Omega OM-320 User guide

OM-320

OMEGAnetSM On-Line Service

http://www.omega.com

Servicing North America:

Internet e-mail

[email protected]

USA:

Canada:

One Omega Drive, Box 4047
Stamford, CT 06907-0047
Tel: [phone]
e-mail: [email protected]

976 Berger
Laval (Quebec) H7L 5A1
Tel: [phone]
e-mail: [email protected]

FAX: [phone]

FAX: [phone]

For immediate technical or application assistance:

USA and Canada:

Mexico and
Latin America:

Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA
Customer Service: 1-800-622-2378 / 1-800-622-BEST
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Tel: (95) 800-TC-OMEGA
En Espanol: (95) 203-359-7803

SM

FAX: [phone]
e-mail: [email protected]

SM

SM

SM

Servicing Europe:

Benelux:

Czech Republic:

France:

Germany/Austria:

United Kingdom:

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that
apply. OMEGA is constantly pursuing certification of its products to the European New Approach
Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient connected applications.

Postbus 8034, 1180 LA Amstelveen, The Netherlands
Tel: [phone]

Toll Free in Benelux: 06 0993344
e-mail: [email protected]

ul. Rude armady 1868
733 01 Karvina-Hranice
Tel: [phone]
e-mail:[email protected]

9, rue Denis Papin, 78190 Trappes
Tel: [phone]
Toll Free in France: 0800-4-06342
e-mail: [email protected]

Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel: [phone]

Toll Free in Germany: 0130 11 21 66
e-mail: [email protected]

25 Swannington Road,
Broughton Astley, Leicestershire,
LE9 6TU, England
Tel: [phone]
FAX: [phone]

Toll Free in England: 0800-488-488

e-mail: [email protected]

FAX: [phone]

FAX: [phone]

FAX: [phone]

FAX: [phone]

P.O. Box 7, Omega Drive,
Irlam, Manchester,
M44 5EX, England
Tel: [phone]
FAX: [phone]

1... INTRODUCTION

1... INTRODUCTION

MANUAL OVERVIEW

This User’s manual provides information relative to the use of the OM-320 Portable
Data Logging System. The manual is organized into sections describing the main
components of a OM-320 system, from the System Base through the various
features within the provided software. The last section of the manual consists of the
Appendices which give detailed specifications and information for general reference
and advanced applications.

After following the instructions for the installation of the HyperWare software, much
can be learned by exploring this manual, the software and the hardware in any
order... without concern for damaging results. However, it is HIGHLY

RECOMMENDED that this User’s manual be read in its entirety before deploying the
OM-320 in a real application.

A note on the keyboard / mouse convention used within this manual... Throughout
the manual, instructions on PC keyboard entry or menu selections via mouse are
specified by using italic print such as ENTER which refers to the `Enter’ Key on the
keyboard or FILE which refers to the menu item titled `FILE’.

OM-320 SYSTEM: `THE BIG PICTURE’

The OM-320 is a battery powered portable data logging and control system. It can be
left at a site to collect data from various analog and digital signal or sensor inputs.
This data is mathematically processed by the OM-320 and stored in its internal
memory while simultaneously performing basic onsite alarm and control functions.
The collected data is then transferred to a PC running the supplied HyperWare
software for data display and analysis.

OM-320 SYSTEM COMPONENTS

A OM-320 portable data logging system consists of a number of components... both
hardware and software.

The main components are listed below and details follow:

♦ OM-320 System Base
♦ Interface Modules
♦ HyperWare, Windows based software
♦ Options such as modems, PCMCIA, etc

USING THE OM-320

1-1

1... INTRODUCTION

OM-320 System Base

The OM-320 System Base (See Figure 1... -1) refers to the main data logger
unit housed in its weatherproof enclosure. The System Base houses the
battery pack, the Terminal Strip Adapter, and the main OM-320 front panel
with its associated plug-in ports for User installation of Interface Modules.

Quick Reference card(s)

Battery Pack

Alarm Switches

Gland Fitting

Screwdriver

LCD Display

NEXT

SELECT
ENABLE
STOP

RESET

RS-232 Port

User Buttons

Front Panel

Vent Screw

Terminal Strip Adapter

Thumbscrew

I/O Plate

HL001

1-2

Interface Modules

Interface Modules (See Figure 1... -2) are plug-in circuit board assemblies
that provide the interface to various types of inputs and output signals. The
Interface Modules can be User installed into the System Base then
configured for the specific type of signal or sensor to be connected to the
OM-320. Interface Modules are configured via software and/or switch
settings on the modules.

A family of Interface Modules is available for interface to various input signal
types such as thermocouples, RTD’s, voltage, current, frequency, event, etc.
Additionally, Interface Modules are available with outputs for digital alarm
and basic ON/OFF control functions.

Configuration Switches

HL002

Mounting Bracket

Figure 1... -2; Interface Module

USING THE OM-320

1... INTRODUCTION

HyperWare™ Software

Supplied with the OM-320 is a powerful Windows based software package
called HyperWare. HyperWare, running on an IBM compatible PC under the
Microsoft Windows environment provides a multitude of functions for setup
of the OM-320 as well as analysis of collected data including:

♦ Serial Communications support between the PC and the

OM-320 for RS-232 and telephone modem links

♦ Programming of the OM-320 using the powerful

HyperNet™ visual icon based programming method

♦ Multi-channel, graphic data display of previously

collected data using HyperPlot™

♦ Screen captures of HyperPlot graphs for seamless

integration into other Windows based software
applications such as wordprocessors, spreadsheets, or
desk-top publishing packages

♦ Conversion of collected data files to ASCII text or

Microsoft Excel file formats

♦ Powerful mathematical data manipulation of collected

data during conversion to HyperPlot graphs, ASCII text
files and Excel files

♦ HyperTrack™ real-time data display of OM-320 inputs

and HyperNet nodes

Additional Components

Special function modules are available to provide:

Telephone Modem Interface - plug-in modules that contain integral
low power 2400 Baud or 14.4 Kbaud telephone modems. These
modules allow for direct connection to standard telephone lines for
data transfer, reprogramming, and control...all from a remote PC
running HyperWare.

PCMCIA Memory Card Interface - plug-in module provides a
socket and interface circuitry for removable PCMCIA memory card
support. When utilized, the OM-320 stores data to the credit card
sized PCMCIA card. At any time, the card can be unplugged from
its socket and carried or shipped to a another site where the data
can be downloaded to a PC. Advantages of the PCMCIA card
include massive data storage capability, easily transportable data,
and field data collection by non-technical staff.

Special Serial Communications Interface - a variety of special
serial communication types and protocols are available for serial
signal interface. Contact Omega Engineering about your specific
application requirement.

Included with each OM-320 portable data logging system are a number of
other items including this manual, DB-9 and DB-25 to RJ-12 adapters, RS­232 cable, a plug-in power supply, and liquid-tight fittings.

USING THE OM-320

1-3

1... INTRODUCTION

FEATURES

Designed with the User in mind, the OM-320 portable data logging system has a
multitude of integral features ranging from special hardware considerations to
unlimited software programmability and data review. Key features include:

♦ Up to 24 channels of analog input or 48+ digital input/outputs
♦ Configurable Interface Modules accept a multitude of signal

types and ranges all on a single module.

♦ Low power design allows for field logging up to 3 weeks from a

set of commonly available D-Cells.

♦ Terminal Strip Adapter wiring system allows for quick connect

and disconnect of the sensor and signal wiring harness. Using
this feature, the OM-320 can readily be moved and connected
up at different sites, with a minimum of setup time.

♦ Five integral alarm outputs including two relays
♦ True Microsoft Windows based HyperWare software... included

with the OM-320.

♦ Powerful HyperPlot graphic data display software with seamless

integration of plotted data into other Windows applications.

♦ HyperNet visual icon based programming provides unlimited

flexibility in programming, yet maintains simplicity with drag and
drop icon configuration. Set the OM-320 up without writing
cryptic lines of code nor experiencing the rigors of excruciating
two button menu tree nightmares.

♦ Intelligent logging methodologies include logging only upon

change of an input (Delta-Logging), Conditional logging based
on input levels, Conditional logging based on time of day or
elapsed time, dual speed logging initiated by User programmed
conditions, and more.

♦ Real-Time display (on integral liquid crystal display) of User

defined node points... ranging from raw input signals to
intermediate processed data to data logged to memory.

♦ User defined alarm messages
♦ Pager call-out upon User defined alarm conditions

1-4

USING THE OM-320

SUMMARY OF STEPS IN UTILIZING THE OM-320

In a typical application of the OM-320 portable data logging system, the following
sequence of steps would be involved. Details of each step are presented in later
sections of this manual.

1. Install the required Interface Modules into the OM-320 System
Base. Configure Interface Module hardware switches if
applicable (eg enabling a front end divider for the +/-30VDC
range on the HLIM-1)

2. Connect up to the OM-320 via a serial link from your PC. Start
HyperWare and change to the HyperNet Development Screen.

3. Query the OM-320 for its current hardware configuration by
clicking the NEW button.

4. Construct a Program Net for this logging session by dragging
and dropping icons onto the HyperNet screen, then connecting
signals between the icons. Save the Program Net to disk and
print out a Terminal Strip Adapter wiring diagram for field
reference.

5. Transfer the Program Net to OM-320 memory via the serial link
and disconnect the serial link.

6. Install the OM-320 at the site and make the appropriate wiring
connections to the Terminal Strip Adapter and modem (if used).

7. Enable the OM-320, then as a quick pre-departure check, check
readings at various pre-programmed HyperProgram net nodes
using the Next and Select buttons while viewing the OM-320
display.

8. Close the door on the OM-320 and collect data.

9. Later, connect up to the OM-320 via a serial link (RS-232 or
modem) or retrieve the PCMCIA memory card and from within
HyperWare, download the OM-320 memory to a file on the PC.

10. For a fast and immediate review of the collected data, double­click on the data icon and HyperPlot will automatically load and
graphically display the collected data.

11. Save the desired HyperPlot graphic view as a Windows Bitmap
file , then switch to your Windows based wordprocessor and
seamlessly insert the saved graphic into your test report.

12. Optionally, use the HyperWare Post-Processing capability to
configure a special data reduction/ conversion icon network.
Then run the collected data file through the post processor and
generate a text file, Excel Spreadsheet file or another HyperPlot
file.

1... INTRODUCTION

USING THE OM-320

1-5

1... INTRODUCTION

APPLICATIONS

Portable, self-contained, and of low-power design, the OM-320 can be deployed for
data collection in multitudes of applications. Data collection, data reduction,
intelligent logging, and alarming are all readily implemented with the flexibility of
HyperNet programming. The rugged hardware coupled with powerful, yet simple to
use, software allows for unlimited applications. Applications include:

♦ Vehicle testing
♦ Power monitoring and Energy audits
♦ Well pump down and slug testing
♦ Waste Water pump station performance and loading analysis
♦ Process monitoring with alarming upon `out of condition’

performance

♦ HVAC performance monitoring
♦ Laboratory experiment data collection
♦ Variable speed drive performance monitoring
♦ Oven profiling

1-6

USING THE OM-320

2... OM-320 SYSTEM BASE

2... OM-320 SYSTEM BASE

SYSTEM BASE OVERVIEW

The OM-320 main enclosure with its associated battery pack, front panel, wiring
terminals, etc is called the System Base. The System Base contains the main
microprocessor, memory, power supplies, analog to digital converter, and supporting
circuitry. Additionally, the System Base contains connectors for plug-in of Interface
Modules. The following major components of the System Base are detailed within
this section.

♦ Enclosure
♦ System Power and Batteries
♦ Terminal Strip Adapter; I/O Wiring
♦ Interface Module Backplane
♦ Front Panel

ENCLOSURE

The OM-320 (Figure 2..-1) is housed in a durable plastic weatherproof enclosure that
doubles as a carrying case. The enclosure has a gasketed door seal and with proper
installation, the OM-320 can withstand most process and field conditons with the

exception of direct immersion.

Quick Reference card(s)

Battery Pack

Screwdriver

Alarm Switches

Gland Fitting

LCD Display

NEXT

SELECT
ENABLE

STOP
RESET

RS-232 Port

User Buttons

Terminal Strip Adapter

Thumbscrew

I/O Plate

HL001

Figure 2..-1: OM-320 System Base Components

Front Panel

Vent Screw

The hinged front door features two latches that are released by pulling outward on
the molded tabs. For security, the top latch can be equipped with a padlock.

USING THE OM-320

2-1

2... OM-320 SYSTEM BASE

VENT SCREW

A vent screw is provided (black knob by the carrying handle) for equalization
of internal and external pressure during exposure to radically varying
barometric conditions such as during transport via airplane or over extreme
elevation changes. Loosening this knob a few turns will allow pressures to
equalize and re-tightening the knob will seal the vent. In most applications,
pressures will be equalized through minor leaks around the wiring egress
fittings and use of the vent is not necessary.

INPUT / OUTPUT WIRING PLATE

At the bottom of the enclosure, four thumb-screws hold the I/O Wiring Plate
in place. This plate has six holes sized for the supplied gland type sealing
fittings. An integral gasket seals the plate to the enclosure. Use of jacketed
wire for sensor wiring will result in an excellent seal to the fittings and
maintain the integrity of the System Base.

TIP:For special customer applications, an I/O plate
without fitting holes is available from Omega Engineering.
This plate can be machined by the User for their
particular I/O needs.

MOUNTING

The OM-320 can be wall mounted by attaching the supplied hanger to the
back face of the OM-320 enclosure with the supplied machine screws. To
attach the hanger refer to Figure 2..-2 and perform the following steps:

Hanger

Figure 2..-2: System Base Hanger (back view)

Phillips Head Machine Screws

Back of HyperLogger

HL003

1. Locate and remove the two phillips style flathead screws
on the back (near the top) of the OM-320.

2-2

USING THE OM-320

2. Align the supplied hanger with the mounting holes and

3. In the event that the hanger is removed, the two

SYSTEM POWER

Main Batteries

The OM-320 is powered from six D-cells mounted in a battery pack on the
lid (See Figure 2..-3). To access the batteries, remove the two thumbscrews
and the black cover. The batteries can then be replaced by popping them
out of the holders and reinstalling new batteries while observing polarity.
Align the batteries with the positive terminal toward the holder end marked

2... OM-320 SYSTEM BASE

and reinstall the two flathead machine screws, tightening
them securely.

flathead machine screws should be reinstalled into the
back of the enclosure and tightened securely to reseal
the mounting holes.

Battery Pack

with a red washer. The battery pack cover fits correctly only one way... if it
doesn’t fit, flip it over.

Alkaline D-cells are recommended as they contain significantly more
energy than standard or `heavy-duty’ cells and will provide substantially
longer recording capability. Depending on the Program Net within the OM­320, a fresh set of alkaline D-cells can power the OM-320 for up to 2 months
of logging.

External Power

For long term and/or semi-permanent applications of the OM-320, an
external power source may be used. If an external power supply is
connected to the OM-320 via the Terminal Strip Adapter ( page 2-4) and its
supply voltage is greater than approximately 12 VDC, the OM-320 will
operate from the external supply and the batteries will not be used. In the

HL004

Red Polarity Washers

Figure 2..-3: OM-320 Battery Pack

USING THE OM-320

2-3

2... OM-320 SYSTEM BASE

event that the external power fails, the OM-320 will automatically transfer to
battery power and continue operation.

Memory and RTC Power

The OM-320 utilizes static ram for internal data storage which requires a
constant power supply to maintain its memory. Similarly, the Real Time
Clock (RTC) that keeps track of the date and time within the OM-320 runs
continually whether the main power switch is ON or OFF.

When the main power is ON, the memory and RTC draw their power from
the D-Cell batteries (or a connected external power supply). When the main
power is switched OFF, power for memory and the RTC automatically
switches to a small coin type lithium cell that is mounted on the main OM­320 circuit board.

This cell will provide power for the RTC and memory for approximately one
year. Any time that the OM-320 main power is ON extends this lifetime. At
any time, the approximate state of charge of the lithium cell can be
displayed on the LCD under the SYSTEM STATUS / SUPPLY VOLTAGES
menu or from a serially connected PC running HyperWare with the Status
Query command. For lithium cell replacement procedure, refer to Appendix
D.

TERMINAL STRIP ADAPTER; I/O WIRING

The Terminal Strip Adapter (TSA) is a removable assembly that provides a
convenient method of connecting input and output (I/O) wiring to the OM-320 (see
Figure 2..-4). By using the TSA, a large quantity of wires can be connected and
disconnected with a minimum of effort. Wiring connections for power, sensor/signal
inputs, CJC sensing, and alarm outputs are all handled through the Terminal Strip
Adapter.

Terminal Strip Adapter (TSA)

Retaining Thumbscrew

Figure 2..-4: Terminal Strip Adapter (TSA)

Making I/O Wiring Connections

The TSA is held in place with a thumbscrew located in the center of the
board. To make wiring connections to the TSA, remove this thumbscrew
and unplug the TSA. Wiring can then be routed through the fittings and I/O
plate at the bottom of the OM-320 and secured into the various terminal
locations on the TSA.

OUTPUTS

PORT 1

INT EXT
CJC

PORT 5

PORT 6

PORT 4PORT 3PORT 2

HL005

EXT
PWR

2-4

USING THE OM-320

TIP: When constructing a Program Net from within
HyperNet, one of the menu options will print out a TSA
wiring connection list for use during field wiring of the
OM-320. Details on generating this printout are covered
in the HyperNet Chapter.

After making the desired connections, plug the TSA back into the OM-320
and organize the wiring within the compartment, sliding extra wire out
through the the fittings. Reinstall the TSA retaining thumbscrew and tighten
the fittings.

Terminal Strip Connections

The TSA has silkscreen markings indicating specific I/O wiring connections
for the various terminal strips. Additional details for these connections
follow:

Port 1 to 6

The terminal strips labeled with a port number refer to one of the
Interface Module ports. When the Interface Module is installed, all
interface wiring (signal input, control output, etc) required by the
Interface Module is routed through the System Base and out to the
TSA. Each Interface Module has unique input and output wiring
requirements and is available on the Interface Module instruction
sheet or can be reviewed onscreen or printed out from within
HyperNet (Chapter 7).

