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Related Manuals for Advantech PCI-1750
Summary of Contents for Advantech PCI-1750
- Page 1 User Manual PCI-1750 32-ch Isolated Digital I/O Card...
- Page 2 No part of this manual may be reproduced, copied, translated or transmitted in any form or by any means without the prior written permission of Advantech Co., Ltd. Information provided in this manual is intended to be accurate and reliable. How- ever, Advantech Co., Ltd.
- Page 3 This product has passed the CE test for environmental specifications when shielded cables are used for external wiring. We recommend the use of shielded cables. This kind of cable is available from Advantech. Please contact your local supplier for ordering information.
- Page 4 REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED BY THE MANUFACTURER, DISCARD USED BATTERIES ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS. The sound pressure level at the operator's position according to IEC 704-1:1982 is no more than 70 dB (A). PCI-1750 User Manual...
- Page 5 Safety Precaution - Static Electricity DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech disclaims all responsibility for the accuracy of any statements contained herein.Safety Precaution - Static Electricity Follow these simple precautions to protect yourself from harm and the products from damage.
- Page 6 PCI-1750 User Manual...
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Page 7: Table Of Contents
Chapter Installation...........5 Initial inspection..................6 Unpacking ....................6 Location of Connectors ................6 Figure 2.1 Board Connections ............. 6 PCI-1750 Block Diagram................7 Figure 2.2 Block Diagram ............7 Connector Pin Assignments ..............8 Installation Instructions................9 Chapter Operation..........11 Operation ....................12 Isolated Digital I/O Ports ................. - Page 8 MODE 5 – Hardware triggered strobe ........23 Counter operations ................. 23 A.3.1 Read/write operation..............23 A.3.2 Counter read-back command ............. 23 A.3.3 Counter latch operation .............. 23 Appendix B Register Format of PCI-1750.... 25 Register Format of PCI-1750 ..............26 PCI-1750 User Manual viii...
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Page 9: Chapter 1 Overview
Chapter Overview... -
Page 10: Introduction
2500 VD C the PCI-1750 is ideal for industrial applications where high- voltage protection is required. The card's 16 bits are divided into two 8-bit I/O ports. This makes the PCI-1750 very easy to program. This card also offers dual interrupt handling capability, providing the user more flexibility in using the counter, timer, digital inputs or a combination to gen- erate interrupts to the PC. - Page 11 One 2-pin terminal block for extended ground Power consumption: 5 V @ 850 mA (Typical) 5 V @ 1.0 A (Max.) Operating temperature: 0 ~ 70ºC (32ºF ~ 158ºF) Storage temperature: -20 ~ 80ºC (-4ºF ~ 176ºF) Humidity: 5% ~ 95% non-condensing PCI-1750 User Manual...
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Page 13: Chapter 2 Installation
Chapter Installation... -
Page 14: Initial Inspection
Initial inspection Before starting to install the PCI-1750, make sure there is no visible damage on the card. We carefully inspected the card both mechanically and electrically before ship- ment. It should be free of marks and in perfect order on receipt. -
Page 15: Pci-1750 Block Diagram
PCI-1750 Block Diagram IDI 0~7 IDI 8~15 IDO 0~7 IDO 8~15 ISO DI 0 ISO DI 8 Interrupt Control Logic Counter Counter 2 ISO DI 15 Figure 2.2 Block Diagram PCI-1750 User Manual... -
Page 16: Connector Pin Assignments
IDO 8 ~ IDO 15 Counter2: Input pin of isolated counter (shared with IDI 15) Warning! Be careful when wiring digital input lines. Never apply a negative voltage to the isolated input pins, as this may damage the PCI-1750. PCI-1750 User Manual... -
Page 17: Installation Instructions
Save the screw to secure the interface card retain- ing bracket. Carefully grasp the upper edge of the PCI-1750. Align the hole in the retaining bracket with the hole on the expansion slot and align the gold striped edge con- nector with the expansion slot socket. - Page 18 PCI-1750 User Manual...
