ADLINK PCI-8124-C User Manual

PCI-8124-C

Advanced 4-CH Encoder Card with

High-speed Triggering Function

User’s Manual

Manual Rev. 2.00
Revision Date: April 27, 2009
Part No: 50-11162-1000

Advance Technologies; Automate the World.

Copyright 2009 ADLINK TECHNOLOGY INC.
All Rights Reserved.

The information in this document is subject to change without prior
notice in order to improve reliability , design, and function and does
not represent a commitment on the part of the manufacturer.

In no event will the manufacturer be liable for direct, indirect, spe­cial, incidental, or consequential damages arising out of the use or
inability to use the product or documentation, even if advised of
the possibility of such damages.

This document contains proprietary information protected by copy­right. All rights are reserved. No part of this manual may be repro­duced by any mechanical, elec tronic, or other means in a ny form
without prior written permission of the manufacturer.

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NuDAQ, NuIPC, DAQBench are registered trademarks of ADLINK

TECHNOLOGY INC.
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Table of Contents

Table of Contents..................................................................... i

List of Tables.......................................................................... iv

List of Figures......................................................................... v

1 Introduction ........................................................................ 1

1.1 Features............................................................................... 3

1.2 Specifications....................................................................... 4

1.3 Supported Software............................................................. 7

Programming Library ..................................................... . 7

2 Installation .......................................................................... 9

2.1 Package Contents ............................................................... 9

2.2 PCI-8124-C Outline Drawing ............................................. 10

2.3 PCI-8124-C Hardware Installation..................................... 11

Hardware Configuration ................................................ 11

PCI Slot Selection ...... ... .... ... ... ...................................... 11

Installation Procedures .................................................11

Troubleshooting: ............................... ............................11

2.4 Software Driver Installation................................................ 12

2.5 CN1 Pin Assignments........................................................ 13

2.6 CN2 Pin Assignments: TTL Output.................................... 14

2.7 Board Index Switch Setting................................................ 14

2.8 Default Trigger Level ......................................................... 14

3 Signal Connections.......................................................... 15

3.1 Connector (CN1) Pin Definition ......................................... 16

3.2 Isolated Input Ports (LTC, INCOM).................................... 18

3.3 Isolated Encoder Differential Input..................................... 19

3.4 Isolated Output Ports (TRG, EGND).................................. 20

3.5 TTL Input Ports.................................................................. 22

3.6 TTL Output Ports............................................................... 23

4 Operation Theory ............................................................. 25

4.1 Trigger Board Overview..................................................... 26

Encoder Channel ..........................................................28

Index Input (EZ) ............................................................30

Table of Contents i

Homing with EZ Signal .................................................31

Trigger Pulse Width ......................................................31

Linear Function .............................................................31

FIFO ................................... ................. ................ ..........32

PWM & Mapping ................................. ... ... ... .................32

Digital Filter ...................................................................32

Trigger Counter .............................................................32

4.2 Trigger Board Operation.................................................... 34

Position Comparison .....................................................34

Position Latch ...............................................................35

Linear Function .............................................................35

FIFO Mode ....................................................................36

Timer Function ..............................................................36

4.3 Multiple Boards Operation ................................................. 37

4.4 Interrupt Control.......... .... ... ... ... .......................................... 38

5 TriggerMaster Utility......................................................... 41

5.1 Running TriggerMaster...................................................... 41

5.2 About TriggerMaster.......................................................... 41

5.3 TriggerMaster Form Introduction ....................................... 42

Assign ID Type Dialog ..................................................42

Main Form .................... ... ... .... .......................................43