2... OM-320 SYSTEM BASE

CJC

Integral to the TSA is a cold junction compensation (CJC) sensor.
This sensor is a 10 Kohm @25C (Fenwall curve 16) thermistor
which is located by the long white DIN connector on the side
opposite the terminal strips. The CJC sensor senses the
temperature of the terminal strips (Internal Mode) which in turn, is
used in thermocouple measurements. Additionally, the CJC sensor
can be used within a Program Net to monitor the temperature inside
the OM-320 enclosure.

INTERNAL CJC SENSING APPLICATIONS:

For OM-320 applications with thermocouple inputs to the TSA, a
wire jumper must be installed across terminals 1 and 2 (marked
INT for internal). The OM-320 is shipped from the factory with
this jumper installed.

NOTE: If thermocouples are directly connected to the
TSA, a wire jumper must be installed across the CJC
terminal strip terminals marked INT or erroneous
readings will occur..

EXTERNAL CJC SENSING APPLICATIONS:

If thermocouples are not being directly connected to the TSA,
this CJC sensor can be used to measure temperatures (or limited
range resistance) outside of the enclosure. A 10 Kohm
thermistor (with the specified resistance curve) or a resistance
type sensor can be connected across the terminals marked EXT

USING THE OM-320

2-5

2... OM-320 SYSTEM BASE

HL029

on the CJC terminal strip. Refer to the CJC Icon in Appendix A
for additional details.

For external sensing applications, copper lug potted thermistors
with 10’ leads are available from Omega Engineering.

EXT PWR

A two position terminal strip is provided for connection of an external
low-voltage power source. A power source supplying 9-16 VDC or
10-20 VACat 250mA can be connected to the terminals. Polarity is
not critical. In normal operation, the OM-320 will only draw 3 to
30mA of current from this supply, however with relays, LEDs,
modems, etc the current level can be higher.

If an external power supply is connected to the OM-320 via the
Terminal Strip Adapter and its supply voltage is greater than the
internal battery voltage by approximately 1.2 VDC, the OM-320 will
operate from the external supply and the batteries will not be used.
In the event that the external power drops, the OM-320 will
automatically transfer to battery power and continue operation.

OUTPUTS

One 12 position TSA terminal strip is marked with OUTPUTS for the
first 10 terminal positions and GPDI INPUT for positions 11 and 12.
The Outputs follow:

R1

R2

DO1, DO2, AND DO3

Wiring connections for Relay 1. The relay is a normally open
device with contacts rated for 500 ma MAX at 32VDC MAX.

Wiring connections for Relay 2. The relay is a normally open
device with contacts rated for 500 ma MAX at 32VDC MAX.

Wiring connections for Digital Output 1, 2, and 3. A low current
5VDC rated digital output is available from each of these single
terminals. These terminals are the outputs under control from
the Digital Output icons within HyperNet. The output swings from
0 to 5VDC relative to the GND terminals (below) and is intended

5

Voltage

0

Current

1mA

2-6

Figure 2..-5: System Base Digital Output

Current Sourcing Characteristics

USING THE OM-320

GND

+5V

2... OM-320 SYSTEM BASE

for sourcing and sinking signal level loads only. The output is
current limited with an internal 4.3Kohm series resistor which
results in varying output voltage levels as a function of load or
sourced current as shown in Figure 2..-5. These Digital Outputs
provide sufficient current for control of the Omega Engineering
RPS-1, Rechargable Power Supply which can be used for
powering/ exciting higher current sensors such as 4-20mA
transmitters (see Accessories in Appendix H).

This pair of terminals serves as a common or ground connection
for the Digital Outputs and for the +5V supply. It is connected
directly to the OM-320 circuit ground.

This terminal provides a current limited +5 VDC supply for low
level current applications.

Note: Heavy loading of the +5 output will significantly
reduce battery life.

GPDI INPUT (+/-)

Two terminals are provided for signal input to the General Purpose
Digital Input (GPDI). Integral to the System Base is this single
digital input channel that can be configured under HyperNet as an
Event or Counter type input. The GPDI input signal (either a contact
closure or 0 to 15VDC max driven signal) is applied across theses
two terminals observing polarity.

The operation of the GPDI is configured during construction of the
Program Net within HyperNet and programming and applications are
described in the Master Icon Reference in Appendix A.

Field Disconnect Feature

Through the use of the TSA and the I/O Wiring Plate, a OM-320 can readily
be disconnected from its I/O wiring and temporarily moved to a new location
for another test or application. With the following method, it is not necessary
to disconnect, then reconnect all of the discrete wiring each time the OM­320 is shared with another site or application.

To disconnect I/O wiring from the OM-320, refer to Figure 2..-6 and perform
the following steps:

1. Switch OM-320 power OFF

2. Remove the TSA retaining thumbscrew

3. Loosen the liquid-tight fittings so the wiring is free to
slide

4. Unplug the TSA and pull some additional wiring in
through the fittings

5. Remove the four I/O plate retaining thumbscrews

6. Tilt the I/O Wiring Plate and the TSA and feed them out
of the rectangular opening in the bottom of the OM-320
enclosure.

USING THE OM-320

2-7

2... OM-320 SYSTEM BASE

1. The TSA and I/O Wiring Plate can then be left on site
and the OM-320 moved to a new location. Additional I/O
Wiring Plates and TSA’s can be obtained from Omega
Engineering.

PORT 1

INT EXT

CJC

PORT 5

EXT

PWR

PORT 6

PORT 4

PORT 3

TSA

OUTPUTS

PORT 2

HL006

I/O Plate

Figure 2..-6: Removal of TSA through I/O Wiring

Opening

INTERFACE MODULE BACKPLANE

OM-320 Interface Modules plug into the System Base and provide various functions
such as signal / sensor interface, modem and PCMCIA memory card support. The
Interface Modules plug into a backplane that is located behind the front panel of the
OM-320. Access is gained to this backplane as follows Refer to Figure 2..-7 and
perform the following steps:

2-8

1. Remove the TSA retaining thumbscrew and unplug the TSA.

2. Remove the two thumbscrews at the top of the OM-320
enclosure.

USING THE OM-320

2... OM-320 SYSTEM BASE

1. Slowly, tug on the front panel handle (located near the top of the
front panel) and the front panel will swing open on its hinge.

HyperLogger
Front Panel

TSA Removed

Figure 2..-7: Accessing the Backplane for Interface Module

installation

Interface Module
Connectors

HL007

When the front panel is open, black connectors on the backplane for the six
numbered ports are available. Details on installation and configuration of the
Interface Modules are contained in Chapter 3.

FRONT PANEL DETAILS

The OM-320 front panel (see Figure 2..-8) contains numerous User buttons, switches
and the liquid crystal display. Details on these components follow:

System Power Switch

Power for the OM-320 is controlled with the System Power switch. When
the power is off, the batteries and any connected external power source are
disconnected.

The System Power does not affect data in memory or the Real Time Clock
date and time as both have a separate lithium battery backup power source.
This separate memory back-up battery will protect stored data for
approximately one year at normal room temperatures. Cell replacement
details are covered in Appendix D.

Power must be turned off to the System Base when installing Interface
Modules, replacing the lithium cell, EPROM, and any time the front panel is
opened. Additionally, to preserve battery life, turn the main power off
whenever the OM-320 is not being used.

RS-232 Serial Communications Port

A female 6/6 RJ-12 modular phone type jack is provided on the front panel
for RS-232 communications. A mating 6 conductor cable is supplied with
the OM-320 for communication between the PC and the OM-320 via this
port. This port is not for direct connection of a telephone line.

USING THE OM-320

2-9

2... OM-320 SYSTEM BASE

Serial Port

LCD Display

Status Lights

Relay Control
Switches

NEXT

SELECT
ENABLE
STOP

RESET

Push Buttons

Option Ports

System Power
Switch

HL008

Figure 2..-8: OM-320 Front Panel

CAUTION

The RS-232 jack is only for connection of RS-232

type signals (via the supplied cable and adapters)

and is not for direct connection of a telephone line.
For telephone modem communication with the OM-

320, utilize the OM-320 Modem Interface Module.

Direct connection of a telephone line to this jack will

result in permanent damage to the OM-320.

For longer communication distances, a longer cable can be used. Longer
cables can be purchased from Omega Engineering or from stores handling
standard phone supplies. If a cable is procured from a source other than
Omega Engineering, insure that the cable is 6 conductor and has the plugs
installed correctly. Refer to Appendix I for wiring details.

Although the RS-232 specification is only for communication distances up to
50’, communication with the OM-320 via RS-232 at Baud rates up to 19.2
Kbaud has been successfully achieved with 100’ of cable.

The OM-320 RS-232 communication circuitry powers up when a cable is
plugged into the port and a connection is established from within the
HyperWare Software. When the communication circuitry is powered up, an
additional load of approximately 30 mA is put on the power supply resulting
in shortened battery life.

For this reason, when not communicating with the OM-320, disconnect the
RS-232 cable. For extended communication sessions battery life can be
preserved by powering the OM-320 from an external power supply.

2-10

USING THE OM-320

TIP: For relative reference, with the communication
circuitry powered up, a new set of batteries will discharge
in approximately 3 days.

Option Ports

Two Option Ports are provided on the OM-320 front panel. The port
openings are available for installation of special Interface Modules such as a
modem or PCMCIA socket. These ports are normally covered by
rectangular covers unless one or more of the optional Interface Modules are
installed (special bezels are provided with any of the Interface Modules
using these ports.

Push Buttons

Located at the top right corner of the front panel are five momentary push
buttons providing basic OM-320 operational control. Details on the button
functions follow:

NEXT and SELECT

The NEXT and SELECT buttons are used for User control of the
liquid crystal display (LCD) information displays. Pressing NEXT will
advance the LCD display to the next menu item at the current menu
level. Pressing the SELECT button selects that menu item and a
new level of menus or results are displayed.

2... OM-320 SYSTEM BASE

A detailed explanation of the operation of the NEXT and SELECT
buttons is covered in a later section on the Display.

ENABLE

The ENABLE button initiates the execution of the current Program
Net residing in OM-320 memory. Upon press of the ENABLE
button, the LCD will change to display ENABLED on the second line.

Note that operation of the ENABLE button may be inhibited if Rotary
Memory Logging mode is set within the Global icon while building a
Program Net. Refer to the Master Icon Reference in Appendix for
details on the Global icon. Settings under the Global icon include:

LOG TO FULL MEMORY...

If the OM-320 is running in one of the Log to Full Memory modes,
multiple logging sessions can be retained in memory before a
download of data to a PC is required.

ROTARY MEMORY

If the OM-320 is programmed for the Rotary Memory mode, only
one logging session can be retained in memory before a
download is required. When the OM-320 has logged one session
and stopped, the LCD will display Memory Full. Pressing
ENABLE in this mode with a session already in memory will NOT
ENABLE execution of the Program Net, memory must be
downloaded or cleared before the OM-320 can be enabled.

USING THE OM-320

2-11

2... OM-320 SYSTEM BASE

FYI: The label ENABLE was chosen rather than START
for a subtle but important reason. When the ENABLE
button is pressed, execution of the Program Net
commences... but that does not necessarily mean that
data logging to memory has started.

For example, a Program Net is developed and uploaded
to the OM-320 that includes a setpoint function that
controls logging to memory. For example log only when
the kiln temperature exceeds 150F. Pressing the
ENABLE button merely causes the OM-320 to take
readings of the kiln temperature... but logging to memory
STARTS when the temperature rises above the 150F
threshold.

STOP

Pressing STOP at any time causes the OM-320 to finish sequencing
through the currently executing Program Net, then stop executing.
The LCD then updates to show STOPPED.

RESET

A hardware reset of the OM-320 microprocessor can be performed
by depressing and releasing both the STOP and RESET buttons at
the same time. This normally should not be required but in the
event that a noise glitch or some other malfunction occurs, this
manual Reset capability is provided for a User to force a reset of the
microprocessor from the front panel.

WATCH-DOG TIMER RESET

A special automatic reset circuit is incorporated into the System
Base to add additional reliability to the OM-320 system. This
circuitry, called a Watch-Dog Timer will force the OM-320
microprocessor to reset and continue operation where it left off
(within 2 seconds) in the event that an unforseen hiccup or noise
glitch (for example, from a nearby lightning strike) causes the
microprocessor to lose its place or lock-up.

Although this circuit normally should not operate, it adds one
more level of robustness to the OM-320 for handling unforeseen
events.

Display

An extended temperature range 2-line by 16 character liquid crystal display
(LCD) is provided. Information ranging from Operational Mode to System
Status to Alarm Messages to signal readings can all be displayed on the
LCD. The LCD is continually ON. Information to be displayed is controlled
by a User via the SELECT and NEXT front panel buttons.

Additionally, alarm messages will be automatically displayed on the LCD
when User pre-programmed conditions are met. These messages and
conditions are defined by the User in the Program Net developed within
HyperNet ( Chapter 7) and loaded into OM-320 memory.

2-12

USING THE OM-320

Display Operation

Information that can be displayed on the LCD is arranged in a
hierarchical format and is accessed by a User via the NEXT and the
SELECT buttons on the front panel of the OM-320. The menu
structure is diagrammed in Figure 2..-9.

Pressing the NEXT button advances the display to the next available
item in that menu level. Repetitive presses of the NEXT button will
result in a circular sequencing through all of the available menu
items on the current level and eventual repeat of the sequence.

SELECT

HYPERLOGGER X.XX

N
E
X
T

<MODE>

SYSTEM

STATUS

DISPLAY PROBE

ICON VALUES

2... OM-320 SYSTEM BASE

Shows the EPROM version number and the
current operating mode

SELECT

Display

Date and Time

N
E
X
T

Display

Remaining Memory

Unit Name and ID

Net Program Name

Net Program

Description

System Supply

Voltage

Return to Top

Menu

(Loops to top of this menu)

Steps through all of the Probe Icons and Displays their
current values

Shows the current date
and time in the
HyperLogger

Shows the % memory used
and # of samples recorded

Shows the Unit Name and
ID (set from HyperWare)

Name of the Net Program
(set from HyperWare with
Global Icon)

Desc. of Net (set from
HyperWare eith Global Icon)

Voltage of the batteries or
external supply, whichever
is greater

Jumps to the top of the
menu system

DISPLAY MEMORY

ICON VALUES

DISPLAY STATUS

MESSAGES

ERASE

MEMORY

(Loops to top of this menu)

Steps through all of the Memory Icons and displays their
current values

Steps through all of the active Message Icons

Erases data memory, leaving Net program intact

HL009

Figure 2..-9: LCD (display) Menu Structure

Pressing the SELECT button selects that menu item and a new level
of menus or results are displayed. A detailed description of the
various menu items and levels follow.

TIP - a good comprehension of this LCD menu structure
can be achieved by close reading of this section... but
better results may be achieved by just `diving in’ and
poking around with the NEXT and SELECT buttons to
develop a feel for the structure. Then read through this
section for the details.

USING THE OM-320

2-13

2... OM-320 SYSTEM BASE

Display Menu Items

Following are descriptions of each of the display menu items
identified in Figure 2..-9. Further details may be found in later
sections detailing the functions described.

TOP MENU:

When the OM-320 is powered ON, the Top Menu is displayed in
the LCD. The Top Menu indicates the OM-320 EPROM version
on the top line of the LCD (software version residing in an
EPROM memory chip within the OM-320) and on the bottom line,
the current operational mode of the OM-320. Displayed Modes
include:

ENABLED

Indicates the OM-320 is currently executing a Program Net
that has been developed with HyperNet and transferred to
the OM-320 memory.

STOPPED

The OM-320 is not executing a Program Net. Since the Net
is not executing and updating the net, stepping through
various Probe Points will result in values and states that will
not be current.

MEMFULL STOPPED

MEMFULL ENABLED

MEMFULL WRAPPING

Data memory within the OM-320 has filled and the
execution of the Program Net has stopped. This message
will also display if the Rotary Memory mode is utilized (See
Global icon in Appendix A) and a logging session has been
performed. In Rotary Memory mode, only one logging
session can be maintained in the OM-320 memory.

Memory within the OM-320 has filled, however execution of
the Program Net is continuing. This mode of operation may
be User selected when alarming/control functions are to be

monitored.... even after the OM-320 memory has filled.

This display will only occur if the User has selected the
memory utilization option Log to Full Memory and Continue
Processing during setup of the Program Net within HyperNet
(Global Icon option).

Displays when the OM-320 Program Net is configured in the
Rotary Memory mode. When memory fills, the OM-320
starts writing over the first collected data. Since the
Program Net is still executing, alarms and control functions
continue to be monitored. Rotary Memory mode is enabled
during setup of the Program Net under the Global Icon.

RCV’ING NET

2-14

Displays momentarily during the actual serial upload of of a
Program Net to the OM-320.

USING THE OM-320

NO PROGRAM NET

Displays upon first power up of the OM-320 after the
Program Net has been lost. This should only occur after
replacement (or initial installation) of the lithium cell used for
Data Memory backup. The display indicates that a search
for a valid Program Net stored within the OM-320 memory
has failed.

In the event that this message displays, check (and replace
if low) the Lithium Cell via the STATUS menu described
below. Then reprogram the OM-320 with a new Program
Net.

BAD PROGRAM NET

Displays if an illegal or corrupted Program Net is in memory.
This message should only occur if memory containing the
Program Net has been corrupted. In the event that this
message displays, check (and replace if low) the Lithium
Cell via the STATUS menu described below.

CARD ERROR: MISSING FILE

Displays upon power-up of the OM-320 with an improperly
prepared PCMCIA card inserted. The card should be
formatted and prepared for use within the OM-320 as
described in Chapter 6.

