JYTEK PXI-67931 User manual

PXI-67931
4x8 2-Wire Matrix Module
User’s Manual
Manual Rev.:
Date:
Rev. 1.1
Mar 8, 2022

Copyright © 2004, 2022 JYTEK Technology Inc. All Rights Reserved.
Revision History.
1.00 09-07-2004 Initial release
1.1 08-03-2022 Remove Star Trigger Out functionality
Disclaimer
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.
Trademarks
NuDAQ™, NuIPC™, NuDAM™, NuPRO™ are registered trademarks of JYTEK
Technology Inc. Other 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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JYTEK is committed to fulfill its social responsibility to
global environmental preservation through compliance
with the European Union's Restriction of Hazardous
Substances (RoHS) directive and Waste Electrical and
Electronic Equipment (WEEE) directive. Environmental
protection is a top priority for JYTEK. We have enforced
measures to ensure that our products, manufacturing
processes, components, and raw materials have as little
impact on the environment as possible. When products are
at their end of life, our customers are encouraged to dispose
of them in accordance with the product disposal and/or
recovery programs prescribed by their nation or company.
Battery Labels (for products with battery)
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California Proposition 65 Warning
WARNING: This product can expose you to chemicals including
acrylamide, arsenic, benzene, cadmium, Tris(1,3-dichloro-2-
propyl)phosphate (TDCPP), 1,4-Dioxane, formaldehyde, lead,
DEHP, styrene, DINP, BBP, PVC, and vinyl materials, which are known to the
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materials, which are known to the State of California to cause birth defects
or other reproductive harm. For more information go to
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http://www.jytek.com
[email protected]
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Table of Contents • i
Table of Contents
How to Use This Manual ................................................................ ii
Chapter 1 Introduction .............................................................. 1
1.1 Features ............................................................................... 1
1.2 Applications .......................................................................... 2
1.3 Specifications ....................................................................... 2
1.4 Software Support ................................................................ 3
Chapter 2 Installation ................................................................ 5
2.1 Contents ............................................................................... 5
2.2 Unpacking ............................................................................ 5
2.3 Mechanical Drawing ............................................................. 6
2.4 Installing the switch module into a PXI Platform ................. 6
Chapter 3 Signal Connection ...................................................... 9
3.1 PXI-67931 Topology ............................................................. 9
3.2 PXI-67931 Pin assignment & Description ........................... 10
3.3 TB-6231 Terminal Board ..................................................... 11
Chapter 4 Operation Theorem ................................................. 21
4.1 Hardware Block Diagram ................................................... 21
4.2 Operation Mode ................................................................ 22
4.3 Handshaking ...................................................................... 22
4.4 Trigger Bus ........................................................................ 28
4.5 Auxiliary Digital I/O ............................................................ 29
4.6 Hot-Swap ........................................................................... 30
4.7 Emergency Shutdown ........................................................ 30
4.8 Watchdog Timer ................................................................. 31
Warranty Policy ........................................................................ 33

How to Use This Manual
This User Manual is designed to assist users in the installation of the JYTEK
PXI-67931, 4x8 2-Wire Matrix PXI Switch module.
Chapter 1 Introduction
Gives an outline and overview of JYTEK switch modules’
features, specifications, and applications.
Chapter 2 Installation
Describes how to install a switch module into a PXI chassis. For
software library and utilities installation, please refer to the
Software Users’ Guide.
Chapter 3 Signal Connection
Shows the pin assignments and terminal board connection of the
switch module.
Chapter 4 Operation Theorem
Describes function blocks on JYTEK switch modules and
operation instructions.
ii • How to use this Manual

Introduction • 1
Introduction
JYTEK PXI-67931 is a matrix module with 32 cross-point 2-wire relays (DPDT, 2 Form
C). The default configuration of the PXI-67931 is a 4-group 2x4 2-wire matrix. With
the termination board, TB-6231, users can flexibly choose one of the configurations:
one 4x8, two 4x4, one 2x16, two 2x8, and four 2x4. Any contact of the
PXI-67931 can connect to other contacts at the same bank, individually, or in
combination. The PXI-67931 matrix module simplifies wiring and makes it easy to
change the internal connection path.
The contact position of the relays can be changed either by direct software
commands or by following the instructions previously stored in the on-board scan
list. The scan list advances upon the trigger from external measurement devices,
such as a DMM. The scan list can also advance when the scan-delay timer expires. PXI
trigger functions are supported and software programmable. Multiple modules can be
synchronized without additional field wiring.
1.1 Features
•PXI specifications Rev. 2.0 compliant
•3U Eurocard form factor, CompactPCI compliant (PICMG 2.0 R3.0)
•PICMG 2.1 R2.0 CompactPCI Hot-Swap specifications compliant
•32 DPDT (2 Form C) non-latching relays
•Contact rating
•2A switching, 2A carrying
•220VDC, 125VAC
•200 operations per second
•1k-sample scanlist for deterministic scanning
•Provides handshaking signals to trigger external instruments
•Programmable emergency shutdown function and Watchdog timer for
safety critical applications
•Eight auxiliary 3.3 V/TTL digital inputs/outputs with 5V tolerance
•Supports PXI backplane triggers to synchronize multiple modules
•Fully software programmable
1

