VXI VM4016 User manual

Brand: VXI

Model: VM4016

Type: User manual

VM4016

ANALOG COMPARATOR

USER’S

ANUAL

82-0022-000

Rev. December 1, 2003

VXI Technology, Inc.

2031 Main Street

Irvine, CA 92614-6509

(949) 955-1894

www.vxitech.com

VM4016 Preface 3

TABLE OF CONTENTS

NTRODUCTION

Certification ..........................................................................................................................................................5

Warranty ...............................................................................................................................................................5

Limitation of Warranty .........................................................................................................................................5

Restricted Rights Legend......................................................................................................................................5

Declaration of Conformity.......................................................................................................................................6

General Safety Instructions......................................................................................................................................7

Terms and Symbols...............................................................................................................................................7

Warnings...............................................................................................................................................................7

Support Resources ...................................................................................................................................................9

SECTION 1.................................................................................................................................................................11

Introduction............................................................................................................................................................11

Introduction.........................................................................................................................................................11

Description..........................................................................................................................................................12

VM4016 General Specifications.........................................................................................................................14

SECTION 2.................................................................................................................................................................15

Preparation for Use ................................................................................................................................................15

Installation ..........................................................................................................................................................15

Calculating System Power and Cooling Requirements.......................................................................................15

Setting the Chassis Backplane Jumpers ..............................................................................................................16

Setting the Logical Address ................................................................................................................................16

Front Panel Interface Wiring ..............................................................................................................................16

SECTION 3.................................................................................................................................................................19

Programming .........................................................................................................................................................19

Examples of SCPI Commands............................................................................................................................19

FETCH:CONDITIONED? ..............................................................................................................................19

FETCH:LATCHED? .......................................................................................................................................20

FETCH:RAW? ................................................................................................................................................21

INHOUSE:PSEUDO.......................................................................................................................................22

INHOUSE:REGINT........................................................................................................................................23

INHOUSE:REG_ENABLE.............................................................................................................................24

INHOUSE:CLEAR_LATCH ..........................................................................................................................25

INPUT:DEBOUNCE.......................................................................................................................................26

INPUT:MASK.................................................................................................................................................27

INPUT:MASK:INTERRUPT..........................................................................................................................28

INPUT:OFFSET..............................................................................................................................................29

INPUT:POLARITY.........................................................................................................................................30

INPUT:RANGE ..............................................................................................................................................31

OUTPUT:POLARITY:EXTERNAL:INTERRUPT .......................................................................................32

OUTPUT:POLARITY:EXTERNAL:LATCHED...........................................................................................33

Application Examples............................................................................................................................................34

Single Channel Operation ...................................................................................................................................35

Bracketing a Voltage...........................................................................................................................................38

Register Access Examples .....................................................................................................................................41

Pseudo Register Access ......................................................................................................................................43

VXIplug&play Driver Examples ...........................................................................................................................44

SECTION 4.................................................................................................................................................................47

Command Dictionary.............................................................................................................................................47

Introduction.........................................................................................................................................................47

Alphabetical Command Listing ..........................................................................................................................47

Command Dictionary..........................................................................................................................................51

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4 VM4016 Preface

Common SCPI Commands ....................................................................................................................................52

*CLS ...................................................................................................................................................................52

*ESE ...................................................................................................................................................................53

*ESR? .................................................................................................................................................................54

*IDN? .................................................................................................................................................................55

*OPC...................................................................................................................................................................56

*RST ...................................................................................................................................................................57

*SRE ...................................................................................................................................................................58

*STB? .................................................................................................................................................................59

*TRG ..................................................................................................................................................................60

*TST? .................................................................................................................................................................61

*WAI ..................................................................................................................................................................62

Instrument Specific SCPI Commands....................................................................................................................63

FETCh:CONDitioned? .......................................................................................................................................63

FETCh:LATChed?..............................................................................................................................................64

FETCh:RAW? ....................................................................................................................................................65

INHOUSE:CLEAR_LATCH .............................................................................................................................66

INHOUSE:PSEUDO ..........................................................................................................................................67

INHOUSE:REGINT ...........................................................................................................................................68

INHOUSE:REG_ENABLE ................................................................................................................................69

