HP 75000 Series B
HP E1330B
Quad 8-Bit Digital I/O Module
User’s Manual and SCPI Programming Guide
Where to Find it - Online and Printed Information:
System installation (hardware/software)............VXIbus Configuration Guide*
HP VIC (VXI installation software)*
Module configuration and wiring.......................This Manual
SCPI programming.............................................This Manual
SCPI example programs.....................................This Manual, Driver Disk
SCPI command reference ..................................This Manual
Register-Based Programming.............................This Manual
VXIplug&play programming ............................VXIplug&play Online Help
VXIplug&play example programs .....................VXIplug&play Online Help
VXIplug&play function reference......................VXIplug&play Online Help
Soft Front Panel information..............................VXIplug&play Online Help
VISA language information................................HP VISA User’s Guide
HP VEE programming information....................HP VEE User’s Manual
*Supplied with HP Command Modules, Embedded Controllers, and VXLink.
Manual Part Number: E1330-90007
Printed in U.S.A. E0597
Contents
HP E1330B User’s Manual
Warranty .......................................................................................................................5
Safety Symbols.............................................................................................................6
WARNINGS.................................................................................................................6
Declaration of Conformity............................................................................................7
Reader Comment Sheet ................................................................................................9
Chapter 1
Getting Started ............................................................................................................. 11
Using This Chapter.....................................................................................................11
Technical Description.................................................................................................11
Instrument Definition..................................................................................................13
Downloading SCPI Drivers........................................................................................13
Programming the Digital I/O Module.........................................................................13
SCPI Command Format Used in This Manual ....................................................14
Specifying SCPI Commands ...............................................................................14
Initial Operation..........................................................................................................16
Chapter 2
Configuring the HP E1330B Digital I/O Module ......................................................17
Using This Chapter.....................................................................................................17
Setting the Address Switch......................................................................................... 18
Enabling Pull-ups........................................................................................................19
Selecting the Interrupt Line ........................................................................................20
Combining the Flag Lines...........................................................................................21
Digital I/O Module Peripheral Pinout.........................................................................22
Configuring for Isolated Digital I/O...........................................................................25
Connecting to a GPIO Peripheral ............................................................................... 26
Using with External Pull-ups......................................................................................28
Typical Connection..................................................................................................... 29
Chapter 3
Using the HP E1330B Digital I/O Module .................................................................31
Using This Chapter.....................................................................................................31
Addressing the Module...............................................................................................31
Operation Overview....................................................................................................32
Default and Reset States.............................................................................................33
Setting the Polarity......................................................................................................33
Setting the Handshake Mode......................................................................................34
Handshake Timing ..............................................................................................34
Inputting Data Bytes and Bits..................................................................................... 35
Input .................................................................................................................... 35
Outputting Data Bytes and Bits..................................................................................36
Output .................................................................................................................. 36
Multiple Port Operations ............................................................................................ 37
Using Trace Memory.................................................................................................. 38
Contents 1
Chapter 4
Understanding the HP E1330B Digital I/O Module .................................................41
Using This Chapter.....................................................................................................41
Port Description..........................................................................................................41
Data Lines .......................................................................... ......... ........................ 41
The FLG Line (Input) ..........................................................................................42
The CTL Line (Output) .......................................................................................42
The I/O
Line (Output) .........................................................................................42
The STS Line ...................................................................................................... 43
The PIR Line .......................................................................................................43
The RES
Line ...................................................................................................... 43
Default and Reset States.............................................................................................43
Setting the Polarity......................................................................................................43
Using the Handshake Modes......................................................................................44
Handshake Modes ............................................................................................... 45
Inputting Data Bytes and Bits..................................................................................... 50
Bit Input ...............................................................................................................50
Byte Input ............................................................................................................50
Outputting Data Bytes and Bits..................................................................................51
Bit Output ............................................................................................................51
Byte Output .........................................................................................................52
Multiple Port Operations ............................................................................................ 53
Multiple Port Handshaking .................................................................................53
Multiple Port Input/Output .................................................................................. 54
Chapter 5
HP E1330B Digital I/O Module Command Reference .............................................57
Using This Chapter.....................................................................................................57
Command Types.........................................................................................................57
Common Command Format ................................................................. ......... ......57
SCPI Command Format ...................................................................................... 57
Linking Commands .............................................................................................59
SCPI Command Reference.........................................................................................60
DISPlay Subsystem.....................................................................................................61
:MONitor:PORT ..................................................................................................61
:MONitor:PORT? ................................................................................................62
:MONitor[:STATe] ............................................................................................. 62
:MONitor[:STATe]? ............................................................................................63
MEASure Subsystem.................................................................................................. 64
:DIGital:DATAn[:type]:BITm? ..........................................................................64
:DIGital:DATAn[:type]:TRACe ......................................................................... 65
:DIGital:DATAn[:type][:VALue]? ..................................................................... 66