1.2 Applications
•Industrial ON/OFF control
•External high power relay driving and signal switching
•Laboratory automation
•Industrial automation
•Switch contact status sensing
•Limit switch monitoring
•Cooperating with other modules such as A/D and D/A peripherals to
implement a data acquisition and control system
1.3 Specifications
Relay Output
•Number of cross-points: 32 (2-wire)
•Relay type: DPDT (2 Form C), non-latching
•Switching capacity:
•Max. switching current: 2A
•Max. switching voltage: 220VDC, 125VAC
•Max. switching power: 60VA, 60W
•Failure rate: 10µA, 10mVDC
•Contact resistance: 100mΩ max.
•Relay set/reset time
•Operate time: 4ms max.
•Release time: 4ms max.
•Bounce time: 1ms max.
•Expected life:
•Mechanical life: 108 operations min.
•Electrical life: 105 operations min. (2A @ 30VDC, resistive load)
•Data transfer: Programmed I/O
Auxiliary Digital I/O
•Numbers of channel: 8 inputs/outputs
•Compatibility: 3.3 V/TTL (5V tolerant)
•Data transfers: programmed I/O
Handshaking Signals
•Programmable polarity
•Logic level: 3.3 V/TTL (5V tolerant)
•Trigger In source: AUX1, PXI trigger bus, PXI star trigger in
•Scanner Advanced destination: AUX0, PXI trigger bus
2 • Introduction

Introduction • 3
Safety functions
•Emergency shutdown
•Logic level: 3.3 V/TTL (5V tolerant)
•Active with logic low (for AUX2/SHDNn pin)
•Emergency shutdown sources: AUX2/SHDNn, PXI star trigger input,
PXI trigger bus
•Watchdog timer
•Base clock available: 10MHz, fixed
•Counter width: 32-bit
•Watchdog Timer Overflow sources: Onboard 32-bit watchdog timer,
PXI star trigger input, PXI trigger bus
General Specifications
•I/O Connector: 62-pin D-sub male
•Operating temperature: 0 to 55 °C
•Storage temperature: -20 to 70 °C
•Humidity: 5 to 95% non-condensing
•Power requirements (when all relays are activated simultaneously)
+5V +3.3V
1A 400mA
•Dimensions (not including connectors)
•160 mm x 100 mm
1.4 Software Support
JYTEK‘s ADL-SWITCH driver package is for Microsoft Windows operating systems,
including Windows 98/ME/NT/2000/XP.
The driver package also provides utilities to test your switch module, as well as
programming samples and source codes in Microsoft Visual Basic and Visual C/C++.
For other operating systems, please contact JYTEK for more information.

4 • Introduction
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Installation • 5
Installation
This chapter describes the installation process for the JYTEK switch module. Please
read the contents of the package and the disassembling information carefully as
they are important in the implementation of the JYTEK switch module.
2.1 Contents
The package consists of the following items in addition to the User Manual:
•PXI-67931, 4x8 2-Wire Matrix PXI Switch module
•This User Guide
•JYTEK Software CD
•ADL-Switch User’s Guide
If any of these items are missing or broken, please do not hesitate to contact JYTEK
or the dealer from whom the product was purchased. Keep the shipping
materials and carton for future storage or shipping.
2.2 Unpacking
JYTEK switch module contains sensitive electronic components that can be easily
damaged by static electricity. The switch module should be operated on a grounded
anti-static mat. It is strongly recommended that the operator wears an anti-static
wristband, grounded at the same point as the anti-static mat.
Inspect the box for any obvious damage. Check the unit to ensure there are no
shipping and handling damages that may have occurred before proceeding.
After opening, remove the switch module and place it only on a grounded anti- static
surface component side up.
Note: Do not apply power to the module if it has been damaged.
2

