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, electronic, or other means in any form without prior written permission of the manufacturer.

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Product names mentioned herein are used for identification purposes only and may be trademarks and/or registered trademarks of their respective companies.

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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 scale and the trigger 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 calculation, 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

2	Introduction

1.1Features

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, manual trigger commands, EZ signal and timers by demands

4 trigger counters that can observe the accuracy of the trigger output 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 individually

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 selectable by rising or falling edge

Encoder counter clear via EZ input pin as zero operation

Programmable interrupt sources from linear data finished, triggered, 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

4	Introduction

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 function 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 next 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)

6	Introduction

1.3 Supported Software

1.3.1Programming Library

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

Introduction

7

8	Introduction

2 Installation

This chapter describes how to install 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)

2.1Package Contents

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

PCI-8124-C: 4 channel encoder compare trigger 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

2.3.1Hardware 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.

2.3.2PCI Slot Selection

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

2.3.3Installation 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 at the rear panel of the system unit using screws removed from the slot.

2.3.4Troubleshooting:

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. Therefore, 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 Output Ports (TRG, 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 Isolated Outputs on PCI- 8124-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)

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

Outside PCI-8124 inside PCI-8124

INCOMx	2.2KΩ	7.5mA to 12.5mA
		Max 30mA

LTCx

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 PCI- 8124-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