:DIGital:FLAGn? ................................................................................................ 67
MEMory Subsystem................................................................................................... 68
:DELete:MACRo ................................................................................................ 68
:VME:ADDRess ..................................................................................................69
:VME:ADDRess? ................................................................................................ 69
:VME:SIZE ......................................................................................................... 70
2 Contents
Chapter 5
HP E1330B Digital I/O Module Command Reference (continued)
MEMory Subsystem (continued)
:VME:SIZE? ........................................................................................................70
:VME:STATe ...................................................................................................... 71
:VME:STATe? .................................................................................................... 71
[SOURce:] Subsystem................................................................................................ 72
DIGital:CONTroln:POLarity .............................................................................. 74
DIGital:CONTroln:POLarity? ............................................................................ 74
DIGital:CONTroln[:VALue] ..............................................................................75
DIGital:CONTroln[:VALue]? .............................................................................75
DIGital:DATAn[:type]:BITm .............................................................................76
DIGital:DATAn[:type]:BITm? ............................................................................77
DIGital:DATAn[:type]:HANDshake:DELay .....................................................78
DIGital:DATAn[:type]:HANDshake:DELay? ....................................................79
DIGital:DATAn[:type]:HANDshake[:MODE] ..................................................80
DIGital:DATAn[:type]:HANDshake[:MODE]? ................................................. 81
DIGital:DATAn[:type]:POLarity ........................................................................82
DIGital:DATAn[:type]:POLarity? ...................................................................... 82
DIGital:DATAn[:type]:TRACe ..........................................................................83
DIGital:DATAn[:type][:VALue] ........................................................................ 84
DIGital:DATAn[:type][:VALue]? ...................................................................... 85
DIGital:FLAGn:POLarity ................................................................................... 86
DIGital:FLAGn:POLarity? ................................................................................. 86
DIGital:HANDshaken:DELay ............................................................................87
DIGital:HANDshaken:DELay? ..........................................................................88
DIGital:HANDshaken[:MODE] .........................................................................88
DIGital:HANDshaken[:MODE]? ........................................................................89
DIGital:IOn? ........................................................................................................89
DIGital:TRACe:CATalog? .................................................................................90
DIGital:TRACe[:DATA] .................................................................................... 90
DIGital:TRACe[:DATA]? ..................................................................................91
DIGital:TRACe:DEFine ......................................................................................91
DIGital:TRACe:DEFine? .................................................................................... 92
DIGital:TRACe:DELete:ALL .............................................................................92
DIGital:TRACe:DELete[:NAME] ...................................................................... 92
STATus Subsystem.....................................................................................................93
:OPERation:CONDition? .................................................................................... 94
:OPERation:ENABle ...........................................................................................94
:OPERation:ENABle? .........................................................................................94
:OPERation[:EVENt]? ........................................................................................ 94
:PRESet ............................................................................................................... 94
:QUEStionable:CONDition? ............................................................................... 95
:QUEStionable:ENABle ......................................................................................95
:QUEStionable:ENABle? ....................................................................................95
:QUEStionable[:EVENt]? ................................................................................... 95
Contents 3
Chapter 5 (continued)
SYSTem Subsystem ................................................................................................... 96
:CDEScription? ................................................................................................... 96
:CTYPe? .............................................................................................................. 96
:ERRor? ............................................................................................................... 97
:VERSion? ........................................................................................................... 97
IEEE 488.2 Common Commands............................................................................... 98
Command Quick Reference........................................................................................99
Appendix A
HP E1330B Digital I/O Specifications ......................................................................103
Appendix B
HP E1330B Digital I/O Module Register Information ...........................................105
Using This Appendix................................................................................................ 105
Addressing the Registers.......................................................................................... 105
The Base Address ..............................................................................................106
Register Offset ...................................................................................................108
Reset and Registers ...................................................................................................109
Register Definitions..................................................................................................109
Register Descriptions................................................................................................111
Manufacturer Identification Register ................................................................111
Device Identification Register ...........................................................................111
Card Status/ Control Register ............................................................................111
Port Interrupt Control Register ..........................................................................112
Port Transfer Control Register ..........................................................................113
Port Control/ Status Register .............................................................................114
Port Data Register .............................................................................................115
Port Handshake Register ...................................................................................116
Port Delay Register ...........................................................................................117
Port Normalization Register .............................................................................. 118
A Register-Based Output Algorithm ........................................................................119
A Register-Based Input Algorithm ...........................................................................120
Programming Examples............................................................................................121
System Configuration ........................................................................................121
Resetting the Module ......................................................... ......... ...................... 122
Reading the ID, Device Type, and Status Registers .........................................123
Writing an 8-Bit Byte ........................................................................................125
Writing a 16-Bit Word ......................................................................................127
Reading an 8-Bit Byte .......................................................................................128
Reading a 16-Bit Word ..................................................................................... 130
Debugging Basic Register-Based Programs ..................................................... 130
PIR Interrupts on the HP E1330 ........................................................................ 131
HP E1330B Non-data Line I/O .........................................................................136
Embedded Computer Example ..........................................................................140
4 Contents
Appendix C
Error Messages ..........................................................................................................143
Certification
Hewlett-Packard Company certifies that this product met its published specifications at the time of shipment from the factory. HewlettPackard 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
This Hewlett-Packard product is warranted against defects in materials and workmanship for a period of three years from date of shipment.