2... OM-320 SYSTEM BASE

BAD CONFIG

SYSTEM STATUS

DATE AND TIME

REMAINING MEMORY

Displays if User selectable switch settings on the OM-320
Interface Module do not match the currently loaded Program
Net. The message also identifies which Interface Module
and channel or incompatible. If this message displays,
modify the Program Net to match the hardware or open the
OM-320 and examine the switch settings on the installed
Interface Modules and correct the invalid setting(s).

From the Top Menu, pressing the Next button once will advance
the display to System Status. Pressing SELECT while System
Status is displayed results in a new level of display. Menu
selections available on this level include:

Press SELECT to display the current Date and Time in the
OM-320 Real Time Clock. This is the date and time to
which collected data is referenced. The OM-320 date and
time are set from within HyperComm (Chapter 5).

Press SELECT to display the number of samples recorded
and the percentage of memory used.

TIP: Depending on the User defined format
for data storage and the actual time and
values being stored, samples will require
varying amounts of memory for storage. For
this reason, use caution when extrapolating
the remaining logging time.

USING THE OM-320

2-15

2... OM-320 SYSTEM BASE

UNIT NAME & ID

Press SELECT to display the programmed OM-320 Name
and ID. The OM-320 Unit name and ID can be User
assigned through HyperWare (Chapter 5). This ID can be
used for corporate tracking of multiple units, calibration
schedules, etc.

PROGRAM NET NAME

Press SELECT to display the currently loaded Program Net
name. This name is assigned during the development of a
Program Net (Chapter 7).

PROGRAM NET DESCRIPTION

Press SELECT to display a previously programmed
description of the Program Net (above).

SYSTEM SUPPLY VOLTAGE

Press SELECT to display the OM-320 supply voltage and
the approximate state of charge of the memory / clock
backup lithium cell. If internal batteries are installed in the
OM-320 and an external power supply is also connected, the
displayed Supply Voltage indicated refers to the greater of
the two.

The state of charge display for the lithium cell (used for
memory and clock backup) will display GOOD or LOW. If
LOW is displayed, download any desired data memory, then
replace the lithium cell per the instructions in Appendix D.

RETURN TO TOP MENU

Press SELECT to return to the Top Menu display. Press
NEXT to cycle through this level’s menu selections again.

DISPLAY PROBE ICON VALUES

During the construction of a Program Net within HyperNet, the
User can opt to connect Probe Point icons to various nodes
throughout the net. These Probe Point icons allow the User to
view the current values on the nodes to which they are
connected. (Program Net development is described in Chapter 7
and details on the Probe Point icon are included in Appendix A.)
One of the ways that the Probe Point values can be viewed is via
the OM-320 front panel LCD, as follows:

FYI: The displayed Supply Voltage is
measured at an internal node on the power
supply circuitry. Displayed battery voltage is
the voltage of the internal batteries .
External supply voltage will be
approximately 1.2 volts higher than
indicated.

2-16

FYI: Probe Point is used for the icon name as
connecting these icons to a node on a Net is
somewhat analogous to putting a test meter probe
on the Net nodes and reading a value.

USING THE OM-320

2... OM-320 SYSTEM BASE

From the Top Menu, pressing the NEXT button twice will
advance the LCD to Display Probe Icon Values. Pressing
SELECT while Display Probe icon Values is on the LCD will shift
the display to a level containing the actual Probe Point values.
The top line of this display is the Probe icon Name assigned to
the icon during construction of the net and the second line is the
value and units.

Repetitively pressing NEXT will step the display through all of the
Probe icons previously programmed into the Program Net. To
return to the Top Menu, press SELECT when Return to Top
Menu is displayed.

Displayed Probe icon values will be updated whenever the net
node is updated. If the OM-320 is Stopped (ie not executing the
net), the last calculated node value will be displayed.

TIP: Displaying Probe icon Values while the OM-320 is
enabled will slow down the execution of the net. For
higher speed data logging applications (eg sub-second
sampling rates), faster performance can be achieved by
leaving the LCD in a mode where it is not displaying the
time/date, battery state of charge, remaining memory,
Probe icons, Memory Icons , or Net Values,

DISPLAY MEMORY ICON VALUES

In addition to display of Probe icon values (previously described),
the last value stored to any Memory icon within the executing
Program Net can also be displayed on the LCD.

From the Top Menu, pressing the NEXT button three times will
advance the LCD to Display Memory Icon Values. Pressing
SELECT while Display Memory Icon Values is on the LCD will
shift the display to a level containing the actual last logged
values. The top line of this display is the Memory Icon Name
assigned to the icon during construction of the net and the
second line is the last logged value and units.

To return to the Top Menu, press SELECT when the Return to
Top Menu message is displayed.

DISPLAY STATUS MESSAGES

Messages can be sent to the LCD due to OM-320 operational
conditions or User programmed Program Net conditions. To view
the active messages; from the Top Menu, press NEXT five times
and then SELECT while the Display Status Messages menu is
displayed. Step through the messages with the NEXT button and
return to the Top Menu by pressing SELECT when Return to Top
Menu is displayed.

Depending on the inputs and programmed conditions within the
currently executing Program Net, User programmed messages
may come and go as the conditions for display are met then not
met over time.

During execution of a Program Net, if the conditions (either OM­320 operational or User defined Program Net) are met for a
message display (eg an alarm conditon occurs), the message will
display on the LCD immediately... overwriting any current
displays. Messages displayed on the LCD will not be cleared

USING THE OM-320

2-17

2... OM-320 SYSTEM BASE

from the LCD when they become False, however they will be
cleared from the internal display queue. Messages will only be
cleared from the LCD if another message is displayed or if the
User changes the LCD (via the Select/Next buttons) in any way.
For additional information on message display capability from
within a Program Net,, refer to the Message icon in Appendix A.

ERASE MEMORY

Data memory within the OM-320 and within an inserted PCMCIA
card can be cleared via the SELECT and NEXT buttons. To
clear memory, from the Top Menu, press NEXT six times until
the message Erase Memory appears on the LCD. Then press
SELECT a total of five times to clear the memory. Successful
erasure of the memory is confirmed with a Memory has been
Erased message.

Note that at any time during this sequence of SELECT button
presses, pressing the NEXT button will abort the Memory Clear
sequence and stored data will be preserved.

All the King’s horses and all the King’s men can’t
reassemble erased OM-320 data again. Please be

CAUTION!

careful.

Internal OM-320 memory and PCMCIA card memory can also
be cleared via a serial communication link. Refer to the Chapter
5 on HyperComm for details.

Relay Control Switches

The System Base contains two relays for use as low-voltage alarm or control
outputs. Wiring connections to these two normally open contact relays is via
the TSA.

The two System Base relays are meant for low-

voltage low-current control and alarm applications.

Do not connect over 32 VDC potential or in excess of

250 mA of current through the relays.

In the lower left of the OM-320 front panel are two toggle switches labeled
Relay 1 and Relay 2. The switches are three position and are provided for
manual override of the relays. Description of operation in the three positions
follows:

OFF: In the center position, the relays are disabled and can not be

turned ON by the OM-320 Program Net.

TEST: When the switch is toggled to the right, the relay is forced

into an ON state and the relay contacts are closed. This is a
`momentary’ position and when the switch is released, tit
returns to the OFF position.

CAUTION!

2-18

USING THE OM-320

Status Lights

Three light emitting diode (LED) lights are provided on the front panel,
labeled STATUS, ALARM 1 and ALARM 2. The STATUS LED is merely a
visual indicator provided for User specified application from within a
Program Net. The ALARM LED’s provide visual indication of the state of the
two output relays (described above). When the ALARM LED is ON, the
relay contacts are closed.

2... OM-320 SYSTEM BASE

RUN: In the left position, the relay is under control of the OM-320

microprocessor. The relays will be switched ON and OFF
per the logic contained within the Program Net.

NOTE: If the relay alarm function is used within a
Program Net, insure that the switches are set to RUN
before leaving the site.

USING THE OM-320

2-19

2... OM-320 SYSTEM BASE

NOTES:

2-20

USING THE OM-320

3... INTERFACE MODULES

3... INTERFACE MODULES

The OM-320 System Base includes six ports for plug-in installation of any of the
family of OM-320 Interface Modules (see Figure 3... -1) . Interface Modules provide
the interface between real world signals such as thermocouples, voltage, current,
telephone lines, etc and the OM-320 System Base.

This section covers the installation, wiring, hardware configuration, and application
considerations of the basic OM-320 family of Interface Modules. As additional
modules are added, the instruction sheets should be added to this section for
reference.

Utilization of the Interface Module channels within a HyperNet Program Net is
covered within Chapter 7 and the reference Master Icon Listing contained in
Appendix A.

Configuration Switches

HL002

Mounting Bracket

Figure 3... -1: Interface Module

HANDLING

As with all electronic systems, static electricity discharge can weaken or cause
permanent damage to circuitry. Protective circuitry is integral to the OM-320 system
including the Interface Modules, however when the Interface Modules are not
installed in the System Base, the protective circuitry is not effective. Therefore,
when handling Interface Modules, it is recommended that reasonable static control
procedures be followed.

♦ Before touching the Interface Module, discharge static electricity

built up in your body be touching a grounded point such as a
water faucet, cover plate screw on a receptacle, metal surface
of a grounded appliance or other earth ground.

♦ Do not wrap or store the Interface Module in static generating

materials such as untreated styrofoam packing `peanuts’ or
plastic bags. Anti-Static bags are available for storage of static
sensitive components.

USING THE OM-320 3-1

3... INTERFACE MODULES

INSTALLATION

When shipped, Interface Modules are provided with a Quick Reference Card,
Instruction sheet, and any necessary accessories. Optionally, if ordered with a
System Base, the Interface Modules are typically factory installed in the System
Base before shipment.

HyperLogger
Front Panel

TSA Removed

Figure 3... -2: Accessing the OM-320 System Base backplane

Interface Module
Connectors

HL007

The Interface Modules plug into a backplane that is located behind the front panel of
the OM-320. Access is gained to this backplane as follows (Figure 3... -2):

1. Remove the TSA retaining thumbscrew and unplug the TSA.

2. Remove the two thumbscrews at the top of the OM-320
enclosure.

3. Slowly, tug on the front panel handle (located near the top of the
front panel) and the front panel will swing open on its hinge.

USING THE OM-3203-2

3... INTERFACE MODULES

When the OM-320 is open, inspection of the exposed circuit board backplane
(Figure 3... -3) will reveal the connectors and threaded inserts used in installation of

TSA Connector

Interface Module
Connectors

Backplane

PORT 1

PORT 2

PORT 3

PORT 4

Inserts to secure Interface Module

PORT 5

PORT 6

Option Ports

Special Extended
Connector for
Port 6

HL011

Figure 3... -3: Backplane and Interface Module connectors

(view shown with OM-320 front panel open)

a Interface Module. Note that Interface Module ports 1 through 5 are all identical,
however Port 6 includes some additional connections (one of the Backplane socket
connectors is longer) and also aligns with the Front Panel cutouts (labeled Option
Port 1 and 2 on the Front Panel). Some Interface Modules such as the HLIM-5 must
be installed in Port 6.

To install an Interface Module into the System Base Backplane Ports 1 to 5:

1. Review the Interface Module instructions and observe any
special installation instructions.

2. Turn the OM-320 System Power switch OFF.

3. Remove the TSA retaining thumbscrew and unplug the TSA.

4. Remove the two thumbscrews at the top of the OM-320
enclosure.

5. Slowly, tug on the front panel handle (located near the top of the
front panel) and the front panel will swing open on its hinge
(Figure 3... -2).

6. Observe the gold connector pins on the long edge of the
Interface Module. These pins will plug into a mating black
socket mounted on the OM-320 System Base Backplane. Also,
two phillips head screws in angle brackets are at each end of the
Interface Module. These screws will mate with threaded inserts
in the Backplane (Figure 3... -3).

7. Orient the Interface Module with the diagonally cut end toward
the top of the Backplane.

USING THE OM-320 3-3

3... INTERFACE MODULES

8. Tighten the retaining screws into their mating inserts while
carefully observing the alignment of the mating connectors.

TIP: Start one screw into its mating insert, then align and
start the other screw. Check that the connectors are
aligned and then tighten both of the screws securing the
Interface Module to the Backplane..

To install an Interface Module into System Base Backplane Port 6:

1. Review the Interface Module instructions. If the Interface
Module uses either Front Panel Option Port 1 or 2, remove the
two phillips head screws holding the Option Port cover(s) in
place.

2. Follow the steps specified for installation of an Interface Module
into Ports 1 to 5 above.

3. Install any special bezels (provided with the Interface Module)
using the two phillips head screws removed in step 1.

USING THE OM-3203-4

3... INTERFACE MODULES

INTERFACE MODULE OPERATIONAL INSTRUCTIONS:

Each Interface Module has specific characteristics and instructions for set-up and
use that are unique to that particular module. These instructions are provided with
the Interface Module at the time of purchase. As Interface Modules are added to a
User’s OM-320, the instruction sheets provided should be added to this section of
the manual.

The instructions for most Interface Modules include both hardware and software
details. Software instructions will commonly be referenced from other sections of
this manual such as in the chapter on HyperComm for the modem modules and the
chapter on HyperNet programming for analog and digital Interface Modules.

Instruction sheets for the following Interface Modules are currently included in this
section:

♦ HLIM-1; Analog Interface Module
♦ HLIM-2; Event, Frequency, Count Interface Module
♦ HLIM-4; RTD, Thermistor, and Resistance Module
♦ HLIM-8; Digital Interface Module (8 channel digital I/O)
♦ HLIM-5 PCMCIA Memory Card Interface Module
♦ MM-2400 2400 Baud Modem option (for HLIM-5)
♦ MM-14.4 14.4kbaud Modem option (for HLIM-5)

USING THE OM-320 3-5

3... INTERFACE MODULES

NOTES:

USING THE OM-3203-6

3... INTERFACE MODULES

HLIM-1; FOUR CHANNEL ANALOG INTERFACE MODULE
OVERVIEW

Overview:

The HLIM-1 is a four channel Interface Module for use in conjunction with
the OM-320 System Base. Each of the four channels can be individually
programmed for any combination of the following signal types and input
ranges with HyperWare software (via HyperNet) and hardware
Configuration Switches (located on the Interface Module).

Thermocouple:

Type Color (USA) Range (F) Range (C)

J white/red -60 to 1400F -50 to 760C
K yellow/red 32 to 2500F 0 to 1370C
E purple/red -150 to 1830F -100 to 1000C

T blue/red -250 to 750F -160 to 400C
R black/red 32 to 1830F 0 to 1000C
S black/red 32 to 3182F 0 to 1750C

Table 3... -1: Thermocouple input types and ranges

DC Voltage:

Full Scale (FS) ranges:

Icon Full Scale Input Ranges

VDC-LO +/- 20mV +/-40mV +/-50mV +/-60mV +/-100mV

+/-200mV +/-1V +/-2V

VDC-MED +/-5 V +/- 10V

VDC-HI +/- 3V +/-15V +/-30V

Table 3... -2: DC Voltage input ranges

Input Impedance for the 5V, 10V, and 30V ranges is >2.5Megohm.
All other range’s input impedance is > 10 Megohm.

DC Current:

Full Scale (FS) ranges:

Icon Full Scale Input Ranges

mA-LO +/-200uA +/-400uA +/-500uA +/-1.0mA

+/-2.0mA +/-11 mA +/-22mA

Table 3... -3: DC Current input ranges

Input resistance for all current ranges is a 100 ohm precision shunt.

USING THE OM-320 3-7

3... INTERFACE MODULES

D

Module Installation:

Refer to page 3-2 for instruction on installation of the Interface Module into
the OM-320 Backplane. No special considerations are required for
installation of this module into the System Base.

Upon completion of installation, visually insure that all of the connector pins
are mated in their respective sockets.

Port Requirements / Limitations:

This module can be installed in any of the six Backplane ports.

Hardware Configuration Switches:

Four sets of Configuration Switches are provided for each of the four
channels (Figure 3... -4). Through the use of these switches, various types
of signals can be directly fed into the OM-320 eliminating the need for User
supplied external precision dividers, shunts and other circuitry.

Configuration Switches

Retaining Screw

Fuses

ON

1 2 3 4

O
N

OFF

ChannelAChannelBChannelCChannel

1 2 3 4

O
N

1/8

O
N

1/8

1 2 3 4

1 2 3 4

O
N

1/8

1/8

HL012b

Figure 3... -4: Channel configuration switches within the HLIM-1 Interface

Module

USING THE OM-3203-8

3... INTERFACE MODULES

Although for most applications, an in-depth understanding of the function of
these switches is not required, a simplified schematic of the input section of
the HLIM-1 is provided in Figure 3... -5. As can be seen in this schematic,
different combinations of the switches interject voltage dividers and shunts
into the input stage of the

2.49M

INPUT

SW2 SW3 SW4

SW1

FUSE

0-30
Range

GROUND REFERENCE JUMPER

22K

0-10
Range

4-20mA
Range

AMP

ML014

Figure 3... -5: Simplified schematic of input section

of HLIM-1

Input Overcurrent Fuses:

Each channel is protected by a 125mA fuse as shown in Figure 3... -5
(circuit) and Figure 3-4 (physical location on module). This fuse will protect
the module from overcurrent surges received from malfunctioning or
improperly connected sensors and transmitters.

In the event that a channel on a module quits responding with proper values,
it may be an indication that this protective fuse has blown. The fuse can be
removed from the circuit and checked for continuity with an ohm-meter
and/or replaced with a Littelfuse P/N: 273.125 fuse available from Omega
Engineering Incorporated or many electronic distributors.

The following reference chart provides the necessary information for
configuration of the switches. The switch settings are read by the OM-320
during a query of the hardware configuration (from within HyperNet) so the
User is not burdened with keeping notes of the current OM-320
configuration. Improper setting of the switches will result in a `Bad
Configuration’ message on the LCD upon power-up of the OM-320. In the
event that this message displays, check the switch settings per Table 3... -4
and correct the conflict.