Display _Status_LinearCMP Form ...............................45

Sketch_of_setting Form ................................................46

Set_TRG_&_TTL_Out Form ............................... ... ... ... .47

Choose_PWM_Source Form ....................... ... .... ... ... ... .48

Set_Linear_Comparator Form ......................................49

Set_CNT_Source Form ................................................50

Encoder_# Mode ..........................................................51

Set_Interrupt_Source Form ..........................................52

Set_Interrupt_Source form ...........................................54

6 Function Library................................................................ 57

6.1 List of Functions................................................................. 57

6.2 System & Initialization........................................................ 61

6.3 Encoder & Counter ............................................................ 63

6.4 PWM Configuration.. ... .... ... ... ... .... ... ... ................................ 66

6.5 TRG-OUT & TTL-OUT Configuration................................. 69

6.6 Comparator........................................................................ 72

6.7 FIFO Comparing................................................................ 73

ii Table of Contents

6.8 Linear Comparing.............................................................. 77

6.9 Manual Trigger................................................................... 80

6.10 Digital Input........................................................................ 81

6.11 Latch.................................................................................. 82

6.12 Timer.................................................................................. 84

6.13 Interrupt ............................................................................. 86

6.14 Filtering & Monitoring......................................................... 89

6.15 Return Errors................................ ... .... ... ... ........................ 92

Table of Contents iii

List of Tables

Table 2-1: CN1 Pin Assignments ............................................. 13

Table 2-2: CN2 Pin Assignments: TTL Output ......................... 14

Table 6-1: Data Type Definitions ............................................. 57

iv List of Tables

List of Figures

Figure 1-1: PCI-8124-C Block Diagram ....................................... 2

Figure 2-1: PCI-8124-C PCB Layout ......................................... 10

List of Figures v

vi List of Figures

1 Introduction

The PCI-8124-C is an advanced quadrature encoder counter
board with position compare and high speed trigger pulse output
capability. With a state-of-the-art of FPGA, it can meet most
machine maker requirements – high frequency encoder input and
trigger pulse output.

Typically, most machine makers design motion control systems
and vision inspection systems individually. Specifically, line scan
application, the frame grabber needs high frequency of trigger
pulse input to scan the whole image line-by-line. The more inten­sive lines, the more precise images users can get. This means
users will have this demand for high frequency of trigger pulse
input. With the advantage of integrating the trigger board and
frame grabber together, the vision system completely retrieves the
encoder information from servo motors or linear sca l e and the tr ig­ger pulse signal can be wired by flat cable internally. It is conve­nient for system integrators and also reduces the possibility of
signal interference. With FPGA ca lculation, it can also save CPU
loading of host PC.

The PCI-8124-C utilizes a FPGA and FIFO to realize the purpose.
All comparing points will automatically load into FIFO and be com­pared with the internal comparators. As a result, users do not have
to handle this with software. Besides, the trigger pulse frequency
can be up to 5MHz and the encoder input frequency can be up to
20 MHz. Users will not need to worry about noise disturbance
through the use of a digital filter. With adjustable pulse width,
users can change this with software control as they wish. Further­more, the relation between comparator and trigger output is mutu­ally corresponding – One comparator to multi-trigger outputs or
Multi-comparators to one trigger output. Eventually, the quantity of
trigger output pulse will be counted and stored in the trigger coun­ter.

The PCI-8124-C offers the board index design. This can let users
have one unique index number in the PC system. For input and
output channel, this board provides two types – TTL (without isola­tion) and Open Collector (with isolation). The former one can
meet high frequency demand; the latter one can let users have cir­cuit protection.

Introduction 1

ADLINK provides a Windows WDM driver for users. Users can
use DLL function library to build up the application. The block dia­gram of PCI-8124-C is as follows.

Figure 1-1: PCI-8124-C Block Diagram

2Introduction

1.1 Features

 PCI Rev 2.2, 32-bit/33Mhz Compliment
 Support both PCI-X (3.3V) and PCI (5V) slots
 Support 4-bit board ID for multiple boards in one system
 4 differential quardrature encoder counter input channels
 Each encoder counter input pair supports 1/2/4x A/B phase, dual

pulse (CW/CCW) and signed pulse (OUT/DIR) modes

 Internal digital filter
 4 trigger output channels via both open collector and TTL pins
 Trigger pulse width is software programmable from 0.1µs to