Duration and conditio ns of wa rrant y for this p roduc t may be su perseded when th e pro duct is in tegrate d in to (bec omes a part of) other HP
products. During the warranty period, Hewlett-Packard Company will, at its option, either repair or replace products which prove to be
defective.
For warranty service or repai r, this produc t must be return ed to a service facility design ated by Hewlett-Pa ckard (HP). Bu yer sha ll prep ay
shipping charges to HP and HP shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges,
duties, and taxes for products returned to HP from another country
HP warrants that its software and firmware designated by HP for use with a product will execute its programming instructions when
properly installed on that product. HP does not warrant that the operation of the product, or software, or firmware will be uninterrupted
or error free.
Limitation Of Warranty
The foregoing warranty sh all not apply to defects resu lting from im proper or ina dequate ma intenance by Buyer, Bu yer-supplie d products
or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper
site preparation or ma intenance.
The design and implementation of any circuit on this product is the sole responsibility of the Buyer. HP does not warrant the Buyer’s
circuitry or malfunctions of HP products that result from the Bu yer’s circuitry. In addition, HP does not war rant any damage that occurs
as a result of the Buyer’s circuit or any defects that result from Buyer-supplied products.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Exclusive Remedies
THE REMEDIES PROVIDED HEREIN ARE BUYER’S SOLE AND EXCLUSIVE REMEDIES. HP SHALL NOT BE LIABLE FOR
ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT,
TORT, OR ANY OTHER LEGAL THEORY.
Notice
The information contained in this document is subject to change without notice. HEWLETT-PACKARD (HP) MAKES NO
WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. HP shall not be liable for errors
contained herein or for incidental or consequential damag e s in connection with the furnishing, performance or use of this material. This
document contains proprietary infor mation which is pr otected by copyright. All rights are reserved. No part of this document may be
photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company. HP assumes
no responsibility for the use or reliability of its software on equipment that is not furnished by HP.
U.S. Government Restricted Rights
The Software and Documentation have been developed entirely at private expense. They are delivered and licensed as "commercial
computer software" as defined in DFARS 252.227- 7013 (Oct 1988), DFARS 252.211-7015 (May 1991) or DFARS 252.227-7014 (Jun
1995), as a "commercial item" as defined in FAR 2.101(a), or as "Restricted computer software" as defined in FAR 52.227-19 (Jun
1987)(or any equivalent agency regulation or contract clause), whichever is applicable. You have only those rights provided for such
Software and Documentation by the applicable FAR or DFARS clause or th e HP standard software agreement for the produ ct involved
HP E1330B Quad 8-Bit Digital I/O User’s Manual
Edition 7
Copyright © 1997 Hewlett-Packard Company. All Rights Reserved.
5
Documentation History
All Editions and Updates o f this manu al and t heir cre ation da te are li sted belo w. The first Edi tion o f the m anual i s Edition 1. The Edition
number increments by 1 whenever the manual is revised. Updates, which are issued between Editions, contain replacement pages to
correct or add additional information to the current Edition of the manual. Whenever a new Edition is created, it will contain all of the
Update information for the previous Edi tion. Each ne w Edition or Upd ate also incl udes a revised copy of this d ocumentation h istory page.
Edition 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Edition 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .September 1990
Edition 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . April 1992
Edition 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .September 1992
Edition 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .November 1993
Edition 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .June 1995
Edition 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .May 1997
Safety Symbols
Instruction manual symbol affixed to
Instruction manual symbol affixed to
product. Indicates that the user must refer to
product. Indicates that the user must refer to
the manual for specific WARNING or
the manual for specific WARNING or
CAUTION information to avoid personal
CAUTION information to avoid personal
injury or damage to the product.
injury or damage to the product.
Indicates the field wiring terminal that must
be connected to earth ground before
operating the equipme nt—protects against
electrical shock in case of fault.
WARNING
Alternating current (AC)
Direct current (DC).
Indicates hazardous voltages.
Calls attention to a procedure, practice , or
condition that could cause bodily injury or
death.
or
Frame or chassis ground terminal—typically
connects to the equipment' s metal frame.
CAUTION
Calls attention to a procedure, practice , or
condition that could p ossibly cause damage to
equipment or permane nt loss of data.
WARNINGS
The following genera l safety precautions must be observed during all phases of operation, service, and r epair of this produ ct. 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. Hewlett-Packar d Company assumes no liabilit y for the customer's failu re to comply with these requirements.
Ground the equipment: For Safety Class 1 equipment (equipment having a protective earth terminal), an uninterruptible safety earth
ground must be provided from the mains power source to the product input wiring terminals or supplied power cable.
DO NOT operate the product in an explosive atmosphere or in the presence of flammable gases or fumes.
For continued protection against fire, replace the line fuse(s) only with fuse(s) of the same voltage and current rating and type. DO NOT
use repaired fuses or short-circuited fuse holders.