Input / Range SW 1 SW2 SW3 SW4

Thermocouples OFF OFF OFF

ON

USING THE OM-320 3-9

Thermo-

couple Icon

3... INTERFACE MODULES

VDC up through +/-2 VDC
VDC up through +/-10 VDC OFF OFF
VDC up through +/-30 VDC OFF
All Current (mADC) Ranges

Table 3... -4: HLIM-1 configuration switch settings

ON

HLIM-1 Channel Configuration via Software:

When a HLIM-1 channel is configured as a particular type of input via the
module configuration switches, the configuration will be automatically
detected during the development of a Program Net for the OM-320.
Software configuration and utilization of the HLIM-1’s channels in a
Program Net is covered in Chapter 7 and within the Master Icon Listing in
Appendix A.

HLIM-1; THERMOCOUPLE APPLICATION

Thermocouple Connection:

To utilize an HLIM-1 channel as a thermocouple input, configure that
channel’s Interface Module Configuration Switch per Table 3... -4. Channels
configured as thermocouple inputs utilize three terminal strip connections
per input; Positive lead, Negative lead, and Shield.

Connect the thermocouple positive and negative (red in USA) leads to the
correct pair of terminals on the TSA PORTx terminal strip. Refer to Chapter
7 for steps to generate a TSA Wiring printout for use in making field wiring
connections.

ON

ON

OFF OFF

OFF OFF

OFF

ON

TSA Terminal Strip

1 2 3 4 5 6 7 8 9 10 11 12

Thermocouple

Figure 3... -6: Thermocouple (and optional Shield) terminal strip connection

Polarity is critical..
Shielded thermocouple wire is recommended in electrically noisy

environments for optimum signal protection. If shielded wire is used, a
ground wire should be run from one of the Shield terminals to an earth
ground connection to conduct away noise picked up by the thermocouple
shield (Figure 3... -6). Only one ground wire is required per 12 position
terminal strip as terminals 3, 6, 9 and 12 are all interconnected within the
TSA circuit board.

NOTE: Do not ground the shield wire at the sensor end away from the OM-

320.

Hi

Lo (Red)

Shield

Earth Ground

HL014

USING THE OM-3203-10

3... INTERFACE MODULES

Thermocouple Application Notes:

Cold Junction Compensation (CJC): For thermocouple measurements,
the temperature of the terminal strip connections is required in the voltage to
temperature conversion equation used by the OM-320. This temperature is
measured by the CJC sensor located on the back of the TSA. Any
differential temperature from the metal terminal strip connections to the CJC
sensor on the TSA circuit board will result in direct measurement errors.

The TSA is thermally designed to provide good CJC sensor vs terminal strip
temperature tracking however, to minimize this potential error, avoid
installations or effects that will induce extreme temperature differential. The
most accurate readings will be achieved when the door to the OM-320 is
closed and temperatures within the enclosure have stabilized.

DIFFERENTIAL POTENTIAL: to minimize current loop induced errors, use
isolated type thermocouples or insure that all thermocouple junctions are at
ground potential. Insure that input voltages do not exceed 3.0V above or
below circuit ground (maximum common mode voltage).

VDC- Lo

Range Icon

VDC-

Medium

Range Icon

HLIM-1; DC VOLTAGE APPLICATION

The HLIM-1 can support three different major ranges (and a multitude of sub-ranges)
of analog DC voltage input depending on the channel’s hardware Configuration
Switch setting (See Table 3... -4). To utilize an HLIM-1 channel as a DC Voltage
input, set that channel’s Configuration Switch per the Table for the desired input
signal range.

As shown in Figure 3... -5, when DC-MED or DC-HI are selected with the hardware
Configuration Switches, front-end divider circuitry is enabled. This circuitry
attenuates the input signal to a range that can be handled by the HLIM-1
instrumentation amplifier section.

TIP: For best accuracy and absolute resolution, utilize
the lowest range possible that will cover the input signal’s
dynamic range without over-ranging.

Signal Connection (all Ranges):

Interface Module channels configured as VDC inputs provide three terminal
strip connections per input; Positive lead, Negative lead, and Shield.

Connect the VDC signal positive and negative leads to the correct pair of
terminals on the TSA PORTx terminal strip (Figure 3... -7). Refer to
Chapter 7 for steps to generate a TSA Wiring printout for use in making field
wiring connections.

Observe polarity or the output signal will be reversed.

USING THE OM-320 3-11

3... INTERFACE MODULES

To minimize noise pickup on sensor wiring between the OM-320 and the end
sensor or signal source, 18 to 22 AWG shielded, twisted pair wire is
recommended.

Shielded Twisted
Pair Line

TSA Terminal Strip

1 2 3 4 5 6 7 8 9 10 11 12

+

HL016

VDC-High
Range Icon

-

Shield

Earth Ground

Figure 3... -7: VDC signal (and optional shield) terminal strip connection

FYI: Shielded wire minimizes the amount of noise picked
up by the internal conductors carrying the signals by
providing an `electrical shell’ or Faraday cage around the
internal conductors.

Twisted pair wiring exposes both conductors equally to
the ambient electrical noise. This common-mode type
noise is easier to reject by the Interface Modules input
signal conditioning circuitry than un-balanced (or
differential) noise.

Shielding and/or twisted pair wire is especially recommended in electrically
noisy environments for optimum signal protection. If shielded wire is used, a
ground wire should be run from one of the Shield terminals to an earth
ground connection to conduct away noise picked up by the shield conductor.
Only one ground wire is required per 12 position terminal strip as terminals
3, 6, 9 and 12 are all interconnected within the TSA circuit board. Multiple
terminal strips on the TSA (multiple ports) can be daisy-chained to a
common earth ground wire (Figure 3... -8).

USING THE OM-3203-12

3... INTERFACE MODULES

NOTE: Do not ground the signal wiring shield conductor at the sensor end
(the end away from the OM-320) as this can induce additional noise into the

TSA

1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12

OUTPUTS

1 2 3 4 5 6 7 8 9 10 11 12

R1 R2 D01 D03

DO2

GND +5V GPDI INPUT

1 2 3 4 5 6 7 8 9 10 11 12

Figure 3... -8: Daisy-chained shield connections on TSA

sensor wiring..

PORT 1

+ -

1 2 3 4 5 6 7 8 9 10 11 12

INT EXT
CJC

PORT 5

1 2 3 4 5 6 7 8 9 10 11 12

PORT 6

1 2 3 4 5 6 7 8 9 10 11 12

PORT 4PORT 3PORT 2

EXT
PWR

HL015

Earth Ground

APPLICATION NOTES; DC Voltage Channels

Channel Isolation:

The negative terminal of HLIM-1 channels configured as DC Voltage
inputs are isolated from the OM-320 circuit ground by a 22Kohm
resistor (see Figure 3... -5).

Common Mode Input Range Considerations:

To prevent saturation of the input amplifier stages and erroneous
readings, no voltages should be applied to any input terminals that
are greater than 4.0V above or below circuit ground. If the signal
being measured is not connected to the OM-320 circuit ground (ie
`isolated’ supplies are used), common mode input voltages up to 32
V can be accepted. Voltages above this level can be lethal and
should not be applied to the OM-320. Supply isolation can be
achieved by allowing the OM-320 to run from its internal batteries
(rather than an external source).

USING THE OM-320 3-13

mA-Lo Icon

3... INTERFACE MODULES

Multiple Measurement Nodes on a Circuit:

When measuring different voltage points from a common circuit with
multiple channels (of one or more Interface Modules), measurement
errors from induced ground currents can exist. Single ended
measurements may be required. Consult the factory for application
assistance.

HLIM-1; DC CURRENT (MA-LO) APPLICATION

The HLIM-1 can accept DC Current within the ranges specified in Table 3... -3. To
utilize an HLIM-1 channel as a DC Current input, set that channel’s Configuration
Switch per Table 3... -4 as a mA-LO Channel.

As shown in Figure 3... -5, when mA-DC is selected with the hardware Configuration
Switches, a precision 100 ohm burden resistor is enabled. The input signal is
measured as a voltage across the shunt resistor.

TIP: For best accuracy and absolute resolution, utilize
the lowest range possible that will cover the input signal’s
dynamic range without over-ranging.

Signal Connection (all Current Ranges):

Interface Module channels configured as mA-LO inputs provide three
terminal strip connections per input; Positive lead, Negative lead, and
Shield.

Connect the mADC signal positive and negative leads to the correct pair of
terminals on the TSA PORTx terminal strip (Figure 3... -8). Refer to
Chapter 7; HyperNet Programming for steps to generate a TSA Wiring

+ XTMR -

4-20mA

+

+

Controller

Power
Supply

-

-

Figure 3... -8: Terminal strip connections for multiple 4-20mA

printout for use in making field wiring connections.

Observe polarity or the output signal will be reversed.

To minimize noise pickup on sensor wiring between the OM-320 and the end
sensor or signal source, 18 to 22 AWG shielded, twisted pair wire is
recommended. At the low current levels interfacing to the HLIM-1, voltage

+

Panel Meter

+ XTMR -

4-20mA

-

inputs

TSA Terminal Strip

1 2 3 4 5 6 7 8 9 10 11 12

-

+

A

GND

-

+

B

HL017

USING THE OM-3203-14

3... INTERFACE MODULES

drop in signal wiring is not a concern, however for extremely long runs, a
voltage drop analysis should be performed for the entire loop and if
necessary larger gauge wire should be used.

FYI: Typically, with current signals (in contrast to low
level voltage signals), noise pickup will be less due to the
low impedances involved in the circuit. However, in real­world applications, one should attempt to minimize noise
on signal wires whenever possible.

Shielded wire minimizes the amount of noise picked up
by the internal conductors carrying the signals by
providing an `electrical shell’ or Faraday cage around the
internal conductors.

Twisted pair wiring exposes both conductors equally to
the ambient electrical noise. This common-mode type
noise is easier to reject by the Interface Modules input
signal conditioning circuitry than un-balanced (or
differential) noise.

Shielding and/or twisted pair wire is especially recommended in electrically
noisy environments for optimum signal protection. If shielded wire is used, a
ground wire should be run from one of the Shield terminals to an earth
ground connection to conduct away noise picked up by the signal wire
shield. Only one ground wire is required per 12 position terminal strip as
terminals 3, 6, 9 and 12 are all interconnected within the TSA circuit board.
Multiple terminal strips on the TSA (multiple ports) can be daisy-chained to a
common earth ground wire (Figure 3... -8).

NOTE: Do not ground the signal wiring shield conductor at the sensor end
(the end away from the OM-320) as this can induce additional noise into the
sensor wiring..

APPLICATION NOTES; DC Current Channels

Channel Isolation:

The negative terminal of HLIM-1 channels configured as DC Current
inputs are isolated from the OM-320 circuit ground by a 22Kohm
resistor (see Figure 3... -5).

Common Mode Input Range Considerations:

To prevent saturation of the input amplifier stages and erroneous
readings, no voltages should be applied to any input terminals that
are greater than 4.0V above or below OM-320 circuit ground.

In wiring multiple 4-20mA transmitters to the OM-320 through an
HLIM-1 channel, this 4.0V common mode level must not be
exceeded. Figure 3... -8 shows an acceptable method to connect
multiple transmitters running from a common power supply to

USING THE OM-320 3-15

3... INTERFACE MODULES

several channels on an HLIM-1 Interface Module channel without
exceeding this spec.

A simple method to comply with this spec is to insure that all
negative inputs (-) on channels configured as mA-LO inputs are
directly connected to the GROUND (-) terminal of the power supply
used for excitation of the 4 to 20 mA loop (eg the Omega
Engineering RPS-1, Rechargeable Power Supply). This will insure
that the voltage developed across the 100 ohm resistor internal to
the HLIM-1 mA-LO input channel will never exceed 2 VDC (ie 20mA
X 100 ohms = 2 VDC) relative to any channel’s (-) negative terminal.
In Figure 3... -8, the voltage developed between node [A] to [GND]
and node [B] to [GND] will never exceed 2VDC (in normal
operation).

Multiple Measurement Nodes on a Circuit:

When measuring different voltage points from a common circuit with
multiple channels (of one or more Interface Modules), measurement
errors from induced ground currents can exist. Single ended
measurements may be required. Consult the factory for application
assistance.

USING THE OM-3203-16

NOTES:

3... INTERFACE MODULES

USING THE OM-320 3-17

3... INTERFACE MODULES

HLIM-2; DIGITAL INTERFACE MODULE OVERVIEW

Overview:

The HLIM-2 Interface Module provides four input channels and four output
channels on a single module. Each of the four input channels can be
individually programmed for any combination of Event input, Count input, or
Frequency input. The four output channels provide current limited nominal
5VDC output. Configuration of the module is done from within HyperNet in
HyperWare.

Module Installation:

Refer to Chapter 3 for instruction on installation of the Interface Module into
the OM-320 Backplane. No special considerations are required for
installation of this module into the System Base. Upon completion of
installation, visually insure that all of the connector pins are mated in their
respective sockets.

Port Requirements / Limitations:

This module can be installed in any of the six Backplane ports.

Figure 3... -9:

Event icon

(HLIM-2)

Hardware Configuration Switches:

No hardware configuration switches are provided on the HLIM-2. All
configuration is done via the HyperNet software.

Software Configuration of the HLIM-2:

The HLIM-2 module is completely configured on a channel by channel basis
from within the HyperNet software. This software configuration and
utilization of the various HLIM-2 channels in a Program Net is covered in
Chapter 7 and within the Master Icon Listing in Appendix A.

HLIM-2; EVENT INPUT APPLICATION

The Event function of the HLIM-2 allows for the recording of the state of an ON/OFF
type input. Configured as an Event input, a channel will accept a powered input
signal (ranging from 0 to a maximum of 15VDC) or a contact closure (dry contact)
input.

♦ For powered input signals, the HLIM-2 Event function defines

signals less than 1VDC as a Low level and greater than 4VDC
(15VDC max) as a High level.

♦ For contact closure type inputs, power is automatically supplied

from the HLIM-2 channel circuitry via a 100Kohm pull-up
resistor (R1 in Figure 3... -13).

Channel input impedance is greater than 30K ohm.
A 40mS debounce circuit can be enabled via software which can be used to filter out

`contact bounce’ (Refer to the Master Icon Listing in Appendix A for details).

USING THE OM-3203-18

Figure 3... -

10:

Counter

icon (HLIM-

2)

3... INTERFACE MODULES

HLIM-2; COUNTER INPUT APPLICATION

The Counter function of the HLIM-2 provides an accumulating total of signal
transitions received at its input.

Configured as a Counter type input, a channel will accept a powered input signal
ranging from 0 to a maximum of 15VDC or a contact closure (dry contact) input.

♦ For powered input signals, the HLIM-2 Counter function defines

signals less than 1VDC as a Low level and greater than 4VDC
(15VDC max) as a High level.

♦ For contact closure type inputs, power is automatically supplied

from the HLIM-2 channel circuitry.

In Counter mode, 16,777,216 transitions can be received before the counter will roll­over to 0 and begin counting up again. This may be a consideration during the
implementation of a Counter channel within a Program Net and is covered in the
Master Icon Listing, Appendix A.

Channel input impedance is greater than 30K ohm.
A 40mS debounce circuit can be enabled via software which can be used to filter out

`contact bounce’ (see below).

Event / Counter Input Signal Connections:

To utilize an HLIM-2 channel as an Event or Counter input, connect the input
signal positive lead to an Input terminal (Chan A, B, C, or D) and the
negative lead to one of the four Common terminals on the TSA PORTx
terminal strip (Figure 3... -11). Note that all of the four Common terminals
are interconnected and connect directly to the OM-320 circuit ground. Refer
to Chapter 7 for steps to generate a TSA Wiring printout for use in making
field wiring connections.

Common

Contact Closure Application

Contact Closure

Isolation from Relay contact closure

Powered Signal Application

TTL or CMOS

Channel A

Channel B

1 2 3 4 5 6 7 8 9 10 11 12

Common

Channel C

Channel D

HL020

15VDC Max

12

VDC

Lamp

Figure 3... -11: Contact closure and Powered type Event or Counter

signal input connections

USING THE OM-320 3-19

Figure 3... -

12:

Frequency

icon

(HLIM-2)

3... INTERFACE MODULES

CAUTION: Note that a direct connection exists between
the common (-) terminal on all four channels of the HLIM­2 (Figure 3... -13). When connecting to multiple event or
counter signal sources sharing a common ground or
reference, insure that the source’s ground or reference is
connected to the terminal strip `common’ terminal to
prevent shorting out of the source signal and possible
damage to the HLIM-2 or TSA.

For most counter and event applications, shielding is not necessary due to
the relatively low input impedance of the channel and the high noise
immunity of the HLIM-2 channel input.

HLIM-2; FREQUENCY INPUT APPLICATION

An HLIM-2 channel configured as a Frequency type input can measure input
frequencies ranging from approximately 5Hz to 20KHz. The channel will accurately
measure frequencies of sine, square, or sine approximating input waveforms with
peak to peak amplitudes of 300mVDC to 15VDC. Channel input impedance is
greater than 30K ohm within the specified input range.

The HLIM-2 incorporates an AC coupled front-end amplifier for use with low
amplitude signals ( see AMP in Figure 3... -13).

Figure 3... -13: Simplified schematic of HLIM-2 input channel (single

channel shown)

Frequency Signal Connection:

To utilize an HLIM-2 channel as a Frequency input, connect the input signal
positive lead to one of the four Input terminals (Chan A, B, C, or D) and the

USING THE OM-3203-20

3... INTERFACE MODULES

negative lead to one of the four Common terminals on the TSA PORTx
terminal strip (Figure 3... -14). Note that all of the four Common terminals
are interconnected and connect directly to the OM-320 circuit ground..
Refer to Chapter 7 for steps to generate a TSA Wiring printout for use in
making field wiring connections.

