Assessments - 3, GPA: 4.3
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The PCI-1784 satisfies both these needs by providing jumper JP2. Depending on the application, this capability may allow counter value and the isolated digital outputs to be "OFF" without requiring a complete shutdown of processes controlled by the card. Complete loss of power to the chip clears the chip memory. Thus, no matter how JP2 is set, if the power to the PCI-1784 is disconnected, the counter value and the isolated digital output initial power-on state will be "OFF". Board ID setting (SW1) ID3 ID2 ID1 ID0 Board ID 1 1 1 1 0 1 1 1 0 1 1 1 0 1 2 1 1 0 0 3 1 0 1 1 4 1 0 1 0 5 1 0 0 1 6 1 0 0 0 7 0 1 1 1 8 0 1 1 0 9 0 1 0 1 10 0 1 0 0 11 0 0 1 1 12 0 0 1 0 13 0 0 0 1 14 0 0 0 0 15 Note: On: 1, Off: 0 20 3.3 Signal Connections Pin Assignment Figure 3-2 shows the pin assignments for the 37-pin I/O connector on the PCI-1784. EGND 1 20 CH0A CH0A+ 2 21 CH0B CH0B+ 3 22 CH0Z CH0Z+ 4 23 CH1A CH1A+ 5 24 CH1B CH1B+ 6 25 CH1Z CH1Z+ 7 26 CH2A CH2A+ 8 27 CH2B CH2B+ 9 28 CH2Z CH2Z+ 10 29 CH3A CH3A+ 11 30 CH3B CH3B+ 12 31 CH3Z CH3Z+ 13 32 EGND IDI COM 14 33 IDI1 IDI0 15 34 IDI3 IDI2 16 35 EGND EGND 17 36 IDO1 IDO0 18 37 IDO3 IDO2 19 . Fig. 3-2 I/O connector pin assignments for the PCI-1784 I/O Connector Signal Description Table 3-2 I/O Connector Signal Description Signal Name Reference Direction Description EGND --External Ground. CH<0..3>A+ EGND Input Channel <0..3> A differential positive-input. CH<0..3>AEGND Input Channel <0..3> A differential negative-input. CH<0..3>B+ EGND Input Channel <0..3> B differential positive-input. CH<0..3>BEGND Input Channel <0..3> B differential negative-input. CH<0..3>Z+ EGND Input Channel <0..3> Z differential positive-input. CH<0..3>ZEGND Input Channel <0..3> Z differential negative-input. IDI<0..3> IDI COM Input Isolated Digital Input, Channels 0 through 3. IDI COM --Common input of the Isolated Digital Input. IDO<0..3> EGND Output Isolated Digital Output, Channels 0 through 3. EGND --External Ground. 21 Quadrature encoder input Single ended outputs of Encoder ABIGND PCI-1784 connector CHnA+CHnB+CHnZ+EGND Differential outputs of Encoder or Line driver GNDA+A-B+B-I+I- PCI-1784 connector EGNDCHnA+CHnA-CHnB+CHnB-CHnZ+CHnZ- Pulse/Direction Counter PULSEDIRGND PCI-1784 connector CHnA+CHnB+EGND Figure 3-3: Quadrature encoder input connections 22 Up/Down Counter UPDNGND PCI-1784 connector CHnA+CHnB+EGND Two_Pulse Up Counter UPDNGND PCI-1784 connector CHnA+CHnB+EGND Two_Pulse Down Counter UPDNGND PCI-1784 connector CHnA+CHnB+EGND Figure 3-4: Quadrature encoder (up/down counter) input connections Note: . In case you want to connect the Up/Down counter signal into the PCI-1784, be sure that all the signals must be connected. The floating connection will cause unexpected result. 23 Isolated digital input External Internal DC (5-30V) VCC GND IDI0~IDI3 IDI COM Figure 3-4: Isolated digital input connections Isolated digital output Internal External TTL level TTL level Isolated Protection Circuit IDO0~IDO3 EGND Figure 3-5: Isolated digital output connections 24 Appendix A. Specifications Encoder Output Number of Axis 4 (independent) Resolution 32-bit Max. Quadrature Input Frequency w/ Digital Filter 1.0 MHz w/o Digital Filter 2.0 MHz Digital Filter 4 stage Drive Type Single-ended or differential Counter Mode Quadrature, Up/Down, Count/Direction Optical Isolation 2500 VDC Max. Input Pulse Frequency x 1, x 2, x 4 Sample Clock Frequency 8, 4, 2, or 1 MHz 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 VIH (max.) 30 VDC Input Voltage VIH (min.) 10 VDC VIL (max.) 3 VDC 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 25 Interrupt Source Counter overflow, Counter underflow, Index input, Compare, Timer, Digital input Counter Latch Source Software, Timer, Index input, Digital input General I/O Connector Type 37-pin D-sub female Dimensions 175 mm x 100 mm (6.9" x 3.9") Power Consumption Typical +5 V @ 200 mA Max. +5 V @ 450 mA Temperature Operation 0~60°C (32~140°F) (refer to IEC 68-2-1,2) Storage -20~70°C (-4~158°F) Relative Humidity 5~95%RH non-condensing (refer to IEC 68-2-3) Certification CE certified 26 Appendix B. Block Diagram ADDRESS, CONTROL AND DATA BUS PCI INTERFACE 32-BIT MULTI-MODE UP/DOWN COUNTER 32-BIT MULTI-MODE UP/DOWN COUNTER CONTROL UNIT 32-BIT MULTI-MODE UP/DOWN COUNTER 32-BIT UP/DOWN COUNTER COUNTER MODE CONTROL DIGITAL FILTER PROGRAMMABLE TIME-BASE GENERATOR DIFF/ SE ISOLATION INPUT CIRCUIT INTERRUPT CONTROLLER CH.0 PHASE A CH.0 PHASE B CH.0 INDEX CH.1 PHASE A CH.1 PHASE B CH.1 INDEX CH.2 PHASE A CH.2 PHASE B CH.2 INDEX CH.3 PHASE A CH.3 PHASE B CH.3 INDEX DO/I CH.0 DO/I CH.1DO/I CH.2 DO/I CH.3 PCI BUS 27 28 Appendix C. Register Structure and Format ...
Este manual também é adequado para os modelos :Equipamento de rede - PC-LabCard PCI-1784 (264.5 kb)