Keep away from live circuits: Operating personnel must not remove equipment covers or shields. Procedures involving the removal of
covers or shields are for use by service-tr ained personnel on ly. Under certain conditions, dangerous voltages may exist even with the
equipment swi tched off . To avoid da ngerous el ectrica l shock, DO N OT perform procedure s involvin g cover or sh ield remova l unless you
are qualified to do so.
DO NOT operate damaged equipmen t: Whenever it is possible that the safety protection features built in to this product have been
impaired, either through physical damage, excessive moisture, or any other reason, REMOVE POWER and do not use the product until
safe operation can be verified by service-trained personnel. If necessary, return the product to a Hewlett-Packard Sales and Service Office
for service and repair to ensure that safety features are maintained.
DO NOT service or adjust alone: Do not attempt internal service or adjustment unless another person, capable of rendering first aid and
resuscitation, is present.
DO NOT substitute parts or modify equipment: Because of the dange r of introd ucing addi tional h azards, do not install substitute parts
or perform any unauthorized mod ification to the product. Return the product to a Hewlett-Packard Sales and Service Office for servi ce
and repair to ensure that safety features are maintained.
6
Declaration of Conformity
according to ISO/IEC Guide 22 and EN 45014
Manufacturer’s Name: Hewlett-Packard Company
Loveland Manufacturing Center
Manufacturer’s Address: 815 14th Street S.W.
Loveland, Colorado 80537
declares, that the product:
Product Name: Quad 8-Bit Digital I/O Module
Model Number: HP E1330B
Product Options: All
conforms to the following Product Specifications:
Safety: IEC 1010-1 (1990) Incl. Amend 1 (1992)/EN61010-1 (1993)
CSA C22.2 #1010.1 (1992)
UL 1244
EMC: CISPR 11:1990/EN55011 (1991): Group 1 Class A
EN50082-1:1992
IEC 801-2:1991: 4kVCD, 8kVAD
IEC 801-3:1984: 3 V/m
IEC 801-4:1988: 1kV Power Line, .5kV Signal Lines
Supplementary Information: The product herewith complies with the requirements of the Low Voltage Directive
73/23/EEC and the EMC Directive 89/336/EEC (inclusive 93/68/EEC) and carries the "CE" marking acco rdingly.
Tested in a typical configuration in an HP B-Size VXI mainframe.
June 15, 1995
European contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH, Depart-
ment HQ-TRE, Herrenberger Straße 130, D-71034 Böblingen, Germany (FAX +49-7031-14-3143)
Jim White, QA Manager
7
Notes:
8
Pl
ease fold and tape for ma
ili
ng
Reader Comment Sheet
HP E1330B Quad 8-Bit Digital I/O User’s Manual
Edition 7
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Using This Chapter
This chapter describes the Quad 8-bit Digital I/O Module and how to
program the Module using SCPI (Standard Commands for Programmable
Instruments) commands. This chapter contains the following sections:
• Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 11
• Instrument Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
• Downloading SCPI Drivers . . . . . . . . . . . . . . . . . . . . . . . . . Page 13
• Programming the Digital I/O Module. . . . . . . . . . . . . . . . . . Page 13
• Initial Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 16
Technical Description
The HP E1330B Quad 8-Bit Digital I/O Module (referred to as the Digital
I/O module) is a four port digital input/output module intended for data
communication and digital control in electronic environments. The Digital
I/O module is compatible with TTL levels (0-5V) or CMOS levels (using
external pull-ups). The Digital I/O module complies wi th VXIbus (VMEbus
Extensions for Instrumentation) definitions for the P1 bus connector on
B-sized modules. A jumper on the module sets the VXIbus interrupt level.
Chapter 1
Getting Started
Figure 1-1. HP E1330B Digital I/O Module
Getting Started 11Chapter 1
Each port is identical and con si st s of 6 cont ro l lines and 8 data lines. There
are 7 registers for control and status on each port. In addition, the module
also has Manufacturer ID, Device Type, and Module Status/Control
Registers. Figure 1-1 shows the locations of the ports and a simplified
diagram of a single port. Of the seven control lines, three (I/O
FLG) are used with SCPI commands and three (RES
, STS, and PIR) are
, CTL, and
controlled through register access. Chapte r 4 — “Understanding the
HP E1330B Digital I/O Module” contains detailed descriptions of these
lines.
Each port has two sets of hardware configuration jumpers. One set of
jumpers allows you to connect the FLG lines together for multi-port dat a
transmission. Another jumper selects either open collector operation or
internal pull-up to TTL compatible levels on the data lines. Chapter 2 —
“Configuring the HP E1330B Digital I/O Module” describes how to set
these jumpers.
SCPI commands provided for the Digital I/O allow opera tion on a singl e bit,
8-bit "BYTE" format, 16-bit "WORD" format (using 2 ports), or 32-bit
"LWORd" format (using 4 ports).
Table 1-1 shows the mapping of bit numbers from the 8-bit ports to the
16- or 32-bit ports. Chapter 5 — “HP E1330B Digital I/O Command
Reference” describes each command in detail and Chapter 3 — “Using the
HP E1330B Digital I/O Module” gives examples of the use of SCPI
commands.