INPut:DEBounce ................................................................................................................................................70

INPut:MASK ......................................................................................................................................................71

INPut:MASK:INTerrupt .....................................................................................................................................72

INPut:OFFSet .....................................................................................................................................................73

INPut:POLarity...................................................................................................................................................74

INPut:RANGe.....................................................................................................................................................75

OUTPut:POLarity:EXTernal:INTerrupt.............................................................................................................76

OUTPut:POLarity:EXTernal:LATChed.............................................................................................................77

Required SCPI Commands ....................................................................................................................................78

STATus:OPERation:CONDition? ......................................................................................................................78

STATus:OPERation:ENABle.............................................................................................................................79

STATus:OPERation[:EVENt]? ..........................................................................................................................80

STATus:PRESet .................................................................................................................................................81

STATus:QUEStionable:CONDition? .................................................................................................................82

STATus:QUEStionable:ENABle........................................................................................................................83

STATus:QUEStionable[:EVENt] .......................................................................................................................84

SYSTem:ERRor?................................................................................................................................................85

SYSTem:VERSion?............................................................................................................................................86

SECTION 5.................................................................................................................................................................87

Theory of Operation ..............................................................................................................................................87

Introduction.........................................................................................................................................................87

Input Range Control............................................................................................................................................88

Signal Comparison..............................................................................................................................................90

Interrupt Generation............................................................................................................................................91

INDEX........................................................................................................................................................................93

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VM4016 Preface 5

CERTIFICATION

VXI Technology, Inc. (VTI) certifies that this product met its published specifications at the time of shipment from

the factory. VTI further certifies that its calibration measurements are traceable to the United States National

Institute of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that

organization’s calibration facility, and to the calibration facilities of other International Standards Organization

members.

WARRANTY

The product referred to herein is warranted against defects in material and workmanship for a period of three years

from the receipt date of the product at customer’s facility. The sole and exclusive remedy for breach of any

warranty concerning these goods shall be repair or replacement of defective parts, or a refund of the purchase price,

to be determined at the option of VTI.

For warranty service or repair, this product must be returned to a VXI Technology authorized service center. The

product shall be shipped prepaid to VTI and VTI shall prepay all returns of the product to the buyer. However, the

buyer shall pay all shipping charges, duties, and taxes for products returned to VTI from another country.

VTI warrants that its software and firmware designated by VTI for use with a product will execute its programming

when properly installed on that product. VTI does not however warrant that the operation of the product, or

software or firmware will be uninterrupted or error free.

LIMITATION OF WARRANTY

The warranty shall not apply to defects resulting from improper or inadequate maintenance by the buyer, buyer-

supplied products or interfacing, unauthorized modification or misuse, operation outside the environmental

specifications for the product, or improper site preparation or maintenance.

VXI Technology, Inc. shall not be liable for injury to property other than the goods themselves. Other than the

limited warranty stated above, VXI Technology, Inc. makes no other warranties, express or implied, with respect to

the quality of product beyond the description of the goods on the face of the contract. VTI specifically disclaims the

implied warranties of merchantability and fitness for a particular purpose.

RESTRICTED RIGHTS LEGEND

Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subdivision (b)(3)(ii) of

the Rights in Technical Data and Computer Software clause in DFARS 252.227-7013.

VXI Technology, Inc.

2031 Main Street

Irvine, CA 92614-6509 U.S.A.

VXI Technology, Inc.

6 VM4016 Preface

D ECLARATION OF C ONFORMITY

Declaration of Conformity According to ISO/IEC Guide 22 and EN 45014

ANUFACTURER’S NAME VXI Technology, Inc.

ANUFACTURER’S ADDRESS 2031 Main Street

Irvine, California 92614-6509

RODUCT NAME Analog Comparator

ODEL NUMBER(S) VM4016

RODUCT OPTIONS All

RODUCT CONFIGURATIONS All

VXI Technology, Inc. declares that the aforementioned product conforms to the requirements of

the Low Voltage Directive 73/23/EEC and the EMC Directive 89/366/EEC (inclusive 93/68/EEC)

and carries the “CE” mark accordingly. The product has been designed and manufactured

according to the following specifications:

AFETY EN61010 (2001)

EMC EN61326 (1997 w/A1:98) Class A

CISPR 22 (1997) Class A

VCCI (April 2000) Class A

ICES-003 Class A (ANSI C63.4 1992)

AS/NZS 3548 (w/A1 & A2:97) Class A

FCC Part 15 Subpart B Class A

EN 61010-1:2001

The product was installed into a C-size VXI mainframe chassis and tested in a typical configuration.