CAUTION: Note that a direct connection exists between
the common (-) terminal on all four channels of the HLIM­2 (Figure 3... -13). When connecting to multiple
frequency sources sharing a common ground or
reference, insure that the source’s ground or reference is
connected to the terminal strip `common’ terminal to
prevent shorting out of the frequency signal and possible
damage to the HLIM-2 or TSA.

For Frequency recording applications with small signal amplitude, high
frequencies, long lead length and/or in noisy environments, twisted pair wire
will provide extra noise immunity. In extremely noisy applications, shielded
wire may be required. If shielded wire is used, the shield at the OM-320 end
should be connected to an external earth ground (Figure 3... -14) or if
available, a grounded Shield connection provided on another type installed
interface module (such as the HLIM-1).

NOTE: Do not ground the shield wire at the end away from the OM-320.

TSA Terminal Strip

Shielded Twisted
Pair Line

Frequency
Source A

Channel A

Channel B

Channel C

Channel D

Common

1 2 3 4 5 6 7 8 9 10 11 12

+

HL022

-

Frequency
Source B

+

-

Shield

Earth Ground

Figure 3... -14: Frequency input terminal strip connections (two inputs

shown)

USING THE OM-320 3-21

Digital

Output icon

(HLIM-2)

3... INTERFACE MODULES

HLIM-2; DIGITAL OUTPUT APPLICATION

The HLIM-2 provides four channels dedicated as outputs. These channels can be
configured for functions such as alarming. The output is a current limited voltage
signal with the voltage/current characteristics shown in Figure 3... -15. As shown,
with a light load, the output voltage maintains approximately 4+ VDC but as the

Figure 3... -15: HLIM-2 Digital output drive

characteristics

current draw increases, current limiting occurs and the output voltage droops. The
output can be short circuited continuously without damage to the output drive
circuitry, but the OM-320 battery life will be drastically reduced.

Note that the when the Output is OFF, it is merely floating, ie it is not driven to a
ground (or shorted to ground) potential. This may be a consideration when driving
TTL or other type inputs. A pull-down resistor (eg 10K) can be added on the terminal
strip connections from the output to the common to provide a low resistance OFF
state if necessary. Keep in mind that this resistor will consume power when the
Output is ON.

Digital Output Signal Connections:

To utilize an HLIM-2 Output channel, connect the load positive lead to an
Output terminal (Chan E, F, G, or H) and the load negative lead to one of

TSA Terminal Strip

Chan E (out)

Chan F (out)

Common

Chan G (out)

Chan H (out)

Common

1 2 3 4 5 6 7 8 9 10 11 12

Channel E
LOAD

Channel F
LOAD

HL024a

USING THE OM-3203-22

3... INTERFACE MODULES

the four Common terminals on the TSA PORTx terminal strip (Figure 3... -

16). Note that all of the four Common terminals are interconnected and
connect directly to the OM-320 circuit ground. Refer to Chapter 7 for steps
to generate a TSA Wiring printout for use in making field wiring connections.

USING THE OM-320 3-23

3... INTERFACE MODULES

HLIM-4; RTD / RESISTANCE INTERFACE MODULE OVERVIEW

Overview

The HLIM-4 is a four channel Interface Module for use in the OM-320
System Base. Each of the four channels can be individually programmed
for any combination of RTD (100 ohm or 1000 ohm), Resistance or
Thermistor input via the HyperWare software (HyperNet).

Additionally, for RTD and resistance measurements, 2, 3, and 4-Wire
configurations can be selected. With 3 and 4-wire configurations, the
resistance due to the extension wires is minimized. With 3 or 4-wire
configuration, two input channels are required.

Module Installation:

Refer to the OM-320 User’s Manual Section 3 for instruction on installation
of the Interface Module into the OM-320 Backplane. No special
considerations are required for installation of this module into the System
Base. Upon completion of installation, visually insure that all of the
connector pins are mated in their respective sockets.

Port Requirements / Limitations:

This module can be installed in any of the six Backplane ports.

RTD Input

Hardware Configuration Switches:

No hardware configuration switches are provided on the HLIM-4. All
configuration is done via the HyperNet software.

Software Configuration of the HLIM-4

The HLIM-4 module is completely configured on a channel by channel basis
from within the HyperNet software. This software configuration and
utilization of the various HLIM-4 channels in a Program Net is covered in
overview in Chapter 6, within the Master Icon Listing in Appendix A, and with
specific detail in this document.

When the HLIM-4 module is detected in a OM-320 after clicking on the New
Program button from within HyperNet, four icons representing the HLIM-4
input channels will display on the screen. The icons will display as 2-wire
RTD inputs as the default. These icons can be switched to Resistance or
Thermistor inputs by double-clicking on the icon then on the Change button.

HLIM-4; RTD INPUT APPLICATION

The RTD function of the HLIM-4 allows for the input of Platinum RTD’s with any of
the following characteristics:

♦ 100 or 1000 ohm @ 0’ C
♦ European (0.0385) or American (0.0392) alpha coefficient curve
♦ 2, 3, or 4-wire configuration

The actual temperature is calculated from the resistance and can be output in either
degrees C or F. Two input temperature ranges are provided for maximizing span

USING THE OM-3203-24

Thermistor

Input

Resistance

Input

3... INTERFACE MODULES

and ultimate resolution of the readings. The RTD element resistance is measured
using a constant current ratiometric technique which provides excellent stability over
time and temperature.

Refer to the Excitation Current Table for current levels utilized in the excitation of
the RTD elements.

HLIM-4; THERMISTOR INPUT APPLICATION

The Thermistor function of the HLIM-4 allows for the input of 10,000 ohm @ 25C
NTC thermistors conforming to the Fenwall Curve 16 or equivalent RT curve.

The actual temperature is calculated from the resistance and can be output in either
degrees C or F. Four input temperature ranges are provided for maximizing span
and ultimate resolution of the readings. The Thermistor element resistance is
measured using a constant current ratiometric technique which provides excellent
stability over time and temperature. Due to the high resistance vs temperature ratio,
only 2-wire configuration is provided (and required).

Refer to the Excitation Current Table for current levels utilized in the excitation of
the Thermistor element under test.

HLIM-4; RESISTANCE INPUT APPLICATION

The Resistance function of the HLIM-4 can measure resistances ranging from 200
ohm to 400,000 ohm full scale. 2, 3, or 4-wire configurations can be used depending
on absolute accuracy requirements.

Twelve input resistance ranges are provided for maximizing span and ultimate
resolution of the readings. The resistance is measured using a constant current
ratiometric technique which provides excellent stability over time and temperature.

Refer to the Excitation Current Table for current levels utilized in the excitation of
the resistance elements being measured.

HLIM-4; INPUT SIGNAL CONNECTION METHODS:

For all three signal types, RTD, thermistor, and resistance, a ratiometric resistance
measurement technique is used. In the case of the RTD and thermistor
measurements, a software conversion is then used to convert this resistance into
temperature.

In measuring the resistance of a distant element with a conventional 2-wire
connection configuration, the resistance of the lead wires running from the OM-320
TSA terminal to the actual sensing element itself will add resistance and
corresponding error. The magnitude of these errors depends on the resistance of the
lead wires which is a function of wire gauge, temperature, and any connection
resistance. If the resistance is small relative to the resistance being measured, this
additive lead wire resistance can be ignored (eg in thermistor or Kohm resistance
measurements). However, in applications of RTDs or lower resistance ranges this
lead wire resistance can add up to substantial measurement errors... especially if
long runs or lighter gauge lead wire is used. For example, in a 100 ohm RTD, 0.4
ohms of lead wire resistance would translates to a reading error of 1 Deg C.

To minimize these lead wire induced errors, the HLIM-4 supports 3-wire and 4-wire
connection methods. Connection diagrams and descriptions for each of the wiring
methods follow.

USING THE OM-320 3-25

2-Wire
Config

3... INTERFACE MODULES

2-Wire Configuration

The 2-wire configuration is easiest to use and allows for utilization of all four
input channels of the HLIM-4 as individual channels. All three input types,
RTD, thermistor, and resistance can be measured with the 2-wire technique.
For short runs, heavier gauge lead wires and/or higher resistance
measurements, the 2-wire technique will provide excellent performance with
minimal error.

Calculating Lead Wire Effects

To calculate resistance errors induced by lead wires in a 2-wire
configuration:

1. Estimate the total length of the lead wire to be used.

2. Multiply this length by the resistance per foot of the wire
to be used. Complete wire tables are available from wire
manufacturers and in many electronic reference books.
For general reference, an abbreviated table is included
below.
Note that wire resistances are typically given per 1000
foot.

3. Assess the effects of this resistance on the required
accuracy. For RTD applications, tables are available
from the manufacturer that correlate RTD element
resistance to degrees over the usable range. As a
general guideline, a 100 ohm RTD will have a 1 Degree
C change for every 0.36 ohms, a 1000 ohm RTD will
have a 1 degree C change for every 3.6 ohms (hence the
increasing popularity of the 1000 ohm RTD).

Wire Gauge ohms per 1000 ft

@ 25C (77F)

26 41.6 48
24 26.2 30.2
22 16.5 19.0
20 10.4 11.9
18 6.5 7.5
16 4.1 4.7

Table 5: Typical Copper Wire resistance

ohms per 1000 ft

@ 65C (149F)

2-Wire TSA Connections:

For each Interface Module Port, a 12 position terminal strip is
provided on the TSA. Each HLIM-4 input channel utilizes 3 of the
12 terminals (1-2-3, 4-5-6, 7-8-9, 10-11-12). Connect the input
signal to the first two of the three input terminals (1-2, 4-5, 7-8, 10-

11) on the TSA. A wire jumper must then be installed from the

second to the third terminal (2-3, 5-6, 8-9, 11-12).

USING THE OM-3203-26

RTD Element

3... INTERFACE MODULES

Refer to Chapter 6 for steps to generate a TSA Wiring printout after
construction of a Program Net for use in making field wiring
connections.

D

C

B

A

21 1211109876543

Jumper

Cable Shield

hl-2wire

Figure 3... -17; 2-Wire Configuration

For long lead wire runs and in applications in electrically noisy
environments, it is recommended that twisted pair and/or shielded
wire be used. The extension wire shield can be connected to the 3rd
terminal (ground) along with the jumper. If shielded wire is used, a
ground wire should be run from one of the shield/ground (3rd)
terminals on the TSA to an earth ground connection to conduct away
noise picked up by the shield conductor. Terminals 3, 6, 9, and 12
are all internally connected so a single grounding wire will suffice.
Refer to Figure 3-8 in the OM-320 Users Manual.

3-Wire
Config

3-Wire Configuration

The 3-wire configuration is used in applications where the lead wire effects
calculated as above will have a significant error inducing effect on the
resistance measurement. The 3-wire configuration requires two input
channels (A and B or C and D) to implement. From within the HyperNet
Window, double-clicking Channel A or C icons displays a dialog and allows
for selection of 2, 3, or 4-wire connection. When 3 -wire is selected, a
second corresponding icon (Channel B or D) is removed as this second
channel is required for the 3 -wire measurement.

3-Wire Compensation Theory:

With a 3-wire configuration, the resistance of one of the lead wires is
measured, doubled and then subtracted out of the measured total
element plus lead wire circuit resistance. The 3-wire configuration,
as the name implies, requires the use of three discrete wires from
the TSA to the element. Two of the leads connect to one common
end of the element and the other lead connects to the other end of
the element. The 3-wire configuration provides nearly the same
level of error compensation as the 4-wire configuration with one less
wire.

USING THE OM-320 3-27

3... INTERFACE MODULES

Due to the fact that only one of the lead wires resistance is actually
measured and the other lead wire is assumed to match, in using the
3-wire configuration, it is important that both lead wires used for the
excitation current (connected to terminals 1 & 2, or 7 & 8 and
opposite ends of the element) are of the same approximate length,
same gauge, and operating at the same temperature. The third lead
(connected to terminal 4 or 10) can be of lighter gauge if desired as
a very low current flows through it.

3-Wire TSA Connections:

As can be seen in the 3-Wire Wiring Diagram, each channel
requires 6 of the 12 terminals. Channel A uses terminals 1 through
6, and Channel C uses terminals 7 through 12.

RTD Element

Two matching gauge Excitation wires should connect from opposite
ends of the element and to terminals 1-2 or 7-8 on the TSA. A third
Sense wire then connects from the element (sharing the connection
with a lead from terminal 1 or 7 on the TSA) to terminal location 4 or

10. Two wire jumpers must then be installed connecting terminals 2-

3 and 5-6 for Channel A and 8-9 and 11-12 for Channel C.
Refer to Chapter 6 for steps to generate a TSA Wiring printout

after construction of a Program Net for use in making field wiring
connections.

3rd Wire used as SENSE lead

Cable Shield

Figure 3... -18: 3-Wire Configuration

21 1211109876543

A

C

Jumpers

hl-3wire

For long lead wire runs and in applications in electrically noisy
environments, it is recommended that twisted pair and/or shielded
wire be used. The extension wire shield can be connected to
terminal 6 or 12 (ground). If shielded wire is used, a ground wire
should be run from one of the ground terminals on the TSA to an
earth ground connection to conduct away noise picked up by the
shield conductor. Terminals 3, 6, 9, and 12 are all internally
connected so a single grounding wire will suffice. Refer to Figure 3­8 in the OM-320 Users Manual.

USING THE OM-3203-28

4-Wire

Config

3... INTERFACE MODULES

4-Wire Configuration

The 4-wire configuration is used in applications where the lead wire effects
calculated as above will have a significant error inducing effect on the
resistance measurement. The 4-wire configuration provides the best
compensation for lead wire resistance at the expense of running a 4th lead.
The 4-wire configuration requires two input channels (A and B or C and D) to
implement. From within the HyperNet Window, double-clicking Channel A
or C icons displays a dialog and allows for selection of 2, 3, or 4-wire
connection. When 4-wire is selected, a second corresponding icon (Channel
B or D) is removed as this second channel is required for the 4-wire
measurement.

4-Wire Compensation Theory:

With a 4-wire configuration, the excitation current flows to and from
the element through one pair of leads. The actual voltage
developed across the element is then measured using a second pair
of Sense leads that conduct a very small amount of current (hence
adding negligible I * R voltage measurement error) .

The 4-wire configuration, as the name implies, requires the use of
four discrete wires from the TSA to the element. Two of the leads
connect to one end of the element and the other two to the other end
of the element.

Due to the fact that the excitation current flows through a separate
pair of leads, wire gauge, temperature effects, and connection
resistance has no effect on the accuracy of the readings. The
Sense leads (connected to terminals 4-5 or 10-11) can be of lighter
gauge if desired as a very low current flows through them.

4-Wire TSA Connections:

As can be seen in the 4-Wire Wiring Diagram, each channel
requires 6 of the 12 terminals. Channel A uses terminals 1 through
6, and Channel C uses terminals 7 through 12.

The Excitation wires connect from opposite ends of the element and
to terminals 1-2 or 7-8 on the TSA. A second pair of Sense wires
then connects from opposite ends of the element to terminals 4-5 or
10-11. A wire jumper must then be installed connecting terminals 2­3 for Channel A and 8-9 for Channel C.

Refer to Chapter 6 for steps to generate a TSA Wiring printout
after construction of a Program Net for use in making field wiring
connections.

USING THE OM-320 3-29

3... INTERFACE MODULES

RTD Element

C

Jumper

hl-4wire

Excitation leads

+

+

Cable Shield

Figure 3... -19: 4-Wire Configuration

A

21 1211109876543

-

-

Sense leads

For long lead wire runs and in applications in electrically noisy
environments, it is recommended that twisted pair and/or shielded
wire be used. The extension wire shield can be connected to
terminal 6 or 12 (ground). If shielded wire is used, a ground wire
should be run from one of the ground terminals on the TSA to an
earth ground connection to conduct away noise picked up by the
shield conductor. Terminals 3, 6, 9, and 12 are all internally
connected so a single grounding wire will suffice. Refer to Figure 3­8 in the OM-320 Users Manual.

Range Excitation

Current

Range Excitation

Current

Res 200 ohm 1 mA Res 200,000 ohm 10 uA
Res 200 ohm 10 mA Res 400,000 ohm 10 uA
Res 400 ohm 1 mA RTD-100 ohm 300C 1 mA
Res 400 ohm 10 mA RTD-100 ohm 850C 1 mA
Res 2000ohm 100 uA RTD-1000 ohm 300C 100 uA
Res 4000 ohm 100 uA RTD-1000 ohm 850C 100 uA
Res 10,000 ohm 100 uA Therm -32 to 250C 10 uA
Res 20,000 ohm 100 uA Therm -4 to 250C 10 uA
Res 40,000 ohm 10 uA Therm +10 to 250C 10 uA
Res 100,000 ohm 10 uA Therm +25 to 250C 100 uA

Excitation Currents used for HLIM-4 Ranges

USING THE OM-3203-30

NOTES:

3... INTERFACE MODULES

USING THE OM-320 3-31

3... INTERFACE MODULES

HLIM-8; DIGITAL I/O INTERFACE MODULE OVERVIEW

Overview:

The HLIM-8 is an eight channel Interface Module for use in the OM-320
System Base. Each of the eight channels can be individually programmed
for any combination of Event input or Digital output via the HyperWare
software (HyperNet).

Module Installation:

Refer to Chapter 3 for instruction on installation of the Interface Module into
the OM-320 Backplane. No special considerations are required for
installation of this module into the System Base. Upon completion of
installation, visually insure that all of the connector pins are mated in their
respective sockets.

Port Requirements / Limitations:

This module can be installed in any of the six Backplane ports.

Hardware Configuration Switches:

No hardware configuration switches are provided on the HLIM-8. All
configuration is done via the HyperNet software.

Event icon

(HLIM-8)

Software Configuration of the HLIM-8:

The HLIM-8 module is completely configured on a channel by channel basis
from within the HyperNet software. This software configuration and
utilization of the various HLIM-8 channels in a Program Net is covered in
Chapter 7, within the Master Icon Listing in Appendix A, and within this
document.