Table 1-1. Data Lines
8-bit (BYTE) Operations
Port # 0 1 2 3
Bit designations 7------0 7------0 7------0 7------0
16-bit (WORD) Operations
Port # 0 2
Bit designations 15------8 7------0 15------8 7------0
32-bit (LWORd) Operations
Port # 0
Bit designations 31------24 23------16 15------8 7------0
Two 3-meter, 60-wire ribbon cabl es with an insulation displacement hea der
connector (ribbon cable c onnector) on o ne end a re incl uded with the Dig ital
I/O module. Additional cable sets can be ordered (HP part number
E1330-61601) from your nearest Hewlett-Packard Sales Office.
12 Getting Started Chapter 1
Instrument Definition
Each Digital I/O module installed in an HP mainframe is treated as an
independent instrument; having a unique secondary HP-IB address. Each
instrument is also assig ned a dedicated error queue, inpu t and output buffers,
status registers and, if applicable, dedicat ed mainframe memory space for
readings or data. Multiple Digital I/O modules cannot be combined into a
single instrument.
Downloading SCPI Drivers
The HP Digital I/O Driver allows the HP E1330B module to operate with
either B-size mainframes or HP E1405/06 Command Modules in a C-size
mainframe. The driver implements the Standard Commands for
Programmable Instrumentation (SCPI) command language. The B-size
HP E1300/E1301 Mainframe has a bui lt in driver, or can use a downloa dable
driver. The two driver s are slightl y differ ent and the diff erences are de tailed
in Chapter 5 — “HP E1330B Digital I/O Command Reference”.
To use the HP E1330B with a C- size mainframe and command module, you
must use a downloadable dr iver. The downloadable driver name for the
Digital I/O module is “DIG_IO”. The procedure for downloading the drivers
is contained in the HP E1405B and HP E1406A Command Module User
Guides.
Programming the Digital I/O Module
To program the Digital I/O module us ing SCPI commands, you will nee d to
know the controller language and int erface a ddresses you will be using. See
the HP 75000 Series B or Series C Installation and Getting Started Guide
for detailed interface addressing and controller language information.
Note This discussion applies only to SCPI (Standard Commands for
Programmable Instruments ) programming. See Append ix B — “Digital I/O
Register Information” for details on register addr essing. Do not mix SCPI
programming and direct register access.
Getting Started 13Chapter 1
SCPI Command
Format Used in This
Manual
SCPI commands can be used in either long or short form. A long form
example is:
DISPlay:MONitor ON
The same command, without the lower case letters, is the short form.
For example:
DISP:MON ON
Either the long form or th e short for m commands ca n be used to perform the
same result. The long and short forms can also be mixed within the same
program code. The commands are case insensitive, either upper or lower
case letters are accepted.
<> is a
Specifying SCPI
Commands
In the command examples shown above, the item enclosed in
parameter required to use the command, however, do not include the
brackets when sending the command. In this example, the parameter input
can be replaced with any one of the following:
allowable values of the parameters are given in Chapter 5 — “HP E1330B
Digital I/O Module Command Reference”. You must include at least one
space between the keywords and the parameter.
Some commands are shown with items enclosed in square brackets (
These are implied or optional items that do not have to be included. For
example, the complete command syntax listing for the first example is:
DISPlay:MONitor[:STATe] <0|1 or OFF|ON>
The item enclosed in brackets, [:STATe], does not have to be i ncluded for the
command to work. Complete descr ip ti ons of the SCPI command language,
syntax, parameter types, and usage are in Chapter 5 of this manual.
SCPI command s related to the Digital I/O module use three types of
parameters to specify a port number, a bit number, or a multiple port
combining operation. Each type is briefly described here. Descriptions and
examples of usage can be found in Chapter 3 of this manual.
0, 1, OFF, or ON. The
Specifying a Port The Digi tal I/O module has four identical por ts numbered from 0 to 3. SCPI
commands that relate to a specific port use a special parameter to indicate
the port number. For example:
[]).
[SOURce:]DIGital:DATAn <value>
This command writes the parameter
portion of the
the number the last character of the
example, to set all port 2 data lines to logical zero, use the command:
[SOURce:]DIGital:DATA2 0
The value of n may vary for multiple port commands and operations. A
description of multiple port commands is on page 15.
14 Getting Started Chapter 1
DATA keyword. Replace the n with the port number, making
<value> to the port specified by the n
DATA keyword without spaces. For
Specifying a Bit Each of the four ports on the module has eight bi-directional data lines,
corresponding to eight programmable data bits. Some SCPI commands
allow you manipulate or read these bits individually. For example:
MEASure:DIGital:DATAn:BITm?
This command reads the state of a bit, specified by m, on port n. The result
will be either 0 or 1, indica ting the current l ogical state of the bit. Replac e m
with the desired bit number, and n with the desired port number, making
each number the last characters of the
spaces. For example, to read bit 7 on port 0, use the following command:
MEASure:DIGital:DATA0:BIT7?
For single ports, the value of m can range from 0 to 7. Some multiple port
operations and commands may allow bit numbers to range from 0 to 31.