3.2765ms

 Each trigger output channel is selected from all comparators, man-

ual trigger commands, EZ signal and timers by demands

 4 trigger counters that can observe the accuracy of the trigger out-

put pulse quantity

 4 comparators for comparing encoder counter and FIFO data
 10 comparators for comparing encoder counter and linear data
 Each encoder counter source is selected from encoder input pins

or timers

 Comparator data is updated by next FIFO data or linear data when

encoder counter is compared and trigger is outputted

 14 comparators can select one of 4 trigger output channels individ-

ually

 4 channel TTL output pins for general purpose output or trigger

output

 4 channel TTL input pins for general purpose or timer start signal
 4 channel high speed latch input pins for counters
 EZ and Latch input pins can be used for general purpose input
 Latch input logic is selectab l e by risi ng or falling edge
 Encoder counter clear via EZ input pin as zero operation
 Programmable interrupt sources from linear data finished, trig-

gered, FIFO empty/full/low, latched, TTL input on.

 Switch setting for trigger output default level while power on
 Trigger output pin logic programmable
 Provide DLL and driver to support Windows 2K/XP/Vista

Introduction 3

1.2 Specifications

Main Chip

 Chip Vendor: ACTEL
 Model No: A3P1000
 Power usage: 3.3V and 1.5V
 Reference clock: 40Mhz

Encoder Counters:

 Number of channels: 4
 Type of wiring: dual differential pairs or single-ended pair
 Input Isolated photo coupler: PS9115
 Isolated Voltage: 2500 Vrms
 Maximum input frequency: 20 MHz (under 4xAB mode)
 Supported modes: AB phase x1/2/4, CW/CCW, OUT/DIR
 Data length: 32-bit
 Digital filter: Yes
 Zero Operation: EZ input

Counter Comparators:

 Number of comparators: 14
 Data length: 32-bit
 Trigger pulse width: 0.1µs to 3.2765ms programmable

Internal Timers:

 Number of timers: 4
 Timer base: 400ns
 Resolution: 14-bit
 Synchronous start signal: TTL input or register setting
 Synchronous stop signal: register setting

4Introduction

Trigger Output:

 Number of channels: 4
 Maximum output frequency: 5Mhz
 Output types: Open collector or TTL
 Open collector Isolated photo-coupler: PS9115
 Open collector Isolated: 2500 Vrms
 Continuous triggering method: Timer, FIFO or Linear func-

tion data reloading

 Interrupt: Yes, when triggered
 Trigger counter: Yes

Comparator FIFO:

 Number of FIFO: 4
 FIFO depth: 1023x32bits
 Interrupt type: Empty/full/low (1/4,1/2,3/4)
 Auto reload: Yes, auto reload n ext FIFO data to comparator

when compared

Comparator Linear Function

 Number of Linear Functions: 10
 Start Address length: 32-bits
 Repeat times length: 32-bit
 Interval length: 13-bit
 Direction length: 1-bit
 Interrupt: Yes, when repeat times count to 0
 Auto reload: Yes, auto reload next linear data to comparator

when compared

Latch Input

 Number of Latch Input pins: 4
 Input isolated photo-coupler: PS9115
 Isolated Voltage: 2500 Vrms
 Band width: 10Mhz
 Interrupt: Yes, when latched

Introduction 5

TTL Input

 Number of input pins: 4
 Photo-coupler Isolated: No
 TTL input mode: General purpose or timer synchronous

start signal

TTL output

 Number of output pins: 4
 Photo-coupler Isolated: No
 TTL output mode: General purpose output or trigger output

General Specifications

 Connectors: 50-pin SCSI-type connector
 Operating Temperature: 0C - 70C
 Storage Temperature: -20C - 80C
 Humidity: 5 - 85%, non-condensing

Power Consumption

 Slot power supply (input): +5V DC 5%, 450mA(max)
 Slot power supply (input): +12V DC 5%, 100mA(max)
 Isolation power is from PCI bus (+12V to isolated +5V DC)

PCB Dimension: 151mm(L) X 107mm(W)

6Introduction

1.3 Supported Software

1.3.1 Programming Library

ADLINK provides Windows WDM driver and DLL function library
for the PCI-8124-C. These function libra ries are shipped with the
board. It supports for Windows 2000/XP/Vista.