HLIM-8; EVENT INPUT APPLICATION

The Event function of the HLIM-8 allows for the recording of the state of an ON/OFF
type input. Configured as an Event input, a channel will accept a powered input
signal (ranging from 0 to a maximum of 26VDC) or a contact closure (dry contact)
input.

♦ For powered input signals, the HLIM-8 Event function defines

signals less than 1VDC as a Low level and greater than 4VDC
(26VDC max) as a High level.

♦ For contact closure type inputs, power is automatically supplied

from the HLIM-8 channel circuitry via a 100Kohm pull-up
resistor (R1 in Figure 3... -20).

Channel input impedance is greater than 30K ohm.
A 40mS debounce circuit can be enabled via software which can be used to filter out

`contact bounce’ (Refer to the Master Icon Listing in Appendix A for details).

USING THE OM-3203-32

3... INTERFACE MODULES

HL032

Figure 3... -20: Simplified schematic of HLIM-8 input/output

channel (single channel shown)

Event Input Signal Connections:

To utilize an HLIM-8 channel as an Event input, connect the input signal
positive lead to an Input terminal (Chan A, B, C, D, E, F, G, or H) and the
negative lead to one of the four Common terminals on the TSA PORTx
terminal strip (Figure 3... -21). Note that all of the four Common terminals
on the terminal strip (3, 6, 9, 12) are interconnected and connect directly to
the OM-320 circuit ground. Refer to Chapter 7 for steps to generate a TSA
Wiring printout for use in making field wiring connections.

Common

Contact Closure Application

Contact Closure

Isolation from Relay contact closure

Chan C

Chan B

Common

Chan D

Common

Chan E

Chan F

Chan A

1 2 3 4 5 6 7 8 9 10 11 12

Chan G

Chan H

Common

Powered Signal Application

TTL or CMOS

15VDC Max

12

VDC

Lamp

Figure 3... -21: Contact closure and Powered type Event signal input

USING THE OM-320 3-33

Digital

Output icon

(HLIM-8)

3... INTERFACE MODULES

CAUTION: Note that a direct connection exists between
the common (-) terminal on all eight channels of the
HLIM-8. When connecting to multiple event signal
sources sharing a common ground or reference, insure
that the source’s ground or reference is connected to the
terminal strip `common’ terminal to prevent shorting out
of the source signal and possible damage to the HLIM-8
or TSA.

For most event applications, shielding is not necessary due to the relatively
low input impedance of the channel and the high noise immunity of the
HLIM-8 channel input.

HLIM-8; DIGITAL OUTPUT APPLICATION

An HLIM-8 channel configured as a Digital Output can provide an ON/OFF voltage
signal for alarming applications. The output is a current limited voltage signal with
the approximate voltage/current characteristics shown in Figure 3... -22. As shown,
with a light load, the output voltage maintains approximately 4+ VDC but as the

Figure 3... -22: HLIM-8 Digital output drive

characteristics

current draw increases, current limiting occurs and the output voltage droops. The
output can be short circuited continuously without damage to the output drive
circuitry, but the OM-320 battery life will be correspondingly reduced.

USING THE OM-3203-34

3... INTERFACE MODULES

Digital Output Signal Connections:

To utilize an HLIM-8 channel as a Digital Output, connect the load positive
lead to an Output terminal (Chan A, B, C, D. E, F, G, or H) and the load
negative lead to one of the four Common terminals on the TSA PORTx
terminal strip (Figure 3... -23). Note that all of the four Common terminals
are interconnected and connect directly to the OM-320 circuit ground (see
Figure 3... -20). Refer to Chapter 7 for steps to generate a TSA Wiring
printout for use in making field wiring connections.

TSA Terminal Strip

Channel A

B

CommonCD

1 2 3 4 5 6 7 8 9 10 11 12

LOAD

LOAD

EFCommon

HL034

Common

Figure 3... -23: HLIM-8 Digital output terminal strip

connections

G

H

Common

USING THE OM-320 3-35

3... INTERFACE MODULES

HLIM-5

HLIM-5; PCMCIA MEMORY CARD MODULE

Overview:

The HLIM-5 is a special function Interface Module for use in the OM-320
System Base. The HLIM-5 provides capability to record data to a removable
SRAM based memory card (Omega Engineering Part Numbers; MC-50, MC­100, MC-200) rather than to internal OM-320 memory. This memory card
can then be read through a PD-1, PCMCIA Drive, installed (connected to) on
a PC.

In addition to this function, the HLIM-5 provides support circuitry for the MM-

14.4 and MM-2400 modems. These optional internal modems provide
phone line based control and interrogation of the OM-320 as well as a
Pager Alarm function. The modems plug directly into the HLIM-5 and can
be field installed.

Module Installation:

Installation of the HLIM-5 into the OM-320 System Base is unique in that it
has a memory card socket that projects through the front panel of the OM­320 (Figure 3... -24). For this reason, the HLIM-5 can only be installed into
Backplane Port 6.

Modem Option

Front Panel

Figure 3... -24: HLIM-5 installation in Port 6

To install the HLIM-5 follow these steps:

1. Relocate any Interface Module already installed in Port

6. Refer to the Interface Module Installation, page 3-2
for general Interface Module installation and removal
instructions.

2. On the OM-320 front panel, remove the two retaining
screws and the cover over Option Port 2. Save the
screws and cover.

3. Follow the instructions specified in the Interface Module
Installation, page 3-2 to install the HLIM-5 into the OM­320 Backplane. Note that one circuit board of the HLIM-5
actually fits along the edge of the backplane and nearly
touches the metal front panel of the OM-320 (Figure 3...

-24). Upon completion of installation, visually insure that

Other Modules

HL026

USING THE OM-3203-36

3... INTERFACE MODULES

all of the connector pins are mated in their respective
sockets.

4. Carefully align and fasten in place the special HLIM-5
memory card socket bezel plate provided with the HLIM­5 module. Use the two machine screws removed in step

1.

Configuration of the HLIM-5:

The presence of a HLIM-5 is detected automatically by the OM-320 upon
power-up. No additional software or hardware configuration of the module is
necessary.

Operation of the HLIM-5 and PCMCIA Memory Card:

For full details on the configuration and use of the PCMCIA card, refer to
Chapter 6.

NOTE

Numerous types of PCMCIA cards are currently

available on the market utilizing various

technologies. To insure compatibility with the HLIM-

5, utilize only Omega Engineering supplied memory

cards or verify alternate parts compatibility with

Omega Engineering Technical Support prior to

plugging into the OM-320.

USING THE OM-320 3-37

3... INTERFACE MODULES

MM-2400; 2400 BAUD INTERNAL MODEM MODULE

Overview:

The MM-2400 is a 1200/2400 Baud telephone modem module designed for
installation internally in the OM-320 System Base. The MM-2400 provides
direct connection between the OM-320 and a standard voice quality
telephone line. This will allow the full complement of serial communications
and control of the OM-320 from a remotely located PC equipped with a
modem.

The MM-2400 is a low power modem, drawing approximately 50mA during
operation (off-hook) and 0 mA while quiescent (on-hook). It installs on the
HLIM-5 Interface Module.

Modem Module Installation:

The MM-2400 plugs into a HLIM-5 PCMCIA Interface Module, then into the
OM-320 System Base backplane. The MM-2400 telephone line connectors
project through the front panel of the OM-320 via Option Port 1. In
installation, the MM-2400 is plugged into the HLIM-5 and fastened in place,
then the entire assembly is installed into the OM-320 System Base. The
HLIM-5 / MM-2400 assembly can only be installed into Backplane Port 6, as
it utilizes the front panel Option Ports.

To install the MM-2400, follow these steps:

1. If an HLIM-5 (without the MM-2400 is currently installed
in Port 6, remove it. If another Interface Module is
installed in Port 6, relocate it to another Port. Refer to
the Interface Module Installation section, page 3-2 for
general Interface Module installation and removal
instructions.

1. On the OM-320 front panel, remove the four retaining

Figure 3... -25: Modem module installation onto HLIM-5

USING THE OM-3203-38

3... INTERFACE MODULES

screws and the covers over Option Ports 1 and 2. Save
the screws and cover.

2. After discharging any static electricity in your body (see
Interface Module Handling precautions at the start of this
chapter), remove the MM-2400 from its static proof bag.
Unplug the terminal strip plug and set aside. Orient the
MM-2400 module as shown in Figure 3... -25, and plug
the gold pins on the modem module into the mating
black connector on the HLIM-5. Visually check that the
pins are all in the connector.

3. Install the two machine screws provided with the MM­2400 through the HLIM-5 circuit board and into the two
plastic standoffs on the MM-2400. Tighten the screws
snugly.

4. Unplug the two position terminal plug from the MM-2400
module.

5. Follow the instructions specified in the Interface Module
Installation Section, page 3-2 to install the HLIM-5 / MM­2400 assembly into the OM-320 Backplane. Upon
completion of installation, visually insure that all of the
connector pins are mated in their respective sockets.

6. Carefully align and fasten in place the special HLIM-5
memory card socket bezel plate provided with the HLIM­5 module over Option Port 2 and the special bezel
provided with the MM-2400 over Option Port 1. Use the
machine screws removed in step 1.

7. Plug in the terminal strip plug removed in step 3.

Telephone Line Connection:

A standard voice grade telephone line can be used with the MM-2400. The
two phone conductors (tip and ring) can be connected to the MM-2400 via
the provided plug-in terminal plug or a modular phone plug. Polarity is not
critical for either connection method.

Terminal Plug method: Route the phone line through one of the
strain reliefs at the bottom of the OM-320 enclosure. Strip back the
phone lead insulation and connect the conductors to the terminal
plug (polarity is not critical). The plug can then be plugged into the
mating connector on the MM-2400 accessible through the OM-320
front panel Option Port 1.

Modular Phone Plug method: Plug a telephone cord equipped
with a 6/2 modular phone plug (RJ-12 type) into the modular phone
socket accessible through the OM-320 front panel Option Port 1.
Insure that the phone conductors are installed into the center two
locations of the plug (polarity is not critical).

Various length phone extension cords with the RJ-12 type modular
phone plugs on each end are readily available from most phone
supply stores. Insure that the `telephone base’ type cord is used...
not the `handset’ cord as the handset plug is smaller and will not
effect a good connection.

Plug the other end of the phone cord into the telephone wall jack.

USING THE OM-320 3-39

3... INTERFACE MODULES

Hardware Configuration Switches:

No hardware configuration switches are provided on the HLIM-5 or the MM-

2400. All configuration is done via the HyperWare software.

Operation of the MM-2400:

The presence of the installed HLIM-5 and MM-2400 is detected
automatically by the OM-320 upon power-up. The MM-2400 is self­configuring with the exception of one parameter... the number of rings
before the OM-320 answers an incoming call. This parameter is set from
within HyperNet (the Global icon) and is thoroughly explained within the
Master Icon Listing in Appendix A under the Global icon section.

Additional information on the setup and configuration of the modem located
at the PC is provided in Appendix K.

USING THE OM-3203-40

3... INTERFACE MODULES

MM-14.4; 14.4KBAUD INTERNAL MODEM MODULE

Overview:

The MM-14.4 is a 1200, 2400, 4800, 9600, 14,400 Baud telephone modem
module designed for internal installation in the OM-320 System Base. The
MM-14.4 provides direct connection between the OM-320 and a standard
voice quality telephone line. It allows the full complement of serial
communications and control of the OM-320 from a remotely located modem
equipped PC.

The MM-14.4 is a low power modem, drawing approximately 125mA during
operation (off-hook) and 0 mA while quiescent (on-hook). It installs on the
HLIM-5 Interface Module.

Installation / Operation:

The MM-14.4 is installed and configured identically to the MM-2400. Refer
to the MM-2400 installation and configuration instructions in the previous
section for details.

Additional information on the setup and configuration of the modem located
at the PC is provided in Appendix K.

USING THE OM-320 3-41

4... HYPERWARE™ SOFTWARE INTRODUCTION

4... HYPERWARE™ SOFTWARE INTRODUCTION

SOFTWARE OVERVIEW

Included with the OM-320 System is HyperWare™, a multi-functioned Windows™
based software package. HyperWare is an integrated program that works with the
OM-320 to provide communications, programming and collected data display.
Integrated in the HyperWare program are the following windows / environments:

♦ HyperComm™ - supports serial communications between the

OM-320, the PC, and the PCMCIA drive graphically. Via
HyperComm, Status inquiries can be made, data is downloaded,
and Program Nets are transferred between the PC, the PCMCIA
drive and/or the OM-320,

♦ HyperNet™ - a visual programming environment for

developing Program Nets via Icons and connections. The
developed Net is then transferred to the OM-320 memory where
it provides operating instructions for the logging session.

♦ Post Processing (including HyperPlot™) - for graphing and

data conversion of OM-320 collected data.

♦ HyperTrack™ - providing real-time data display of Program

Net nodes as they are processed by the OM-320.

Figure 4... -1: Organization of HyperWare software

Each of the above HyperWare windows is covered in a separate chapter within this
manual. In a typical data collection session with the OM-320, all of the above
functions will be used.

PC REQUIREMENTS

To install and use HyperWare, the following minimum equipment is required:

USING THE OM-320 4-1

4... HYPERWARE™ SOFTWARE INTRODUCTION

♦ 386 or higher IBM PC compatible
♦ 4 Meg (minimum) of RAM memory
♦ Mouse or other pointing device
♦ Serial port for OM-320 connection (via Modem or RS-232 link)
♦ Microsoft Windows 3.1
♦ VGA display
♦ 5 Meg of Hard disk space
♦ Windows supported / installed printer (optional)

HYPERWARE INSTALLATION

To install the HyperWare program onto your PC hard disk follow these steps:

1. Start Microsoft Windows.

2. Insert the HyperWare Program disk #1 into your floppy drive.

3. From the Program Manager's File menu, select Run, then type
a:install (or b:install) then <ENTER>

4. Follow the on screen directions for installing the software.
Dialogs prompting for User input will display during the
installation providing the opportunity to customize the
installation. For most Users, selecting the default responses to
the prompts will provide a fool-proof installation.

5. After installation, double-click on the new HyperWare icon (from
within the Program Manager) to launch the HyperWare
application.

UPGRADING HYPERWARE TO A NEW VERSION:

Instructions for upgrading HyperWare from a previous release are supplied with the
new upgrade diskette.

4-2

4... HYPERWARE™ SOFTWARE INTRODUCTION

HYPERWARE PROGRAM TOPOLOGY

Upon launch of the HyperWare program, the HyperComm window will be displayed.
From the HyperComm window, switching to other windows (HyperNet, HyperTrack,

and Post-Processing) is performed by clicking on the buttons displayed on the button
bar at the top of the HyperComm window. HyperWare can be visualized as shown
in Figure 4... -1. From the other windows, return to the HyperComm window by
clicking on the HyperComm button at the left end of the button-bar.

Figure 4... -2: The Opening HyperComm Window

USER INTERFACE

HyperWare complies with the conventional keyboard and mouse commands that
are used in most Windows applications. Some commands require double-clicking
(such as the Enable and Stop commands via serial communications) and others
utilize a visual click and drag of icons (as in construction of Program Nets and for
icon based serial communications).

In the HyperComm window and throughout HyperWare, passing the cursor over
icons and buttons results in a short descriptor display on the Status Message Bar in
the lower left corner of the screen.

HyperWare features on-line help using the conventional Windows help format.
Press the <F1> key at any time or uitilize the Help menu to select options for
HyperWare help.

USING THE OM-320 4-3

4... HYPERWARE™ SOFTWARE INTRODUCTION

NOTES:

4-4

5... HYPERCOMM™ COMMUNICATIONS

5... HYPERCOMM™ SERIAL COMMUNICATIONS

OVERVIEW

Upon launching HyperWare, the HYPERCOMM window (Figure 5... -1) will appear with
graphic images of a PC with a connected PCMCIA card drive (optional) and a OM-

320. From within this window, communications between the PC and the OM-320 as
well as communications between the PC and the PCMCIA card drive are initiated
and handled.

Figure 5... -1: HyperComm serial communications window (no serial connection)

The external PCMCIA card drive is an optional system item. Data and Program Net
information is transferred between the PC and the PCMCIA card drive by simply
dragging and dropping the appropriate icons overlaying the PC and the drive.
Chapter 6 contains details on the setup and use of the PCMCIA card feature.

In serial communication between the OM-320 and the PC, both RS-232 and
telephone modem communications are supported. A simple dialog box is provided
for the communication link setup, thereafter all communications are handled by
dragging icons (representing information) between the graphic PC and OM-320.

Communications between the PC and a connected OM-320 are required for a
multitude of functions including download of OM-320 collected data, programming of
the OM-320, and real-time data display.

From the HyperComm window, access to the HYPERNET, HYPERTRACK, and POST-
PROCESSING windows is achieved by clicking on one of the three buttons on the
Button Toolbar.

USING THE OM-320 5-1

5... HYPERCOMM™ COMMUNICATIONS

ESTABLISHING AN RS-232 LINK

RS-232 Hardware Connection:

Select and plug in one of the provided DB-9 to RJ-12 adapters to fit the PC
serial port desired for OM-320 communications. A 9-pin and a 25-pin
adapter are provided with the OM-320. Plug one end of the provided RS­232 cable (CAR-4) into the adapter modular jack and the other into the
Serial Port jack on the front of the OM-320 and turn OM-320 System Power
ON.

HyperComm Connection via RS-232:

After launching HyperWare and display of the opening screen, the
HYPERCOMM window will be displayed. Move the cursor over the graphic
DB-25 type connector (center of the screen on the cable) and double-click to
bring up the SERIAL COMMUNICATIONS dialog box (Figure 5... -2).

Figure 5... -2: Serial Communications setup dialog box (RS-232 mode)

For RS-232 communication, insure that the USE MODEM check box in the
MODEM CONTROL section is not checked.

Select the PORT using the pull-down list boxes under the PORT PARAMETER
SECTION. Select the port to which the RS-232 adapter is connected. For

RS-232 communications 19,200 Baud is automatically selected and will
provide the fastest data transfers..