DATA and BIT keywords without
Specifying Multiple Port
Operations
The Digital I/O modul e all o ws you to set or read multiple ports or b its with
a single command. For example:
MEASure:DIGital:DATAn[:type]?
This command uses an opti onal keyword, [:type], to specify how many ports
are combined in a single re tur n ed val ue. T he l o wer cas e ke yword
[:type] is
replaced with one of a fixed set o f keywords. For exam ple, to read al l 4 ports
(all 32-bits) as a single returned value, use the command:
MEASure:DIGital:DATA0:LWORd?
Keywords are provided to allow port combin ation s of 16- or 32-bits. Us ing
multiple ports is described in more detail in Chapt er 4 of this manual.
Getting Started 15Chapter 1
Initial Operation
Use the following example t o verify init ial operati on. The example first sets
and then queries the polarity of a logical true condition on the port 0 FLG
line. The example uses an HP Ser ies 200/30 0 Computer with HP BASIC as
the programming language. The computer is connected to an HP E1301
Mainframe using the Hewlet t-Packard Interface Bus (H P-IB)*. The HP -IB
interface select code is 7, the HP-IB primary address is 09, and the HP-IB
secondary address (used to specify the Digital I/O module) is 18. Refer to
the B-Size Installation and Getting Started Guide for more details.
10 ASSIGN @Dio TO 70918
20 DIM Polarity$[3]
30 OUTPUT @Dio;"*RST"
40 OUTPUT @Dio;"*OPC?"
50 ENTER @Dio;Ready
60 OUTPUT @Dio;"SOUR:DIG:FLAG0:POL POS;*OPC?"
70 ENTER @Dio;Ready
80 OUTPUT @Dio;"SOUR:DIG:FLAG0:POL?"
90 ENTER @Dio;Polarity$
100 IF Polarity$ <> "POS" THEN
110 DISP "Polarity Check ERROR"
120 PAUSE
130 ELSE
140 DISP"Polarity set to "&Polarity$
150 END IF
160 OUTPUT @Dio;"SOUR:DIG:F LAG 0 :PO L NEG;*OPC?"
170 ENTER @Dio;Ready
180 OUTPUT @Dio;"SOUR:DIG:F LAG 0 :POL? "
190 ENTER @Dio;Polarity$
200 IF Polarity$ <> "NEG" THEN
210 DISP "Polarity Check ERROR"
220 PAUSE
230 ELSE
240 DISP"Polarity set to "&Polarity$
250 END IF
260 OUTPUT @Dio;"*RST"
270 OUTPUT @Dio;"*OPC?"
280 ENTER @Dio;Ready
290 END
!Sets an I/O path to the module.
!Reset the module.
!Wait for the module to finish.
!Hold here until command is
finished.
!Set POSitive polarity.
!Wait for finish.
!Query the polarity state.
!Get the result.
!Check the result.
!Error discovered.
!Pause on error.
!Set NEGative polarity.
!Wait for finish.
!Query the polarity state.
!Get the result.
!Check the result.
!Error discovered.
!Pause on error.
!Restore the module.
!Wait for the module to finish.
* HP-IB is Hewlett-Packard’s implementation of IEEE Std 488.1-1984.
16 Getting Started Chapter 1
Configuring the HP E1330B Digit a l I/O
Using This Chapter
Chapter 2
Module
This chapter shows how to configure the Digital I/O module for use in a
VXIbus mainframe, connect peripheral devices, and configure the module
for operation. Refer to Figure 2-1 for locations of jumpers and switches. This
chapter contains the following sections:
• Setting the Address Switch. . . . . . . . . . . . . . . . . . . . . . . . . . Page 18
• Enabling Pull-ups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
• Selecting the Interrupt Line. . . . . . . . . . . . . . . . . . . . . . . . . . Page 20
• Combining the Flag Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
• Digital I/O Module Peripheral Pinout. . . . . . . . . . . . . . . . . . Page 22
• Configuring for Isolated Digital I/O . . . . . . . . . . . . . . . . . . . Page 25
• Connecting to a GPIO Peripheral . . . . . . . . . . . . . . . . . . . . . Page 26
• Using with External Pull-ups . . . . . . . . . . . . . . . . . . . . . . . . Page 28
• Typical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 29
Figure 2-1. HP E1330B Digital I/O Module
Configuring the HP E1330B Digital I/O Module 17Chapter 2
Setting the Address Switch
Refer to Figure 2-1. In the center rear of the module, next to the P1
connector, you will fi nd the logical address switch. It s factory sett ing is 144;
rockers 4 and 7 a re closed, all othe rs are open. You can select the addr ess of
the Digital I/O module to any number 0–255 (d eci mal ). The defaul t se tt ing
of the address switch is shown in Figure 2-2.
Note To be recognized as an instrument when you are using the Digital I/O
module in an HP E1300/1301 Mainframe or with an HP E1405 or E1406
Command Module, the logical address must be set to a multiple of 8.