Introduction 7

8Introduction

2 Installation

This chapter describes how to inst all the PCI-8124-C. Please fol­low these steps below:

 Check what you have (Section 2.1)
 Check the PCB (Section 2.2)
 Install the hardware (Section 2.3)
 Install the software driver (Section 2.4)
 Understanding the I/O signal connections (Chapter 3) and

their operation (Chapter 4)

2.1 Package Contents

Except this User’s Guide, the package also inc ludes the following
items:

 PCI-8124-C: 4 channel encoder compare tr igger board
 ADLINK All-in-one Compact Disc

If any of these items are missing or damaged, contact the dealer
from whom you purchased the product. Save the shipping materi­als and carton to ship or store the product in the future.

Installation 9

2.2 PCI-8124-C Outline Drawing

Figure 2-1: PCI-8124-C PCB Layout

CN1: SCSI 50 pins Connector
CN2: TTL output
SW1: Board ID switch (ID: 0 to 15)
SW2: Default Trigger Level

10 Installation

2.3 PCI-8124-C Hardware Installation

2.3.1 Hardware Configuration

The PCI-8124-C is fully Plug and Play compliant. Hence memory
allocation (I/O port locations) and IRQ channel of the PCI card are
assigned by the system BIOS. The address assignment is done
on a board-by-board basis for all PCI cards in the system.

2.3.2 PCI Slot Selection

Your computer system may have both PCI and ISA slots. Do not
force the PCI card into a PC/A T slot. The PCI-8124 -C can be used
in any PCI slot. It also supports dual voltage PCI bus.

2.3.3 Installation Procedures

1. Read through this manual and setup the board index
with SMD switch. The ID range is from 0 to 15.

2. Turn off your computer. Turn off all accessories (printer,
modem, monitor, etc.) connected to computer. Remove
the cover from your computer.

3. Select a 32-bit PCI expansion slot. PCI slots are shorter
than ISA or EISA slots and are usually white or ivory.

4. Before handling the PCI-8124-C, discharge any static
buildup on your body by touching the metal case of the
computer. Hold the edge of the card and do not touch
the components.

5. Position the board into the PCI slot you have selected.

6. Secure the card in place a t the rear pan el of the system
unit using screws removed from the slot.

2.3.4 Troubleshooting:

If your system doesn’t boot or if you experience erratic operation
with your PCI board in place, it’s most likely caused by an interrupt
conflict (possibly an incorrect ISA setup). In general, the solution,
once determined it is not a simple oversight, is to consult the BIOS
documentation that comes with your system.

Installation 11

Check the control panel of the Windows system if the card is listed
by the system. If not, check the PCI settings in the BIOS or use
another PCI slot.

2.4 Software Driver Installation

Using the All-In-One CD with PCI-8124-C package and execute
the following steps:

1. Autorun the ADLINK All-In-One CD.

2. Follow the procedures of the installer.

3. After setup installation is completed, restart windows.

12 Installation

2.5 CN1 Pin Assignments

CN1 is the 50-pin SCSI type connector for I/O signals.

No. Name I/O Function No. Name I/O Function

1 INCOM1 - Latch input common 26 INCOM3 - Latch input common
2 LTC1 I Latch input 27 LTC3 I Latch input
3 INCOM2 - Latch input 28 INCOM4 - Latch input common
4 LTC2 I Latch input 29 LTC4 I Latch input
5 EGND - Trigger output common 30 EGND - Latch input common
6 TRG1 O Trigger output 1 31 TRG3 O Trigger output 3
7 EGND - Trigger output common 32 EGND - Trigger output common
8 TRG2 O Trigger output 2 33 TRG4 O Trigger output 4