5-2

USING THE OM-320

5... HYPERCOMM™ COMMUNICATIONS

TIP: If the port number is unkown, select one of the
ports then attempt to connect (see following). If
unsuccessful, change the selected Port and try again.

After selecting the port, click on the CONNECT button to initiate
communication with the OM-320. At this time, HyperWare will attempt to
communicate with the OM-320 . Close the SERIAL COMMUNICATIONS dialog
box by clicking the OK button and HyperWare will return to the HYPERCOMM
window ready for communication.

If the link fails, check the following:

♦ Is the cable connected?
♦ Is the Omega Engineering supplied adapter used?
♦ Insure that the adapter used is the one that was supplied

with the OM-320. (other Omega Engineering products
use other similar looking but funtionally different
adapters)

NOTE: LBI supplied adapters are wired for proper
compatibility between the OM-320 and the PC. If an
alternatively sourced adapter is used, insure that it
complies with the wiring specified in Appendix I.

Also, adapters that convert DB-25 to DB-9 (and vis-a­versa) commonly cause problems. Utilize the proper
adapter supplied with the OM-320 (both DB-9 and DB-25
are supplied).

♦ Is the OM-320 power ON?
♦ Select another serial port from within the SERIAL

COMMUNICATIONS dialog box and retry.

ESTABLISHING A TELEPHONE MODEM LINK

Modem Hardware Configuration:

Before attempting a link to a OM-320 via telephone modem, insure the
following equipment requirements are met:

Ρ The OM-320 must have a MM-14.4 or MM-2400 Modem Option

installed. This modem is referred to as the remote modem in this
manual.

Ρ The PC must have a Hayes compatible modem installed or connected

and powered. This modem is referred to as the local modem in this
manual.

Ρ Info on the PC modem capabilities must be on hand (ie Baud rate

capabilities, installed port, etc)

USING THE OM-320 5-3

5... HYPERCOMM™ COMMUNICATIONS

HyperComm Connection via Modem:

Launch HyperWare and after the opening screen, the HYPERCOMM window
will be displayed. Move the cursor over the graphic DB-25 type connector
(center of the screen on the cable) and double-click to bring up the SERIAL
COMMUNICATIONS dialog box (Figure 5... -2).

Click on the USE MODEM check box under MODEM CONTROL and the dialog
will change slightly (Figure 5... -3) to enable editing of parameters in the

MODEM CONTROL section. Edit the various parameters within the MODEM
SERIAL COMMUNICATIONS dialog box per the following guidelines:

Port:

Specify the PORT using the pull-down list box under the PORT
PARAMETER SECTION. Select the port to which the modem is

connected.

TIP: If the port number to which the modem is
connected is unkown, select one of the ports then
attempt to connect (see following). If unsuccessful,
change the selected Port and try again.

5-4

USING THE OM-320

5... HYPERCOMM™ COMMUNICATIONS

Figure 5... -3: Serial Communications setup dialog box (Modem mode)

Baud:

Specify the baud rate rate that will be used to communicate between
the PC and the local modem. Set this baud rate per the following

Local Modem Capability Set Dialog Box Baud To:

1200 baud 1200 baud
2400 baud 2400 baud

9600 or faster baud 19,200 baud

Table 5... -1: Local modem settings

table:

FYI: The remote modem (at the OM-320) will
automatically adapt to the baud rate of the calling
modem.

Redial:

If this box is checked, HyperWare will automatically make another
attempt to call the OM-320 if the first attempt fails for any reason.
The time specified in the edit box is a delay time to wait before
attempting the next call.

USING THE OM-320 5-5

5... HYPERCOMM™ COMMUNICATIONS

Phone:

A short dialing directory of frequently called OM-320 numbers can
be maintained using the List Box provided.

ADDING A NEW DIRECTORY ENTRY:

To add a directory entry, use conventional text editing
commands to highlite then type over an existing entry. The entry
will not be lost and a new entry will be added.

The format for the directory entry consists of text followed by a
colon, then the phone number.

USER TEXT:619-555-1212

The phone number may contain numbers, hyphens, parenthesis
and commas with the following action:

♦ Numbers - digits 0 through 9 are dialed
♦ Hyphens and parenthesis - ignored during dialing
♦ Commas - insert a two second delay during dialing.

Delays may be required for accessing an outside line on
some phone systems.

EDITING AN EXISTING DIRECTORY ENTRY

Select the entry to be edited via the drop down list box. Using
the mouse, highlite the text to be edited and type in corrections.

REMOVING DIRECTORY ENTRIES

The phone list is maintained within the hyperlog.ini file. This file
is located in the Windows directory and can be edited with any
text editor. Before editing this file, close the HyperWare
application and make a backup copy of the hyperlog.ini file in
case it needs to be restored. Two lines in the hyperlog.ini file
need to be deleted to properly remove a phone directory entry.
Follow these steps to remove the directory entry:

1. Close the HyperWare application.

2. Locate the hyperlog.ini file in the windows directory and
make a copy of it (eg hyperlog.bak)

3. Using Notepad, open hyperlog.ini

4. Locate the section titled [Modems]

5. Locate the line starting with PhoneX= where X is a
number and the entry to the right of the equal sign is the
entry to be removed.

6. Make a note of the value of X. Then delete the entire
line starting with PhoneX =

7. Locate and delete a second line with the same value of
X that starts with ModemX= which will be located in the
same section.

8. Save and Exit the editor. Re-launch HyperWare and
check that all is well.

5-6

Modem:

HyperComm includes the standard configurations for three major
modem brands, Hayes Compatible, US Robotics, and Zoom. Refer

USING THE OM-320

5... HYPERCOMM™ COMMUNICATIONS

to the modem’s manual for the command set used by the modem
installed at the PC. Note that most modems (although not
necessarily manufactured by Hayes, US Robotics, or Zoom) can
utilize one of these three configurations.

Clicking on the Modem list box and selecting the desired modem will
automatically configure the various modem parameters to meet
most User’s needs.

If a modem with a command set different from the supplied three is
used, a custom Modem Type entry can be added to the Modem list
box. To enter a custom Modem Type, the Dial Prefix, Hangup
command, and Initialization strings need to be added. Refer to the
User’s manual supplied with your modem and follow these steps to
add a custom Modem Type entry:

1. Click on the Modem list box arrow and enter a new
Modem configuration name.

2. Edit the Dial Prefix text box with the command required
by your modem. Upon commencing of dialing, this
Prefix string is sent immediately before the phone
number. For most modems this will be ATDT (if touch­tone dialing is supported by the phone line) or ATDP (for
pulse dialing on phone lines not supporting touch-tones)

3. Edit the Hangup text box for the requirements of your
modem. Most modems will use ATH. The Hangup
string is transmitted to the modem when the User clicks
on the Hangup button from within the Modem
Communications dialog.

4. Edit the Initialization text box for your modem’s
requirements. A multitude of variations are possible for
this initialization string and the modem User’s manual
should be referenced carefully. The initialization string is
sent to the modem immediately after clicking on the Dial
button within the Modem Communication dialog. Key
parameters to specify in the modem initialization string
include:

Ρ Verbal Response codes ENABLED
Ρ Full Response code set ENABLED (eg Busy,

Connect 14400/ARQ, etc)

Ρ Echo DISABLED (off)

5. Clicking on the OK button saves the three strings to the
Modem Type name specified in the Modem list box.

After configuring all modem parameters, click on DIAL and the modem
connection sequence will commence. After a short dialing and
communication protocol negotiation between the modems, a dialog box will
show indicating success or failure in making the link.

If successful, click OK . Close the SERIAL COMMUNICATIONS dialog box with
another OK and HyperWare will return to the HYPERCOMM window ready for
communication.

If the link fails, check the following points:

♦ Is the PC to modem cable connected? (external

modems only)

USING THE OM-320 5-7

5... HYPERCOMM™ COMMUNICATIONS

♦ Is the modem power ON? (external modems only)
♦ Is the local modem port selected correctly? If in doubt,

select another serial port from within the SERIAL
COMMUNICATIONS dialog box and retry.

♦ Is the selected baud rate correct for the modem?
♦ Is a working telephone line connected to the modem?
♦ Is there another device using the telephone line (i.e. a

fax machine)

♦ Does the modem work with other communication

programs? If not, this may indicate that the modem port
is conflicting with another serial port.

Additional modem configuration and troubleshooting information is supplied
within Appendix K.

5-8

USING THE OM-320

5... HYPERCOMM™ COMMUNICATIONS

VISUAL COMMUNICATIONS VIA HYPERCOMM™

Once the serial link (via RS-232 or modem) is established, a complete cable will
show between the OM-320 and the PC and additional icons will overlay the OM-320
graphic (Figure 5... -4). Depending on the type of link established, a modem or DB­25 connector will display in the middle of the cable. At this time, control and
interrogation commands can be sent to the OM-320.

Figure 5... -4: HyperComm serial communication window (connection established)

Communication Techniques

Visual communication has been designed into the HyperComm Window
allowing for intuitive mouse driven communication. Two methods are used
for communicating commands between the PC and the OM-320:

Drag and Drop of Icons: Icons representing various types of
information are overlayed on the PC and OM-320 graphics. By
dragging and dropping these icons between the PC and the OM-320,
data communication is implemented.

For example, to set the OM-320 Clock to the current PC time,
merely click and hold on the Clock Icon overlaying the PC, drag it
over the the OM-320 and release it. A confirmation dialog will
display to insure your actions.

USING THE OM-320 5-9

5... HYPERCOMM™ COMMUNICATIONS

Double-Clicking Icons: Immediate commands can be executed by

double-clicking on many of the icons. For example, to Enable the
OM-320, position the cursor over the Enable Button and double-click
and a confirmation dialog will display to insure your actions.

TIP: Some of the icons can be double-clicked on as a
short-cut command. For example, double-clicking on the
Clock Icon overlaying the OM-320 allows for directly
setting the clock via text entry.

Communication Icons and their Functions

Enable Button Icon

Double-clicking on this button performs the same function as
pressing the Enable button on the front of the OM-320. After
double-clicking, a dialog will appear to confirm the action. If any
error conditions exist (eg the Program Net is incompatible with the
hardware) a warning dialog will display and the OM-320 may not be
Enabled. Operational Status can always be confirmed with the
Status Query command (below).

If the OM-320 is Rotary Memory mode, and data has been stored to
memory, the memory will have to be cleared before Enabling is
allowed.

Stop Button Icon

Double-clicking on this button performs the same function as
pressing the Stop button on the front of the OM-320. After double­clicking, a dialog will appear to confirm the action. Operational
Status can always be confirmed with the Status Query command
(below).

Clear Button Icon (OM-320 Clear not PCMCIA Clear)

When the OM-320 is not Enabled, double-clicking on this button
results in a clearing of memory (after confirmation). After double­clicking, a dialog will appear to confirm the action. Memory Status
can always be confirmed with the Status Query command (below).

The OM-320 memory can be cleared while the OM-320 is Enabled.
However, If the OM-320 is Enabled, only memory containing data
that has been downloaded will be cleared. This allows for OM-320
use in long duration continuous acquistion and download periods
without missed data.

Unit Name and ID Query

Each OM-320 can be assigned an ID and short Name. The ID and
NAME are retained in OM-320 memory until changed via the
following procedure and are not cleared with power down or Memory
Clear commands. Both entries can be displayed on the OM-320

5-10

USING THE OM-320

Figure 5...

-5: Status
icon

5... HYPERCOMM™ COMMUNICATIONS

LCD under the STATUS menu and are also available via a OM-320
Status Query from the PC (following).

To program the OM-320 ID and NAME, move the cursor over the
LCD on the OM-320 and double-click. A dialog will open for editing.
OK will reprogram the OM-320 to the new ID and NAME.

Status Query

At any time, the OM-320 can be interrogated for its operational
Status.

Figure 5... -6: OM-320 Status report dialog

Drag and drop the Status Icon from the OM-320 to the PC and
release it. The OM-320 Status dialog (Figure 5... -6) will open
detailing operational information.

Reported information includes:

UNIT INFORMATION:

OM-320 VERSION:

Specifies the OM-320 version number.

UNIT NAME AND UNIT ID:

User programmable information for tracking of equipment
(see procedure for setting described above).

USING THE OM-320 5-11

5... HYPERCOMM™ COMMUNICATIONS

UNIT TIME:

The current date and time on the OM-320 internal real time
clock.

PROGRAM NET INFORMATION:

NAME AND DESCRIPTION:

Information that has been User programmed in the Global
Icon from within HyperNet.

CURRENT OPERATIONAL STATE:

OPERATIONAL MODE:

Indicates if the unit is Enabled, Stopped, Idle, etc.

REMAINING MEMORY:

Specifies the percentage and Kilobytes of data memory still
available. When using this number for estimating available
logging time consideration must be made for varying
sampling rates and data storage formats.

# OF SAMPLES LOGGED:

Specifies the number of samples recorded to memory.

SYSTEM SUPPLY VOLTAGE

Displays the OM-320 supply voltage. If internal batteries
are installed in the OM-320 and an external power supply is
also connected, the displayed Supply Voltage refers to the
greater of the two.

FYI: The displayed Supply Voltage is
measured at an internal node on the power
supply circuitry. Displayed battery voltage
will be the voltage of the internal batteries.
External supply voltage will be
approximately 1.2 volts higher than
indicated.

BACKUP LITHIUM CELL:

The state of charge display for the lithium cell (used for data
memory and clock backup) will display GOOD or LOW. If
LOW is displayed, download any desired data memory, then
replace the lithium cell (See Appendix D).

INSTALLED H/W (HARDWARE)

This box lists the standard (eg relays, GPDI, etc) and installed
hardware (eg Interface Modules, modems, etc.)

ACTIVE MESSAGES

Displays any messages that have been generated due to
abnormal operating conditions (such as a power failure) or as a
result of a Message Icon being activated from within a Program
Net (Chapter 7).

5-12

USING THE OM-320

Figure 5...

-7: Time
Set icon

Figure 5...

-8: Net
icon

5... HYPERCOMM™ COMMUNICATIONS

Time Set

The OM-320 real-time-clock can be set in two different ways.

Synchronized with PC Time: By dragging the Clock Icon from
the PC to the OM-320 and releasing, the PC system time is
programmed into the OM-320.

Set Absolute Time: Double-clicking on the Clock Icon
overlaying the OM-320 graphic will display a Time Set dialog.
Edit the dialog and select OK to program the OM-320 clock to the
displayed date and time. This method is handy when
communicating via modem with OM-320s located in different
time zones.

Program Net Transfer

Refer to Chapter 7 for details on the transfer of Program Net to and
from the PCMCIA card.

After the serial link is established, a Net icon will display overlaying
both the OM-320 and the PC in the HyperComm window. The
Program Net icon overlaying the OM-320 represents the Program
Net currently loaded into OM-320 memory. The Program Net
overlaying the PC represents the last Program Net edited from
within the HyperNet (Chapter 7) development window or the last
Program Net downloaded from a serially connected OM-320.

Program Nets can be transferred in both directions:

♦ Downloaded from the OM-320 to the PC to review/edit

the Program Net currently loaded into OM-320 memory.

♦ Uploaded from the PC to the OM-320 to reprogram the

OM-320

At any time, the Program Net currently loaded in the OM-320
memory can be downloaded to the PC. Click and drag the Program
Net Icon overlaying the OM-320 to the PC and release it. This
Program Net can then be edited, saved, and/or uploaded back to the
OM-320.

To reprogram the OM-320 with a new Program Net, click and drag
the Net Icon overlaying the PC to the OM-320 and release it. The

Net icon on the PC represents the last Program Net (*.NET) file
edited from within the HyperNet (Chapter 7) window or the last
Program Net downloaded from a serially connected OM-320.

If a different Program Net is to be transferred, open the desired
Program Net from within HyperNet, then return to the HyperComm
window and drag the icon to the OM-320.

NOTE: If the target OM-320 memory contains collected
data, the User will be prompted to download or clear the
data prior to reprogramming. Upon upload of the new
Program Net, data in the OM-320 memory will be lost.

USING THE OM-320 5-13

Figure 5...

-9:

Memory

icon

5... HYPERCOMM™ COMMUNICATIONS

NOTE: During the upload of a Program Net to the OM­320, several integrity tests are performed. One of the
tests checks the size of the Program Net to insure that it
will fit into the available OM-320 memory. In the event
that the Program Net is too large, reduce the number of
icons and retry. Refer to the README file supplied with
the HyperWare for an approximate maximum number of
icons that can be included in a Program Net for that
version of software.

Data Download

Refer to Chapter 6 for details on the Download of Data from the
PCMCIA card.

To transfer data from the OM-320 memory to a file on the PC disk,
click and drag the Memory icon overlaying the OM-320 to the PC
and release it. After a prompt dialog, the data will be downloaded.
Upon completion of the serial data transfer, a filename will be
requested by a pop-up dialog.

5-14

Figure 5... -10: File Information comments entry dialog

After entry of the filename, a dialog will display for the User to enter
additional File Information to be stored with the file (Figure 5... -10).
This information includes a short single line Title as well as room for
extensive comments. The File Information can be accessed at a
later time from within the Post-Processing window and HyperPlot.
Upon closing of this dialog, the Download file will then be processed
and stored to disk as an ascii file with the extension *.HLD.

Data downloads can be performed while the OM-320 is Enabled and
executing a Program Net that uses either of the Log to Full modes
(see the Global Icon in Appendix A). If the OM-320 is in the Rotary

USING THE OM-320

Figure 5...

-11: Probe
Point icon

5... HYPERCOMM™ COMMUNICATIONS

Memory mode, the unit must be Stopped before data can be
downloaded.

Probe Point Query

During the construction of a Program Net within HyperNet™, the
User can opt to connect Probe Point icons to various nodes
throughout the net. These Probe Point icons allow the User to view
the current values on the nodes to which they are connected. One
of the ways that the Probe Point values can be viewed is by clicking
and dragging the Probe Point icon overlaying the OM-320 to the PC
and releasing it. The last updated value at the Probe Point node is
then displayed on the PC. Optionally, by clicking on the Resample
Periodically check box, readings will be communicated to the display
dialog as the node is updated.