I hereby declare that the aforementioned product has been designed to be in compliance with the relevant sections

of the specifications listed above as well as complying with all essential requirements of the Low Voltage Directive.

December 2003

_________________________

Jerry Patton, QA Manager

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VM4016 Preface 7

GENERAL SAFETY INSTRUCTIONS

Review the following safety precautions to avoid bodily injury and/or damage to the product.

These precautions must be observed during all phases of operation or service of this product.

Failure to comply with these precautions, or with specific warnings elsewhere in this manual,

violates safety standards of design, manufacture, and intended use of the product.

Service should only be performed by qualified personnel.

TERMS AND SYMBOLS

These terms may appear in this manual:

WARNING

Indicates that a procedure or condition may cause bodily injury or death.

CAUTION

Indicates that a procedure or condition could possibly cause damage to

equipment or loss of data.

These symbols may appear on the product:

ATTENTION - Important safety instructions

Frame or chassis ground

WARNINGS

Follow these precautions to avoid injury or damage to the product:

Use Proper Power Cord

To avoid hazard, only use the power cord specified for this

product.

Use Proper Power Source

To avoid electrical overload, electric shock, or fire hazard,

do not use a power source that applies other than the

specified voltage.

Use Proper Fuse

To avoid fire hazard, only use the type and rating fuse

specified for this product.

VXI Technology, Inc.

8 VM4016 Preface

WARNINGS (CONT.)

Avoid Electric Shock

To avoid electric shock or fire hazard, do not operate this

product with the covers removed. Do not connect or

disconnect any cable, probes, test leads, etc. while they are

connected to a voltage source. Remove all power and

unplug unit before performing any service. Service should

only be performed by qualified personnel.

Ground the Product

This product is grounded through the grounding conductor

of the power cord. To avoid electric shock, the grounding

conductor must be connected to earth ground.

Operating Conditions

To avoid injury, electric shock or fire hazard:

- Do not operate in wet or damp conditions.

- Do not operate in an explosive atmosphere.

- Operate or store only in specified temperature range.

- Provide proper clearance for product ventilation to

prevent overheating.

- DO NOT operate if you suspect there is any damage to

this product. Product should be inspected or serviced

only by qualified personnel.

Improper Use

The operator of this instrument is advised that if

equipment is used in a manner not specified in this

manual, the protection provided by this equipment be

may be impaired.

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VM4016 Preface 9

SUPPORT RESOURCES

Support resources for this product are available on the Internet and at VXI Technology customer

support centers.

VXI Technology

World Headquarters

VXI Technology, Inc.

2031 Main Street

Irvine, CA 92614-6509

Phone: (949) 955-1894

Fax: (949) 955-3041

VXI Technology

Cleveland Instrument Division

VXI Technology, Inc.

7525 Granger Road, Unit 7

Valley View, OH 44125

Phone: (216) 447-8950

Fax: (216) 447-8951

VXI Technology

Lake Stevens Instrument Division

VXI Technology, Inc.

1924 - 203 Bickford

Snohomish, WA 98290

Phone: (425) 212-2285

Fax: (425) 212-2289

Technical Support

Phone: (949) 955-1894

Fax: (949) 955-3041

E-mail: [email protected]

Visit http://www.vxitech.com for worldwide support sites and service plan information.

VXI Technology, Inc.

10 VM4016 Preface

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VM4016 Preparation for Use 11

SECTION 1

INTRODUCTION

The VM4016 is a high-performance Analog Comparator module which has been designed to

monitor analog signals and cause VXIbus interrupts to occur when programmed input limits have

been exceeded. The instrument uses the message-based word serial interface for programming

and data movement, as well as supporting direct register access for very high-speed data retrieval.

The VM4016 command set conforms with the SCPI standard for consistency and ease of

programming.