9 EA1+ I A-phase encoder (+) 34 EA3+ I A-phase encoder (+)
10 EA1- I A-phase encoder (-) 35 EA3- I A-phase encoder (-)
11 EB1+ I B-phase encoder (+) 36 EB3+ I B-phase encoder (+)
12 EB1- I B-phase encoder (-) 37 EB3- I B-phase encoder (-)
13 EZ1+ I Z-phase encoder (+) 38 EZ3+ I Z-phase encoder (+)
14 EZ1- I Z-phase encoder (-) 39 EZ3- I Z-phase encoder (-)
15 EA2+ I A-phase encoder (+) 40 EA4+ I A-phase encoder (+)
16 EA2- I A-phase encoder (-) 41 EA4- I A-phase encoder (-)
17 EB2+ I B-phase encoder (+) 42 EB4+ I B-phase encoder (+)
18 EB2- I B-phase encoder (-) 43 EB4- I B-phase encoder (-)
19 EZ2+ I Z-phase encoder (+) 44 EZ4+ I Z-phase encoder (+)
20 EZ2- I Z-phase encoder (-) 45 EZ4- I Z-phase encoder (-)
21 TTL-IN1 I TTL input signal 46 TTL-IN3 I TTL input signal
22 TTL-IN2 I TTL input signal 47 TTL-IN4 I TTL input signal
23 TTL-OUT1 O TTL output signal 48 TTL-OUT3 O TTL output signal
24 TTL-OUT2 O TTL output signal 49 TTL-OUT4 O TTL output signal
25 DGND - TTL signal ground 50 DGND - TTL signal ground

Table 2-1: CN1 Pin Assignments

Installation 13

2.6 CN2 Pin Assignments: TTL Output

CN2 is a 6-pin header as follows:

No. Name I/O Function

1 +5V - +5V power supply
2 TTL-OUT1 O TTL output signal
3 TTL-OUT2 O TTL output signal
4 TTL-OUT3 O TTL output signal
5 TTL-OUT4 O TTL output signal
6 DGND - TTL signal ground

Table 2-2: CN2 Pin Assignments: TTL Output

Note: +5V and DGND pins are provided by the PCI-Bus. There-

fore, these signals are not isolated.

2.7 Board Index Switch Setting

The SW1 switch is used to set board unique index. Its range is
from 0 to 15. For example, the board index is 1 if you switch on pin
1 and switch off pin 2, 3 and 4.

2.8 Default Trigger Level

The SW2 switch is used to set TRG pin’s default level when power
on. Each bit represents one TRG channel. “ON” position means
default level of TRG channel is set to +5V and OFF position
means it is set to 0V. Manufacturing setting is ON.

14 Installation

3 Signal Connections

Signal connections of all I/O’s are described in this chapter. Refer
to the contents of this chapter before wiring any cables between
the PCI-8124-C and the end device.

This chapter contains the following sections:

Section 3.1 Connector (CN1) Pin Definition
Section 3.2 Isolated Input Ports (LTC, INCOM)
Section 3.3 Isolated Encoder Differential Input
Section 3.4 Isolated Out pu t Por ts (T RG , EGND)
Section 3.5 TTL Input Ports
Section 3.6 TTL Output Ports

Signal Connections 15

3.1 Connector (CN1) Pin Definition

There are 4 Isolated Latch Inputs, 4 A-B-Z Encoder Inputs, 4 TTL
level Inputs, 4 TTL level outputs and 4 Iso lated Outputs on PCI­8124-C. The following table shows the pin assignment of CN1.

CN1No. Name I/O Function

1 INCOM1 - Latch input common
2 LTC1 I Latch input
3 INCOM2 - Latch input
4 LTC2 I Latch input
5 EGND - Trigger output reference
6 TRG1 O Trigger output
7 OUTCOM2 - Trigger output reference
8 TRG2 O Trigger output

9 EA1+ I A-phase encoder (+)
10 EA1- I A-phase encoder (-)
11 EB1+ I B-phase encoder (+)
12 EB1- I B-phase encoder (-)
13 EZ1+ I Z-phase encoder (+)
14 EZ1- I Z-phase encoder (-)
15 EA2+ I A-phase encoder (+)
16 EA2- I A-phase encoder (-)
17 EB2+ I B-phase encoder (+)
18 EB2- I B-phase encoder (-)
19 EZ2+ I Z-phase encoder (+)
20 EZ2- I Z-phase encoder (-)
21 TTL-IN1 I TTL input signal
22 TTL-IN2 I TTL input signal
23 TTL-OUT1 O TTL output signal
24 TTL-OUT2 O TTL output signal
25 DGND - TTL signal ground
26 INCOM3 - Latch input common
27 LTC3 I Latch input
28 INCOM4 - Latch input common

