Advantech PCI-1784 specifications Appendix A. Specifications, Encoder Output, Timer

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Appendix A. Specifications

Encoder Output

Number of Axis			4 (independent)
Resolution			32-bit
Max. Quadrature	w/ Digital Filter				1.0 MHz
Max. Quadrature	w/o Digital
Input Frequency	w/o Digital				2.0 MHz
Input Frequency	Filter				2.0 MHz
	Filter
Digital Filter			4 stage
Drive Type		Single-ended or differential
Counter Mode	Quadrature, Up/Down, Count/Direction
Optical Isolation			2500 VDC
Max. Input Pulse			x 1, x 2, x 4
Frequency			x 1, x 2, x 4
Frequency
Sample Clock			8, 4, 2, or 1 MHz
Frequency			8, 4, 2, or 1 MHz
Frequency
Timer
Resolution			8-bit
Time base		50 K, 5 K, 500, 50, 5 Hz
Isolated Digital Input
Number of Channel					4
Optical Isolation			2500 VDC
Opto-isolator response time				25∝ s
Over-voltage Protect				70 VDC
Input Voltage		VIH (max.)			30 VDC
Input Voltage		VIH (min.)			10 VDC
		VIL (max.)			3 VDC
Input Current		10 VDC			1.7 mA (typical)
Input Current		12 VDC			2.1 mA (typical)
		24 VDC			4.4 mA (typical)
Isolated Digital Output
Number of Channel					4
Optical Isolation			2500 VDC
Response time			20 ∝		s (max.)
Supply Voltage			TTL level
Sink/Source Current			50 mA max./channel

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Contents Page Page Contents Appendix D. Operation Encoder Interface FeaturesIntroduction Digital Input and Interrupts CountersFlexible Digital Output function Special Shielded Cable for Noise ReductionBoard ID Applications Installation GuideInstallation Flow Chart Register-level Programming Software OverviewDevice Drivers Programming Tools Device Drivers Programming RoadmapProgramming with Device Drivers Function Library Troubleshooting Device Drivers ErrorWiring Boards AccessoriesWiring Cable Unpacking InstallationPage Setup Screen of Advantech Automation Software Driver InstallationSelect the Individual Drivers option Hardware InstallationPage Device name listed on the Device Manager Board selection Device Setup & Configuration‘Setup’ dialog box Setting Up and configure the deviceOperation dialog box Switch and Jumper Settings Signal ConnectionsOverview Names of Jumpers Function descriptionBoard ID setting SW1 Pin Assignment Signal ConnectionsConnector Signal Description Single ended Outputs Encoder Quadrature encoder inputQuadrature encoder up/down counter input connections Isolated digital output Isolated digital inputEncoder Output Appendix A. SpecificationsTimer General InterruptCounter Latch ADDRESS, Control and Data BUS Appendix B. Block DiagramPage I/O Port Address Map Appendix C. Register Structure and Format+ HEX Table C-1 PCI-1784 register format Part1CH Clock Control Table C-2 PCI-1784 Register for counter 0/1/2/3 mode Counter 0/1/2/3 mode BASE+00/04/08/0CHDI0 Table C-3 PCI-1784 Register for counter 0/1/2/3 latch data Counter 0/1/2/3 latch data BASE+00/04/08/0CHTable C-4 PCI-1784 Register for counter 0/1/2/3 compare data Counter 0/1/2/3 compare data BASE+10/14/18/1CHTable C-5 PCI-1784 Register for interrupt control Interrupt control register BASE+20HTable C-6 PCI-1784 Register for interrupt status Interrupt status register BASE+20HTable C-7 PCI-1784 Register for clock control Clear Interrupt BASE+24HTable C-8 PCI-1784 Register for clear interrupt Table C-9 PCI-1784 Register for software latch Software latch BASE+28HTable C-10 PCI-1784 Board ID data Board ID BASE+28HTable C-11 PCI-1784 Register for reset counter Reset counter BASE+2CHTable C-12 PCI-1784 Register for digital output Digital output BASE+30HTable C-13 PCI-1784 Register for digital input/output Digital input/output BASE+30HPage Quadrature encoder introduction Appendix D. OperationQuadrature input counter mode Mode Maximum input rate 8MHz 4MHz 2MHz 1MHzCounter modes Single-ended vs. differential inputPulse/direction mode Pulse modeDisabled mode Digital noise filterClock frequency Maximum width Latch modeLatch Index latchTimer function Counter reset valueInterrupt function