The VM4016 is a member of the VXI Technology VMIP™ (VXI Modular Instrumentation

Platform) family and is available as a 16-, 32- or 48-channel, single-wide VXIbus instrument. In

addition to these three standard configurations, the VM4016 may be combined with any of the

other members of the VMIP family to form a customized and highly integrated instrument (see

Figure 1-1). This allows the user to reduce system size and cost by combining the VM4016 with

two other instrument functions in a single-wide C-size VXIbus module. Figure 1-2 shows the

48-channel version of the VM4016. The 32-channel version would not have J200 and its

associated LEDs and nomenclature while the 16-channel version would also eliminate J202.

MIP

INTERFACE

MIP

INSTRUMENT

MODULE #1

MIP

INSTRUMENT

MODULE #2

VMIP

INSTRUMENT

MODULE #3

FIGURE 1-1: VMIP™ PLATFORM

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12 VM4016 Preparation for Use

Regardless of whether the VM4016 is configured with other VM4016 modules or with

other VMIPmodules, each group of 16 channels is treated as an independent instrument

in the VXIbus chassis and, as such, each group has its own FAIL and ACCESS light.

The FAIL LED is a Power/Fault indicator. When normal power up conditions exist, the

FAIL LED will illuminate green. When a power on fault condition occurs, the FAIL

LED will illuminate red. The ACC/ERR LED indicates communication status. When a

successful Access occurs, the LED will blink green during data transfer and

command/query operations. In the event of an unrecognized command, or other data

related error, the ACC/ERR LED will illuminate red. If there is no command/query

activity, and no errors, the ACC/ERR LED will be extinguished. The normal state of the

LEDs on a properly functioning idle instrument is for the FAIL LED to be green, and the

ACC/ERR LED to be off.

DESCRIPTION

The VM4016 is a high-performance Analog Comparator module with 16 input channels

per VMIP daughter module. Each input channel consists of a differential amplifier with

a gain of 1 or 0.1 giving an input range of ±10 volts or ±100 volts. Each input is

compared against a reference voltage derived from an independent 8-bit DAC.

Each input signal is digitally debounced for a programmed time ranging from

approximately 10

s to 0.5 seconds. This prevents input signal noise from causing

undesired interrupts. After debounce, the signal may be programmatically inverted to

select the input transition edge of interest (rising or falling edge) and masked to prevent

unused channels from causing interrupts.

All of the masked inputs are OR’d together to produce a single interrupt signal. This

interrupt signal is used to generate a VXIbus interrupt as well as the front panel interrupt

outputs. All active input is recorded as a 1. Once the VXIbus interrupt is serviced by the

slot 0 controller, the First Latched Register will be cleared.

The state of each channel’s debounced input and the inverted and masked status may be

read directly in the user defined area of the VXIbus registers as can the First Latched

interface.

The block diagram of Figure 1-3 shows the overall functionality of the VM4016 Analog

Comparator instrument.

FIGURE 1-2: FRONT PANEL LAYOUT

bus

FAIL

ACC/

ERR

FAIL

ACC/

ERR

FAIL

ACC/

ERR

J200

J201

J202

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VM4016 Preparation for Use 13

DEBOUNCE

10 uS TO 0.5 S

DIFFERENTIAL

AMPLIFIER

X1 OR X0.1

COMPARATOR

8 BIT DAC

CH1+

CH1-

INVERT

MASK

INTERRUPT

AND FIRST

LIMIT LOGIC

FIRST LIMIT

LATCH

TO VXIBUS

COMPARE

REGISTERS

VXIbus

INTERRUPT

TO VXIBUS

FIRST LIMIT

IRQ

L IRQ

INTERRUPT

INVERT

FIRST LIMIT

INVERT

XI MODULE

PANEL

CHANNEL 1 OF

CHANNEL 16 OF

+5V

FIGURE 1-3: VM4016 BLOCK DIAGRAM

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14 VM4016 Preparation for Use

