4-axis Quadrature Encoder PCI-1784 and Counter Card Features § Four 32-bit up/down counters § Single ended or differential inputs § Pulse/direction and up/down counter § x1, x2, x4 counts for each encoder cycle § Optically isolated up to 2,500 V DC § 4-stage digital filter with selectable sampling rate § On board 8-bit timer with wide range time-base selector § Multiple interrupt sources for precision application § 4 isolated digital input § 4 isolated digital output § Board ID Introduction The PCI-1784 is a 4-axis quadrature encoder and counter add-on card for PCI bus. The card includes four 32-bit quadruple AB phase encoder counters, 8-bit timer with multi range time-base selector and 4 isolated digital inputs as well as 4 isolated digital outputs. Its flexible interrupt sources are suitable for motor control and position monitoring. Isolated Digital Output Specifications § Number of Channel 4 Encoder Input § Optical Isolation 2,500 V DC § Response Time 20 ms (max.) Number of Axis 4 (independent) § Supply Voltage TTL level Resolution 32-bit § Sink/Source Current 50 mA max./channel w/ Digital Filter 1.0 MHz Max. Quadrature Input Frequency w/o Digital Filter 2.0 MHz Interrupt Digital Filter 4 stage § Source Counter overflow, Counter underflow, Index input, Drive Type Single-ended or differential Timer, Digital input Counter Mode Quadrature, Up/Down, Count/Direction Counter Latch Optical Isolation 2,500 V DC Max. Input Pulse Frequency x 1, x 2, x 4 § Source Software, Timer, Index input, Digital input Sample Clock Frequency 8, 4, 2, or 1 MHz General Timer I/O Connector Type 37-pin D-sub female § Resolution 8-bit Dimensions 175 mm x 100 mm (6.9” x 3.9”) Typical +5 V @ 200 mA § Time Base 50 K, 5 K, 500, 50, 5 Hz Power Consumption Max. +5 V @ 450 mA Isolated Digital Input 0 ~ 60°C (32 ~ 140°F) Operation (refer to IEC 68-2-1,2) Temperature Number of Channel 4 Storage -20 ~ 70°C (-4 ~ 158°F) Optical Isolation 2,500 V DC Relative Humidity 5~95%RH non-condensing (refer to IEC 68-2-3) Opto-isolator Response Time 25 ms Certification CE certified Over-voltage Protect 70 V DC VIH (max.) 30 V DC Input Voltage VIH (min.) 10 V DC Ordering Information VIL (max.) 3 V DC § PCI-1784 4-Axis Quadrature Encoder and Counter Card 10 V 1.7 mA (typical) DC § PCL-10137H-1 High-speed DB-37 cable assembly, 1 m 12 V 2.1 mA (typical) DC § PCL-10137H-3 High-speed DB-37 cable assembly, 3 m Input Current 24 V 4.4 mA (typical) DC § ADAM-3937 DB-37 Wiring Terminal Board for DIN-rail mounting 48 V 9.0 mA (typical) DC 50 V 9.4 mA (typical)+ DC Plug-in DA&C Cards Online Download www.advantech.com/products 5-38 PCI-1784 1 Feature Details Pin Assignments IPPC & AWS Features Encoder Interface Each channel includes a decoding circuit for incremental quadrature encoding. Inputs EGND 1 2 20 CH0A- CH0A+ 2 TPC accept either single-ended or differential signals. Quadrature input works with or without 21 CH0B- CH0B+ 3 an index, allowing linear or rotary encoder feedback. 22 CH0Z- CH0Z+ 4 23 CH1A- CH1A+ 5 24 CH1B- 3 Counters CH1B+ 6 25 CH1Z- FPM CH1Z+ 7 The PCI-1784 has four independent 32-bit counters. The maximum quadrature input rate 26 CH2A- CH2A+ 8 27 CH2B- is 2 MHz, and the maximum input rate in counter mode is 8 MHz. You can individually CH2B+ 9 28 CH2Z- configure each counter for quadrature decoding, pulse/direction counting or up/down CH2Z+ 10 4 29 CH3A- CH3A+ 11 ATM counting. 30 CH3B- CH3B+ 12 231 CH3Z- CH3Z+ 13 Digital Input and Interrupts 32 EGND IDICOM 14 33 IDI1 5 IDI0 15 The PCI-1784 provides four digital input channels. Each channel accepts digital input 34 IDI3 DA&C IDI2 16 35 EGND as an index input for a rotary encoder or as a home sensor input for a linear encoder. The EGND 17 36 IDO1 card can generate an interrupt to the system based on a signal from its digital inputs, IDO0 18 37 IDO3 IDO2 19 6 overflow/underflow and overcompare/undercompare of its counters, or on a programmed cPCI time interval. It can repeatedly generate interrupts at any time interval you specify, from 20 microseconds to 51 seconds. These interrupts let you precisely monitor the speed of a control system. 7 ADAM-3000 Block Diagram Flexible Digital Output function The PCI-1784 provides four digital output channels. Each channel accepts digital output 8 as a normal TTL output for a rotary encoder, or as an indicated output with pulse/level eConnectivity mode for a linear encoder. The PCI-1784 can generate an indicated output based on a signal from overcompare/undercompare of its counters. The pulse width of an indicated output depends on the counter clock or clear interrupt. 9 ICOM Special Shielded Cable for Noise Reduction The PCL-10137H shielded cable is specially designed for the PCI-1784 for reducing 10 noise. Its wires are all twisted pairs, and the input signals and output signals are separately Software shielded, providing minimal cross talk between signals and the best protection against EMI/EMC problems. 11 Board ID UNO-2000/3000 The PCI-1784 has a built-in DIP switch that helps define each card’s ID when multiple PCI- 1784 cards have been installed on the same PC chassis. The board ID setting function is 12 very useful when users build their system with multiple PCI-1784 cards. With correct Board VBOX ID settings, you can easily identify and access each card during hardware configuration and software programming. 13 ADAM-4000 14 ADAM-5000 15 ADAM-6000 16 ADAM-8000 Plug-in DA&C Cards Online Download www.advantech.com/products 5-41