You are now ready to install the PXI-67931.
2.3 Mechanical Drawing
Figure 1: JYTEK Switch Module
JYTEK switch module is packaged in a Eurocard form factor compliant with PXI
Specifications measuring 160 mm in length and 100 mm in height (not including
connectors). A 62-pin connector is located at the front panel for wiring purposes and
the J1/J2 IEC connectors in the rear are used to link the chassis backplane. With its
modular, rugged, and high shock resistant mechanical features, the switch
module functions exceptionally well in any harsh environment application.
2.4 Installing the switch module into a PXI Platform
To insert the JYTEK PXI switch module, align the module’s edge with the card guide in
the PXI chassis. Slide the switch module into the chassis, until resistance is
felt from the PXI connector. Push the ejector upwards and fully insert the switch
module into the chassis. Once inserted, a “click” can be heard from the ejector latch.
Tighten the screws on the front panel.
6 • Installation

Installation • 7
Figure 2: Installing the switch module into a PXI platform

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8 • Installation

Signal Connection • 9
Signal Connection
3.1 PXI-67931 Topology
Relays on the PXI-67931 are configured into a 4-group 2x4 2-wire matrix. Users can
switch on/off to connect or disconnect any number of rows to any number of
columns in the same bank. This configuration can let user simultaneous connects
one or more input signals to one or more devices. All signal paths on PXI-67931 are
inherently break-before-make.
The TB-6231 is a 2-wire terminal board; each path has two ways (i.e. R0 is
indicated as R0+ and R0-).
Figure 3: 2-wire paths
3

10 • Signal Connection
3.2 PXI-67931 Pin assignment & Description
22. C8+
43. C0+ 23. C8-1. R0+
44. C0-24. C9+ 2. R0-
45. C1+ 25. C9-3. R1+
46. C1-26. C10+ 4. R1-
47. C2+ 27. C10-5. R2+
48. C2-28. C11+ 6. R2-
49. C3+ 29. C11-7. R3+
50. C3-30. C12+ 8. R3-
51. C4+ 31. C12-9. R4+
52. C4-32. C13+ 10. R4-
53. C5+ 33. C13-11. R5+
54. C5-34. C14+ 12. R5-
55. C6+ 35. C14-13. R6+
56. C6-36. C15+ 14. R6-
57. C7+ 37. C15-15. R7+
58. C7-38. NC 16. R7-
59. NC 39. NC 17. NC
60. AUX3 40. AUX4 18. AUX2/SHDNn
61. AUX6 41. +5V out 19. AUX5
62. AUX7 42. AUX1/TRG_IN 20. GND
21. AUX0/S_ADV
Table 1: Pin Assignment
Signal Name Type Description
C0+ to C15+
C0- to C15- Input/Output Columns: signals are connected to the
switch module
R0+ to R7+
R0- to R7- Input/Output Rows: signals are connected to the switch module
AUX[7..0] Input/Output
Programmable Digital I/O with tri-state
control.
AUX[2..0] are dual function pins used for
triggering, refer to chapter 4 for details.
TRG_IN Input Trigger input for handshaking operation
S_ADV Output Scanner Advanced trigger output for
handshaking operation
SHDNn Input Active-low Emergency Shutdown trigger
+5V out Output Unregulated +5V DC Source, maximum
100mA current loading
GND Output Ground
NC Not Connected Unused pin
Table 2: Pin Description

Signal Connection • 11
3.3 TB-6231 Terminal Board
Configurations
The TB-6231 is a screw terminal board with D-sub 62-pin female connector. The
terminal board can attach to PXI-67931 directly, or through JYTEK‘s custom-
made high-capacity 62-pin D-sub cable.
Users can use the TB-6231 terminal board to make various matrix
configurations. The TB-6231’s default configuration is a 4-group 2x4 matrix in 2-
wire. If other matrix configurations are preferred, users can refer the table
below to short the relative pads.
For example, to use a 2x4 matrix, do not short any pads. To use 2x16 matrix, short
the last 12 pads at the lower-right corner of the table.
2x4 Matrix
This configuration has four independent 2x4 matrices, Bank0 to Bank3, each with
two rows and four columns. The following diagram illustrates the PXI- 67931
with the TB-6231.

12 • Signal Connection
Figure 4: 2x4 Matrix (I)
In this configuration, the TB-6231 would not have any shorted pads.
The grid below shows the names used for software configuration with
corresponding traces to the TB-6231.

Signal Connection • 13
Figure 5: 2x4 Matrix (II)

14 • Signal Connection
2x8 Matrix
This configuration has two independent 2x8 matrices ranging from Bank0 to
Bank1, each has two rows and eight columns. The following diagram
illustrates the PXI-67931 with the TB-6231 to produce relative paths.
Figure 6: 2x8 Matrix (I)
To use a 2x8 matrix, short the following TB-6231 pads.
The grid below shows the names used for software configuration with
corresponding traces to the TB-6231