VM4016 GENERAL SPECIFICATIONS

GENERAL SPECIFICATIONS

CHANNELS

VM4016-1

VM4016-2

VM4016-3

INPUT RANGE

±10.0 V, ±100 V

INPUT THRESHOLD

±10.0 V

±100.0 V

78 mV

780 mV

INPUT TYPE

Differential, may be configured for single-ended by grounding the negative input

INPUT IMPEDANCE

200 kΩ Differential

100 kΩ Single-ended

INPUT POLARITY

Rising or Falling Edge

DEBOUNCE TIME

9.6 µs to 0.6291456 s, 9.6 µs resolution

IRQ OUTPUT

Open Collector Driver, 200 mA max. sink

Internally pulled up to +5 V with 10 k resistor

LATCHED IRQ OUTPUT

Open Collector Driver, 200 mA max. sink

Internally pulled up to +5 V with 10 k resistor

VXI INTERFACE

Message-based word serial interface

Direct register access in the user defined area of the VXIbus register map

LOGICAL ADDRESSING

Static or Dynamic Configuration

RAW DATA REGISTER

Logical Address + 20H

MASKED DATA REGISTER

Logical Address + 28H

FIRST LATCHED REGISTER

Logical Address + 30H

POWER REQUIREMENTS

VM4016-1

VM4016-2

VM4016-3

+5 V @ 1.43 A, -5.2 V @ 0.17 A, +24 V @ 0.05 A, -24 V @ 0.05 A

+5 V @ 2.12 A, -5.2 V @ 0.29 A, +24 V @ 0.10 A, -24 V @ 0.10 A

+5 V @ 2.81 A, -5.2 V @ 0.41 A, +24 V @ 0.15 A, -24 V @ 0.15 A

COOLING REQUIREMENTS

VM4016-1

VM4016-2

VM4016-3

See Power Cooling Table

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VM4016 Preparation for Use 15

Section 2

SECTION 2

PREPARATION FOR USE

INSTALLATION

When the VM4016 is unpacked from its shipping carton, the contents should include the

following items:

One VM4016 VXIbus module

One VM4016 Analog Comparator Module User’s Manual (this manual)

All components should be immediately inspected for damage upon receipt of the unit.

Once the VM4016 is assessed to be in good condition, it may be installed into an appropriate

C-size or D-size VXIbus chassis in any slot other than slot 0. The chassis should be checked to

ensure that it is capable of providing adequate power and cooling for the VM4016. Once the

chassis is found be adequate, the VM4016’s logical address and the chassis’ backplane jumpers

should be configured prior to the VM4016’s installation.

CALCULATING SYSTEM POWER AND COOLING REQUIREMENTS

It is imperative that the chassis provide adequate power and cooling for this module. Referring to

the chassis user’s manual, confirm that the power budget for the system (the chassis and all

modules installed therein) is not exceeded and that the cooling system can provide adequate

airflow at the specified backpressure.

It should be noted that if the chassis cannot provide adequate power to the module, the instrument

may not perform to specification or possibly not operate at all. In addition, if adequate cooling is

not provided, the reliability of the instrument will be jeopardized and permanent damage may

occur. Damage found to have occurred due to inadequate cooling would also void the warranty of

the module.

VXI Technology, Inc.

16 VM4016 Preparation for Use

SETTING THE CHASSIS BACKPLANE JUMPERS

Please refer to the chassis User’s Manual for further details on setting the backplane jumpers.

SETTING THE LOGICAL ADDRESS

The logical address of the VM4016 is set by a single 8-position DIP switch located near the

module’s backplane connectors (this is the only switch on the module). The switch is labeled with

positions 1 through 8 and with an ON position. A switch pushed toward the ON legend will

signify a logic 1; switches pushed away from the ON legend will signify a logic 0. The switch

located at position 1 is the least significant bit while the switch located at position 8 is the most

significant bit. See Figure 2-1 for examples of setting the logical address switch.

SET TO 4

2345678

SET TO 168

12345678

SET TO 8

2345678

SET TO 255

ON ON

2345678

Switch

Position

128

Switch

Value

ON ON

(Dynamic)

FIGURE 2-1: LOGICAL ADDRESS SWITCH SETTING EXAMPLES

The VMIP may contain three separate instruments and will allocate logical addresses as required

by the VXIbus specification (revisions 1.3 and 1.4). It is necessary that the address of the first

instrument (the instrument closest to the top of the module) be set at an address which is divisible

by 4 and not set to 0. Switch positions 0 and 1 must always be set to the OFF position. Therefore

only addresses of 4, 8, 12, 16 ... 252 are allowed. The address switch should be set for one of

these legal addresses and the address for the second instrument (the instrument in the center

position) will automatically be set to the switch set address plus one; while the third instrument

(the instrument in the lowest position) will automatically be set to the switch set address plus two.

