
3.1 CN1/CN2/CN3 Pin Assignment
SINGLE-ENDED SIGNAL MODE
DIFFERENTIAL SIGNALS
3.2 Daughter Board
3.2.1 OME-DB-8225
3.2.2 OME-DB-37
3.2.3 OME-DB-16P
3.2.4 OME-DB-16R
4. Calibration
4.1 Description of Variable Resistors
4.2 D/A Calibration
4.3 A/D Calibration
5. Diagnostic Utility
5.1 Introduction
Page
5.2 Running The Diagnostic Utility
5.2.1 Setup
Page
5.2.2 CALIBRATION
5.2.3 FUNCTION TEST
Page
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5.2.4 SPECIAL TEST
Page
WARRANTY/DISCLAIMER
RETURN REQUESTS/INQUIRIES
M4031/0104
Where Do I Find Everything I Need for Process Measurement and Control? OMEGAOf Course!
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TEMPERATURE
PRESSURE, STRAIN AND FORCE
FLOW/LEVEL
pH/CONDUCTIVITY