Figure 2-2. Logical Address Switch Set at 144
18 Configuring the HP E1330B Digital I/O Module Chapter 2
Enabling Pull-ups
Note The jumper in the enabled posit ion does not add an i nput pull -up res isto r to
Referring to Figure 2- 1, no te the pull-up enable jumpers near the middle of
each of the large ICs. The data lines of each port can be independently
configured for either passive or active pull-up to TTL high levels. The
factory-shipped condition is pull-up disa bled for all ports. The data lines
may be either inputs or outputs. When the data lines are outputs, and the
jumper is in the enabl ed position, the outputs are acti vely forced high. When
the data lines are inputs, the jumper position makes no difference.
each data line, it enables a chip-internal pull-up network.
Each data line has an active resistive terminating network. The active
circuitry ensures that when power is removed from the module, the data
lines are not loaded. With power applied, the resistive terminating network
is equivalent to that shown in Figure 2-3.
Figure 2-3. Equivalent Data Line Termination
Configuring the HP E1330B Digital I/O Module 19Chapter 2
Selecting the Interrupt Line
The VXI peripheral i nterrupt bus consists o f seven lines which can car ry the
interrupt signal to th e commander. The most common li ne to be used is line
one, as this is the usual default interrupt line. Many VXIbus commanders
have a way to change the interrupt line they manage (for example, the
E1405/06 has an interrupt line allocation table). When doing direct
register-based programming, instead of using the SCPI driver, set the
interrupt line to a line that is not used by the SCPI driver. Module interrupt
priority can be established with these lines. In general, the higher the line
number, the higher the priority.
Referring to Figure 2-1, near the P1 connector you will find two sets of
jumper pins labeled X and 1 through 7 (JM15 and JM16). The Digital I/O
module is factory-shipped with the interrupt set to 1. If you need to change
the interrupt level you must move both jumpers on the blocks. Spare
jumpers, used for combining the flag (FLG) lines, are stored on the unused
ground pins of this connector when it ships from the factory.
Figure 2-4. Priority Interrupt Connector (Factory Setting)
Note The interrupt circuitry for the HP E1330B is implemented as release on
interrupt acknowledge (ROAK). The HP E1330B Digital I/O module will
de-assert (or release) the interrupt request line during an interrupt
acknowledge cycle.
The interrupt circuitry on the HP E1330A is implemented as release on
register access (RORA). The HP E13 30A Di gital I/O module will cont inu e
to assert the interrupt request line until the Port Control/Status Register on
the Digital I/O module is accessed.
Both the HP E1330A and HP E1330B may be used with the HP E1300A/
E1301A and with the HP E1405A/B and HP E1406A. If you are using
HP Compiled SCPI (i.e., HP E1570A), you must use the HP E1330B.
20 Configuring the HP E1330B Digital I/O Module Chapter 2
Combining the Flag Lines
Each port contains a Flag Line, labeled FLG, that can be use d to implement
a handshake scheme with a peripheral. For single port operations, the FLG
lines can be used in the factory default setting (no flag lines combined) to
handshake with a peripheral. For multi-port operations with a single
handshake line, you can combine the flag line from multiple ports. The
combined flag lines are physically tied together. An ac tion on any of the
combined flag lines performs that action for all combined flag lines.
Figure 2-5 shows the locations of the flag combining switches and how to
set them. Before setting any flag combine switches, you may wish to read
the discussion regarding allowable port combinations and handshaking in
Chapter 4 of this manual.
Note When using FLG and CTL for handshaking on multiple port operations,
CTL is set for each port sequentially, beginning at the lowest numbered
port.
Figure 2-5. Flag Combine Switches
Configuring the HP E1330B Digital I/O Module 21Chapter 2
Digital I/O Module Peripheral Pinout
Figure 2-6 shows pinouts for the Digital I/O module connectors. Each is
compatible with easy cr imp connections to ri bbon cables for standar d digital
I/O interfacing. Figure 2-7 shows the data line location on the supplied
ribbon cables. Figure 2-8 shows how to connect the cables. Detail s about the
functioning of these pins i s covered in Chapt er 4 — “Understandin g the HP
E1330B Digital I/O Module but line names are as follows:
RES
STS Status Line - used as an auxiliary hand shake line. Input
PIR Peripheral Interrupt Line - used to si gnal a peripheral
FLG Flag Line - used to handshake data between a
CTL Control Line - used to handshake data between a
I/O
Reset Line - used to res et a peripheral. Output from the
Digital I/O module.
to the Digital I/ O module.
interrupt. Input to the Digital I/O module.
peripheral and the Digital I/O module. Controlled by
the peripheral. Input to the Digital I/O module.
peripheral and the Digital I/O module. Controlled by
the Digital I/O module. Output from the Digital I/O
module.
Input/Output Line - used to establish input or output
on a port. Controlled by the Digital I/O module. Input
to the Digital I/ O module.