If dynamic address configuration is desired, the address switch should be set for a value of 255.

Upon power-up, the slot 0 resource manager will assign logical addresses to each instrument in

the VMIP module.

FRONT PANEL INTERFACE WIRING

The VM4016’s interface is made available on the front panel of the instrument. The 16-channel

version (VM4016-1) will have J201 that contains all signals for this instrument. The 32-channel

version (VM4016-2) will have J201 and J202 provided, while the 48-channel version (VM4016-

3) will have J200, J201 and J202. The wiring for each of these connectors is identical and since

each group of 16 channels is treated as a separate instrument, the module will have three Channel

1s, three Channel 2s, three Channel 3s, etc.

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VM4016 Preparation for Use 17

The connector used in the VM4016 is a commonly available 44-pin high density DSUB receptacle

connector. A mating solder cup pin connector from AMP is included, crimp type connectors are

available from a variety of sources.

TABLE 2-1: ANALOG COMPARATOR PIN OUTS

SIGNAL PIN NUMBER SIGNAL PIN NUMBER

CHANNEL 1 + 1 GROUND 23

CHANNEL 1 - 2 CHANNEL 11 + 24

GROUND 3 CHANNEL 11 - 25

CHANNEL 4 + 4 CHANNEL 14 + 26

CHANNEL 4 - 5 CHANNEL 14 - 27

CHANNEL 7 + 6 GROUND 28

CHANNEL 7 - 7 CHANNEL 16 + 29

GROUND 8 CHANNEL 16 - 30

CHANNEL 10 + 9 CHANNEL 3 + 31

CHANNEL 10 - 10 CHANNEL 3 - 32

CHANNEL 13 + 11 GROUND 33

CHANNEL 13 - 12 CHANNEL 6 + 34

GROUND 13 CHANNEL 6 - 35

IRQ OUTPUT 14 CHANNEL 9 + 36

GROUND 15 CHANNEL 9 - 37

CHANNEL 2 + 16 GROUND 38

CHANNEL 2 - 17 CHANNEL 12 + 39

GROUND 18 CHANNEL 12 - 40

CHANNEL 5 + 19 CHANNEL 15 + 41

CHANNEL 5 - 20 CHANNEL 15 - 42

CHANNEL 8 + 21 GROUND 43

CHANNEL 8 - 22 LATCHED IRQ OUT 44

VXI Technology, Inc.

18 VM4016 Preparation for Use

The mating connector to J200, J201 or J202 is available from the following company:

Assmann Electronic, Inc. P/N AHDS44LL-T Mating Connector

The pin locations for J200, J201 and J202 are shown in Figure 2-2.

FIGURE 2-2: J200, J201 AND J202 PIN LOCATIONS

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VM4016 Programming 19

SECTION 3

PROGRAMMING

EXAMPLES OF SCPI COMMANDS

FETCH:CONDITIONED?

The FETCh:CONDition query returns the 16-bit value that represents the current conditioned

(masked and inverted) state of the inputs. It is important to note that this information is also

available at the VXIbus register level at offset 0x28.

FETCh:CONDitioned? No query parameters.

EXAMPLES

FETCh:CONDitioned? Returns the state of the conditioned 0

(masked and inverted) inputs.

VXI Technology, Inc.

20 VM4016 Programming

FETCH:LATCHED?

The FETCh:LATChed query returns a 16-bit value that reports the active signals in the First

Latched register. The First Latched register records the active signals when the first new input

channel crossed its threshold. It is important to note that the above information is also available at

the VXIbus register level at offset 0x30.

FETch:LATChed? No query parameters

EXAMPLES

FETCh:LATChed? Returns the active signals in the First

1 Latched register. Channel 1.

FETC:LATC? Returns the active signals in the First

3 Latched Register. Channels 1 and 2.

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VXI VM4016 User manual

VXI VM4016 User manual

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