16 Signal Connections

CN1No. Name I/O Function

29 LTC4 I Latch input
30 EGND - Latch input reference
31 TRG3 O Trigger output
32 EGND - Trigger output reference
33 TRG4 O Trigger output
34 EA3+ I A-phase encoder (+)
35 EA3- I A-phase encoder (-)
36 EB3+ I B-phase encoder (+)
37 EB3- I B-phase encoder (-)
38 EZ3+ I Z-phase encoder (+)
39 EZ3- I Z-phase encoder (-)
40 EA4+ I A-phase encoder (+)
41 EA4- I A-phase encoder (-)
42 EB4+ I B-phase encoder (+)
43 EB4- I B-phase encoder (-)
44 EZ4+ I Z-phase encoder (+)
45 EZ4- I Z-phase encoder (-)
46 TTL-IN3 I TTL input signal
47 TTL-IN4 I TTL input signal
48 TTL-OUT3 O TTL output signal
49 TTL-OUT4 O TTL output signal
50 DGND - TTL signal ground

Signal Connections 17

3.2 Isolated Input Ports (LTC, INCOM)

INCOMx

LTCx

Outside PCI-8124 inside PCI-8124

Max 30mA2.2KΩ

7.5mA to 12.5mA

There are 4 pairs of isolated input ports on PCI-8124-C. Each pair
has two terminals. One is INCOMx, and the other is LTCx.
Because the input port of the photo coupler utilized on PCI-8124 -C
is single-directional, LTC signal must be lower than INCOM signal.
When there is a differential voltage between LTCx and corre­sponding INCOMx, the photo coupler will turn on immediately.
There is an internal resistor in the PCI-8124-C circuit as figure
shows below. So it is not necessary to attach additional resistor
connected outside the PCI-8124-C. The forward current of input
signal is 7.5mA to 12.5mA. The typical forward voltage is 1.65V,
and the maximum forward voltage is 1.9V. So users should calcu­late the appropriate voltage applied on LTCx and INCOMx.

CN1 Pin No. Name Description

1 INCOM1 In1 Com

3 INCOM2 In2 Com
30 INCOM3 In3 Com
32 INCOM4 In4 Com

2 LTC1 Isolated Latch 1

4 LTC2 Isolated Latch 2
27 LTC3 Isolated Latch 3
29 LTC4 Isolated Latch 4

18 Signal Connections

3.3 Isolated Encoder Differential Input

There are 4 pairs of A-B-Z encoder signal inputs on PCI-8124-C.
The pin assignment of these encoder inputs are listed in the fol­lowing table.

The typical forward voltage of the input diode is 1.65V. And the
forward current of the input diode is 7.5mA to 12.5mA. There is an
internal resistor in the PCI-8124-C circuit as figure shows below.
So if there is no additional resistor connected outside the PCI­8124-C, the voltage difference between Encoder+ and Encoder­should be lower than 5VDC.

CN1 Pin No. Name Description

9, 15, 34, 40 EAn+ Isolated Encoder A +
10, 16, 35, 41 EAn- Isolated Encoder A ­11, 17, 36, 42 EBn+ Isolated Encoder B +
12, 18, 37, 43 EBn- Isolated Encoder B ­13, 19, 38, 44 EZn+ Isolated Encoder Z +
14, 20, 39, 45 EZn- Isolated Encoder Z -

Note: n=1, 2, 3, 4

Signal Connections 19

3.4 Isolated Output Ports (TRG, EGND)

There are 4 independent isolated output ports on PCI-8124-C.
Because the use of photo coupler PS9115, the output pull high is
not needed. The pin assignment of the isolated output ports on
PCI-8124-C is as follows, and PS9115 output characteristics are
described in the following figure.

CN1 Pin No. Name Description

5 EGND Output reference

7 EGND Output reference
30 EGND Output reference
32 EGMD Output reference

6 TRG1 Trigger 1

8 TRG2 Trigger 2
31 TRG3 Trigger 3
33 TRG4 Trigger 4

20 Signal Connections