22 Configuring the HP E1330B Digital I/O Module Chapter 2
Figure 2-6. J1 and J2 Connector Pinouts
Configuring the HP E1330B Digital I/O Module 23Chapter 2
Figure 2-7. Data Line Location on Ribbon Cables
Figure 2-8. Connecting the Digital I/O Cable
24 Configuring the HP E1330B Digital I/O Module Chapter 2
Configuring for Isolated Digital I/O
The two Digital I/O module per iph era l connectors, J1 and J2, each have 60
pins. An industry standar d isolated di gital I/O peri pheral, like the Opto 22
16 Position Single Channel Mounting Rack, is a 50-pin connection. The
connector is either a card edge or a header connector (similar to J1 on the
Digital I/O module). For exa m ple, the Opto 22
edge connector; PB16H uses a header connector. They both have the same
pin-out for the ribbon ca ble. Both can accommodate up to 16 single chann el
I/O lines.
12 of the wires on the supplied ribbon cable are not connected. Figure 2-8
shows the ribbon cable connect ions. The method of connection to the ribbon
cable can be faci lit ated by the use of sp ecial ty f ixtur es fo r th ese connec tors ,
but there is no standard for connector keys or spacing.
For the Opto 22
Pins 27–57 on the ri bbon cable, od d numbered pins on ly, correspo nd to pins
17–47 on the Opto 22
connect pins 1 and 49 on the Opto 22
Procedure 1. Carefully cut lines 1-11 on the ribbon cable and line 59. A tan wire
should be the first wire on the ribbon cable after you make the cut.
rack, lines 1–10 are not used on th e peripher al conne ctor.
rack. All even numbered pins are ground. Do not
rack, PB16C, uses a card
rack connector.
2. Select the 50-pin connector you need , either edg e connecto r or heade r
connector and attach the ribbon cable.
3. Connect the ribbon cable to the Opto 22
digital operation.
Opto 22 is a registered trademark of Opto 22, Huntington B each, CA 92649
rack for optically isolated
Configuring the HP E1330B Digital I/O Module 25Chapter 2
Connecting to a GPIO Peripheral
The GPIO interface is a widely used standard parallel interface for
connecting computers to peri pherals. The GPIO interface may em ploy up to
32-bits of bi-directional data transfer. The Digital I/O module and the GPIO
interface have identical line definitions but diff erent pin assignments.
Ports A-D on the GPIO are defined as ports 0-3 on the Digital I/O module.
Procedure 1. Connect the ribbon cable to connector J1 and/or J2 on the Digi ta l I/O
module.
2. Connect the wires on the ribbon cable to the peripheral as described
in Table 2-1 for the GPIO interface.
Figure 2-9. Typical Isolated Peripheral Hookup
26 Configuring the HP E1330B Digital I/O Module Chapter 2
Table 2-1. Digital I/O Pinout to GPIO Pinout
Port 0
Digital I/O GPIO
Connector J1 J2 Connector J1 J2
Name Pin # Pin# Name Pin# Pin#
D00
D01
D02
D03
D04
D05
D06
D07
RES0
STS0
PIR0
FLG0
CTL0
I/O0
Connector J2 J1 Connector J2 J1
43
45
47
49
51
53
55
57
5
9
13
17
21
25
Port 2
Digital I/O GPIO
33
15
34
16
35
17
36
18
12
26
9
27
13
31
D10
D11
D12
D13
D14
D15
D16
D17
RES1
STS1
PIR1
FLG1
CTL1
I/O1
Port 1
Digital I/O GPIO
27
29
31
33
35
37
39
41
3
7
11
15
19
23
Port 3
Digital I/O GPIO
22
21
20
19
29
25
30
11
4
3
2
1
8
7
Name Pin # Pin# Name Pin# Pin#
D20
D21
D22
D23
D24
D25
D26
D27
RES2
STS2
PIR2
FLG2
CTL2
I/O2
For the Digital I/O connectors, all even numbered pins are ground.
For the GPIO connector, pins 5, 6, 10, 14, 23, 24, 28 and 32 are ground.
43
45
47
49
51
53
55
57
13
17
21
25
33
15
34
16
35
17
36
18
5
9
12
26
9
27
13
31
D30
D31
D32
D33
D34
D35
D36
D37
RES3
STS3
PIR3
FLG3
CTL3
I/O3
27
29
31
33
35
37
39
41
11
15
19
23
4
22
3
21
2
20
1
19
3
7
29
8
25
7
30
11
Configuring the HP E1330B Digital I/O Module 27Chapter 2
Using with External Pull-ups
The Digital I/O module data lines can be used in an open collector
configuration. Connections for open collector require the use of external
power supplies and pull-up resistors. The internal pull-up mode of the
Digital I/O module should be d isabled for open collecto r output. Figure 2-10
shows a single data line connection. The value of the pull-up resistor is
calculated as follows:
Vcc 5.0 Vdc=
Imax Iout
Vcc
----------- -
R
Imax
The value of TTL high with the 200 Ω pull-up resistor is calculated as
follows:
V
High
Vcc
safety_factor× 48mA 0.52× 25mA===
Low
5
------------ -
0.025
-------------------------- -
× 4.84Vdc==
6200 200+
200Ω== =
6200
Figure 2-10. T ypical Open Collector Data Line
28 Configuring the HP E1330B Digital I/O Module Chapter 2
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