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Page 19: Chapter 3 Operation
Chapter Operation... -
Page 20: Operation
Isolated Digital I/O Ports 3.2.1 Introduction The PCI-1750 has 16 isolated digital input channels designated IDI 0 ~ IDI 15, and 16 isolated digital output channels designated IDO 0 ~ IDO 15. Data can be read from or written to the card's channels. -
Page 21: Isolated Inputs
Warning! Be careful when wiring digital input cables. Never apply a negative volt- age to an isolated input pin, as this may damage the PCI-1750. Note for wet contacts: A malfunction might occur in cases where the internal resis- tance of a voltage source under wet contacts is significant (>5 kW). It is advisable to connect a parallel 5 kW, 0.5 W resistor to avoid a voltage rise inside the voltage... -
Page 22: Isolated Outputs
CN5 to shunt the current to the external voltage source ground. Figure 3.2 shows how to connect an external output load to the card's isolated out- puts. Figure 3.2 Connecting an external output load PCI-1750 User Manual... -
Page 23: Timer And Counter
8254 chip is a 16-bit high-speed (1 MHz) isolated event counter (it shares a pin with isolated IDI 15). The block diagram of the timer/counter system of PCI-1750 is shown in Figure 3.3. Timers 0 and 1 are usually set in mode 3 (square wave genera- tor) to generate periodic watchdog interrupts. -
Page 24: Interrupt Function
Four input channels (IDI 0, IDI 4, IDI 8 and IDI 12) and the output of Timer 1 and Counter 2 are connected to the interrupt circuitry. The “Interrupt Control Register” of the PCI-1750 controls how the combination of the six signals generates an interrupt. Two interrupt request signals, designated “interrupt group 0" and “interrupt group 1", can be generated at the same time, and then the software can service these two request signals by ISR. -
Page 25: Interrupt Source Control
“triggering edge control” bit in the interrupt control register, as shown in Table 3.3. Table 3.3: Triggering edge control bit values E0 or E1 Triggering edge of interrupt signal Rising edge trigger Falling edge trigger PCI-1750 User Manual... -
Page 26: Interrupt Flag Bit
This bit must be cleared in the ISR to service the next incom- ing interrupt. Table 3.4: Interrupt flag bit values F0 & F1 Interrupt status Read Interrupt No Interrupt Write Clear Interrupt Don’t Care PCI-1750 User Manual... -
Page 27: Appendix A Function Of 8254 Counter Chip
Appendix Function of 8254 Counter Chip... -
Page 28: The Intel 8254
The 8254 has a maximum input clock frequency of 10 MHz. The PCI-1750 provides 10 MHz input frequencies to the counter chip from an on-board crystal oscillator. On the PCI-1750, the 8254 chip's Timer 0 and Timer 1 are cascaded to be a 32-bit programmable timer. - Page 29 The data format of the counter read/write register then becomes: BASE+24/25/26(Dec) Status read-back mode Value OUT Current state of counter output Null count is 1 when the last count written to the counter register has been loaded into the counting element PCI-1750 User Manual...
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Page 30: Counter Operating Modes
(following the reload) decrements the counter by 3. Subsequent clock pulses decrement the count by two until time out, then the whole process is repeated. In this way, if the count is odd, the output will be high for (N+1)/2 counts and low for (N-1)/2 counts. PCI-1750 User Manual... -
Page 31: Mode 4 - Software Triggered Strobe
Set bits SC1 and SC0 to 1 and CNT = 0. The second method has the advan- tage of operating several counters at the same time. A subsequent read operation on the selected counter will retrieve the latched value. PCI-1750 User Manual... - Page 32 PCI-1750 User Manual...
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Page 33: Register Format Of
Appendix Register Format of PCI-1750... -
Page 34: Register Format Of Pci-1750
Register Format of PCI-1750 Base Function Address + Read Write (Decimal) IDI 0 ~7 IDI 0 ~ 7 IDI 8 ~ 15 IDI 8 ~ 15 2~23 Reserved Reserved 8254 Counter 0 8254 Counter 0 8254 Counter 1 8254 Counter 1... - Page 35 PCI-1750 User Manual...
- Page 36 No part of this publication may be reproduced in any form or by any means, electronic, photocopying, recording or otherwise, without prior written permis- sion of the publisher. All brand and product names are trademarks or registered trademarks of their respective companies. © Advantech Co., Ltd. 2011...
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