FYI: Probe Point is used for the icon name as
connecting these icons to a node on a Net is somewhat
analogous to putting a test meter probe on the Net nodes
and reading a value.

If a Program Net that contains Probe Point icons is currently loaded
into PC memory, then a Probe Point icon will display overlaying the
PC.

Figure 5... -

12:

Password

lock

Password

The logger contains a multi-level password system that can be used
to foil unauthorized access via telephone modem or RS-232
connection. The logger password system allows for five passwords,
a Master and four User passwords.

MASTER PASSWORD

The Master password allows access to all logger functions,
including the ability to manage the User passwords. To enable or
change the Master password, double-click on the Password icon
(small lock graphic) in the upper left corner of the logger graphic
in the HyperComm Window . A dialog will appear which allows
the Master password to be changed, and the User passwords to
be configured.

USER PASSWORDS

Up to four User passwords can be set. These passwords allow for
specific control of access to individual logger functions. Access
to the User password configuration dialog requires the Master
password. To configure User passwords, double-click on the
Password icon, enter the Master password, and click on the
Configure button. A dialog will open allowing the User passwords
to be configured. Enter user passwords in the four text boxes at
the top of the dialog. Specific logger functions can then be
checked to allow access to that function for that password.

USING THE OM-320 5-15

5... HYPERCOMM™ COMMUNICATIONS

Keep track of Passwords as they can not be disabled

via a serial link without knowing the Master

PASSWORD PROTECTED FUNCTIONS

Access to the following functions can be granted/denied via

CAUTION

password.

5-16

Figure 5... -13: Password Configuration Dialog

the User password configuration dialog. A checked box
indicates that access is granted to the corresponding
function.

♦ Download Net Program
♦ Download Data
♦ Upload Net Program
♦ Enable
♦ Stop
♦ Clear Memory
♦ Get Status
♦ Set Time
♦ Monitor Probes

USING THE OM-320

5... HYPERCOMM™ COMMUNICATIONS

♦ Real Time Tracking
♦ Set Unit Name/ID

DOWNLOAD NET - A SPECIAL CASE

In order to Download Data or run a Real Time Tracking session,
the Program Net that is running in the logger must also be loaded
into HyperWare. Because of this, HyperWare automatically
Downloads the Net from the logger prior to executing either
function. Since this is required, any time that either the Download
Data or Real Time Tracking boxes are checked, the Download
Net box is automatically checked.

DISABLING PASSWORDS

To disable the logger Password feature, the Master Password is
required. Double-click on the Password (lock) icon, enter the
Master password when prompted and select Change Master
Password. Click the OK button without entering any text in the
New Password or Confirm text boxes. This will clear the Master
password and allow access to all logger functions without a
password.

USING THE OM-320 5-17

5... HYPERCOMM™ COMMUNICATIONS

NOTES:

5-18

USING THE OM-320

6... PCMCIA CARD CONFIGURATION AND USE

6... PCMCIA CARD CONFIGURATION AND USE

OVERVIEW:

The OM-320 utilizes the optional PCMCIA Card System to provide expanded data
storage capacity within the OM-320 and/or to provide storage to a removable
memory card that can be removed and transported to another location where the
data is read from the card and saved into a file on the a PC.

For expanded memory capability, the OM-320 requires the HLIM-5 Interface Module
which includes the PCMCIA card socket and one or more PCMCIA cards. If the
memory card is to be used in a transportable mode, an external PCMCIA drive (PD­1 or also referred to as TMD-650) is required at the PC location.

With PCMCIA memory card system the following features are available:

♦ Expanded memory... OM-320 memory storage increase from

the standard 40,000 readings to in excess of 250,000 readings.

♦ Transportable data... the memory card can be removed from the

OM-320 and transported to a PC location where the data can be
read from the card

♦ Field reprogramming of the OM-320... a Program Net can be

built in the office through HyperWare, then loaded onto the
PCMCIA card for transport to the OM-320 location

PCMCIA CARD SYSTEM COMPONENTS:

The PCMCIA card system consists of the following components:

♦ HLIM-5 Interface Module: the HLIM-5 interface module installs

into the OM-320 System Base and contains the socket into
which the memory card inserts.

NOTE

This socket is not PCMCIA spec compliant. For this
reason, do not plug any products into this socket that

have not been provided or approved by Omega

Engineering Incorporated.

♦ Memory Card: with varying capacity from 50,000 samples to in

excess of 250,000 samples, this is the transportable SRAM
memory onto which data and Program Nets are stored.

♦ PD-1 (also referred to as the TMD-650) PCMCIA Drive: this

external drive connects to the PC parallel (printer) port and
provides read/write capability between the PC (running
HyperWare software) and the PCMCIA card.

♦ PD-1 Software Drivers: a set of software drivers (CardTalk)

provided with the PD-1 that are installed to hard disk and
provide the necessary software interface between the PD-1drive
and HyperWare. Also included are a number of utilities for use
in formatting, copying etc on the PCMCIA card.

USING THE OM-320 6-1

6... PCMCIA CARD CONFIGURATION AND USE

PCMCIA CARD - EXPANDED MEMORY CAPACITY APPLICATION

Hardware Configuration

For applications using the PCMCIA card only for expanded memory capacity
within the OM-320, the only components required are the HLIM-5 and one or
more memory cards (formatted for us with the OM-320 PCMCIA card
system). The HLIM-5 module should be installed per the Interface Module
instructions in Chapter 3. Memory cards for use in this system are supplied
pre-formatted from Omega Engineering Incorporated.

Software Configuration

No special software configuration is required. When the HLIM-5 is installed
in the OM-320, the OM-320 will auto-detect the presence of the module.

Operation of the HLIM-5 and PCMCIA Memory Card:

To use the PCMCIA card for data storage...

1. STOP the OM-320. Cycle the OM-320 power to OFF.

2. Visually inspect the formatted and prepared (as supplied
from Omega Engineering Incorporated ) PCMCIA card
connector for any debris in any of the connector holes
and clean if necessary.
The Write Protect switch located on the end of the card
opposite the connector should be slid away from the WP
position to enable writing of data to the memory card
(Refer to Figure 6... -1).

3. Orient the card with the top label facing toward the right
side of the OM-320 and slide the card fully into the card
slot in Option Port 2. Upon full insertion, the Eject button
next to the slot will be fully extended.

4. Turn the OM-320 Power ON. Press the ENABLE
button.

5. The PCMCIA card will be automatically detected and
the LCD will display ENABLED - PCMCIA. All logged
data will be stored in the PCMCIA card.

♦ If the OM-320 displays STOPPED after Enabling, the

Write Protect switch on the PCMCIA card is in the
PROTECT position. Correct and reinsert the card.
Press ENABLE and observe the display.

♦ If the PCMCIA card does not contain the proper format

and support files (as supplied from Omega Engineering
Incorporated) a message on the display will indicate
CARD ERROR. The card must be reformatted and the
support files rewritten before use.

USING THE OM-3206-2

6... PCMCIA CARD CONFIGURATION AND USE

CAUTION:

If the memory card does not easily insert fully into

the socket, double-check the orientation. The socket

is designed to prevent full insertion with reversed

orientation.

For data storage on the memory card, the Write

Protect switch must be in the disabled position (ie

slid away from the WP mark)

NOTE

Numerous types of PCMCIA cards are currently

available on the market utilizing various

technologies. To insure compatibility with the HLIM-

5, utilize only Omega Engineering supplied memory

cards or verify alternate parts compatibility with

Omega Engineering Technical Support prior to

plugging into the OM-320.

PCMCIA CARD - TRANSPORTABLE DATA APPLICATION

For applications of the PCMCIA card for transportable data, the OM-320 must be
configured with the HLIM-5 Interface Module and an the external PCMCIA drive (PD-

1) must be connected to the PC and interface drivers installed. The correct PCMCIA
drive letter must then be specified within HyperWare.

OM-320 Configuration

The HLIM-5 module should be installed per the Interface Module instructions
in Chapter 3. Memory cards for use in this system are supplied pre­formatted from Omega Engineering Incorporated.

PC / External PCMCIA Drive Configuration

The following steps must be performed to configure the PC and the PD-1
external PCMCIA card drive. The procedure for connecting the PD-1 (also
known as TMD-650) drive and configuring the software drivers is contained
within the User’s Guide supplied with the PD-1 drive. Additional comments
and suggestions are provided below.

Connecting the PD-1 Drive:

Follow the instruction detailed in the User’s Guide supplied with the
drive.

USING THE OM-320 6-3

6... PCMCIA CARD CONFIGURATION AND USE

Installing the CardTalk Drivers:

Follow the detailed instructions in the User’s Guide supplied with the
drive. The installation process creates a directory called CardTalk
and copies a number of files into it. It then modifies the
AUTOEXEC.BAT and CONFIG.SYS files. A few additional
comments on this installation process:

♦ Insure that the installation is done from DOS as

specified

♦ Either the Express or the Custom Installation can be

used.

♦ For use with HyperWare, only the SRAM card drivers

are required. (ie at the prompt, do not select to install
the FFS2 drivers for Microsoft Flash File system as
they are not required)

♦ Two different types of parallel port are available on PC’s

today, the EPP (enhanced parallel port) and Standard.
All installations will run with the Standard port type
selected. If a EPP port is available, selecting this type
will provide slightly faster data read/write performance.
During the installation, if EPP is selected but is not
detected, a message will display and the CardTalk
software will not be installed. If this occurs, repeat the
installation choosing Standard.

♦ Specify the correct printer port to use during installation

(the default is LPT1)

Near the end of the installation process, changes will be made to the
PC AUTOEXEC.BAT and CONFIG.SYS files. Three lines are
added to the CONFIG.SYS file:

DEVICEHIGH=C:\CARDTALK\SSPPORT.SYS /lpt:1
DEVICEHIGH=C:\CARDTALK\CTALKCS.EXE
DEVICEHIGH=C:\CARDTALK\CARDTALK.SYS /A /MEMW

/IOW

In the AUTOEXEC.BAT file, the CARDTALK directory is added to
the PATH.

TIP: These drivers are fairly large and will be loaded into
memory at reboot. For Users running DOS 6.0 or later
with the Multiple Configuration boot options, it may be
desirable to set up an optional load of these drivers.
Refer to the DOS Help and/or manual for details on how
to set up the Multiple Configuration boot.

USING THE OM-3206-4

6... PCMCIA CARD CONFIGURATION AND USE

TIP: Upon boot of the PC with the standard drivers
installed, the PD-1 will be assigned the next consecutive
drive letter. For User’s requiring specific assignment of a
drive letter to the PD-1 drive, the CONFIG.SYS file can
be modified to force the PD-1 drive to be assigned to a
particular drive letter. Refer to the Technical Support
FAQ (frequently asked questions) sheet supplied with the
drive for details.

TIP: For user’s that do not require control of the specific
drive letter assigned to the PD-1 and want to minimize
the size of the loaded PD-1 interface drivers, an older
version of the CardTalk drivers (V2.16 for the TMD-550)
is available. This version requires only 24K of memory
and will support only the SRAM cards used in the OM­320 system. Additionally, this version of drivers does not
allow for a User assigned drive letter... it will
automatically use the next drive letter in the system.

If used, these drivers install into a directory called
DATABOOK instead of the directory called CARDTALK
referred to within this chapter.

NOTE:

The OM-320 and HyperWare PCMCIA card system

has been designed to be implemented using the

external PD-1 PCMCIA drive. Users with PC’s

equipped with integral PCMCIA drives may be able to

utilize drivers supplied with their PC’s for read/write
from DOS formatted SRAM PCMCIA cards. However

due to the variability in PCMCIA card spec

compliance and system configurations,

considerable cautious experimentation may be

required to implement the system.

Quick Test of the PCMCIA Drive Configuration

After installation of the drivers, reboot the PC and the drivers will be
loaded into memory. The drive letter that the PCMCIA drive is
installed as will be displayed briefly in the on-screen messages
displayed during the system boot. Note this letter for future use.

If the system does not correctly identify the drive, error messages
will display. Refer to the PCMCIA drive User’s Guide for instructions
on troubleshooting drive configuration problems.

After a successful configuration, the drive installation can be simply
tested as follows:

USING THE OM-320 6-5

6... PCMCIA CARD CONFIGURATION AND USE

Before inserting a PCMCIA card into the drive, touch

the case of the PC or some other ground to

discharge any static body charge. This step

minimizes the chance of damaging the card by

discharging your body static charge through the

PCMCIA card connector.

1. Insert a formatted and prepared (as supplied by Omega
Engineering Incorporated) PCMCIA card into the drive.
Be sure that a card is inserted fully into the drive before
testing.

2. Use the conventional DOS command DIR X: where X
represents the drive letter assigned to the PCMCIA drive
to read the files on the card.
Three files should be listed on the card:

FORMAT.MEM
NET.MEM
DATA.MEM

CAUTION

HyperWare Software Configuration

After the PD-1 drive has been connected, the drivers installed, an installed
drive letter determined, and access to the drive has been tested through
DOS, HyperWare must be configured.

Launch the HyperWare program under Windows and select the
Options/Paths menu from the HyperComm Window Menu Bar.

1. In the PCMCIA Format Command Text Box specify the
drive and path where the CardTalk drivers are located
followed by the command TCFORMAT.
In most installations, this will be
C:\CARDTALK\TCFORMAT.EXE.

The command TCFORMAT is a special command
supplied with the CardTalk drivers that is used for
formatting PCMCIA cards in the PD-1 drive. The
resulting card format is DOS compatible.

2. In the PCMCIA drive Text Box, specify the drive letter
that is used to access the PCMCIA drive. This letter was
determined and tested in previous steps.

3. Select OK to save the changes and close the dialog.

4. Double-click on the PC drive graphic and HyperWare
will scan the PCMCIA card installed in the drive checking
for proper format and the presence of the three support
files.

USING THE OM-3206-6

6... PCMCIA CARD CONFIGURATION AND USE

PCMCIA Card Usage with HyperWare

The PCMCIA card, in a transportable memory application is typically used to
transfer collected data from a remotely located OM-320 to the PC and/or to
transfer a new Program Net from the PC to a remotely located OM-320.

Transferring Data from the OM-320 to the PC

After data has been stored on a PCMCIA card in the OM-320, the
card can be transported back to the PC location where the collected
data is transferred from the card to a Download File on the PC. The
following steps detail this procedure:

1. Press STOP on the OM-320 front panel and cycle the
OM-320 power OFF. Remove the PCMCIA card with
the Eject button.

2. At this time, a new formatted and prepared card can be
inserted into the PCMCIA card socket and the OM-320
can be powered up and the ENABLE button pressed.
Observe the LCD for any error messages before leaving
the site.
NOTE: review the tips and cautionary measures to be
used in handling and insertion of the PCMCIA card in
the section above titled PCMCIA Card - Expanded

Memory Application

3. Transport the PCMCIA card to the PC location and
insert the card into the PCMCIA drive.

4. Double-click on the PCMCIA drive graphic within the
HyperComm Window and the PCMCIA card will
automatically be scanned. After a short delay, a
Program Net and Data icon will be displayed overlaying
the PCMCIA drive graphic.

5. Drag the Data icon from the PCMCIA drive to the PC
and the data transfer will commence. Refer to Chapter
6 for details on entering comments, etc during the data
transfer process.

6. The PCMCIA card can be cleared by double-clicking on
the CLEAR button located by the PD-1 graphic.

Transferring a Program Net from the PC to the OM­320

A OM-320 at a remote location can be reprogrammed by writing a
Program Net on a PCMCIA card at the PC location, then plugging
the PCMCIA card into the OM-320. The following steps will
implement the programming:

1. Develop the new Program Net at the PC location (see
Chapter 7 on HyperNet Programming for details).
NOTE: it is imperative that the developed Program Net
is compatible with the remotely located OM-320. Great
inconvenience can result if an incompatible Program
Net is developed , transported to the OM-320, and
attempted to be run. Methods to insure this are
discussed in Chapter 7.

USING THE OM-320 6-7

6... PCMCIA CARD CONFIGURATION AND USE

2. Insert a PCMCIA card into the PD-1 drive

3. Drag the Program Net icon from the PC to the PD-1
graphic. A dialog will display stating that any data
currently on the PCMCIA card will be erased. Select OK
and the program is transferred.

4. Transport the card to the OM-320 location. Stop the
OM-320 and cycle the power OFF. Insert the PCMCIA
card.

5. Turn the power ON and press ENABLE. Upon Enabling,
if a Program Net is detected on the card, the OM-320
will automatically be reprogrammed with this Program
Net and start logging data to the card.

6. Proper execution can be confirmed via the LCD Status
display(s).

PCMCIA - MISCELLANEOUS

Formatting PCMCIA cards

Before a PCMCIA card can be used in the OM-320 system, it must be
properly formatted and prepared. As supplied from Omega Engineering
Incorporated, PCMCIA card are already formatted and prepared however,
this procedure is fully supported under HyperWare.

To format and prepare and new card, insert it into the PC-1 drive and
double-click on the PD-1 graphic. HyperWare will detect that the card has
not been formatted nor prepared and a dialog will respond accordingly.
Selecting YES at the request will automatically format the card using the
TCFORMAT.EXE utility from the CardTalk directory, then the 3 required files
(FORMAT.MEM, DATA.MEM, and NET.MEM) will be copied onto the
PCMCIA card.

Windows 95 - Special PCMCIA Card Considerations

In systems running Windows 95, HyperWare cannot format the card by
calling the TCFORMAT command. To format the card, exit windows 95 and
manually run the TCFORMAT command with the following syntax:

TCFORMAT X: where X is the PD-1 drive letter

After the card has been tcformatted, the copying the three support files can
be completed from within HyperWare. Launch HyperWare and double-click
on the drive, then follow the ensuing dialogs.

MEMORY CARD HANDLING / MAINTENANCE

The MC series memory cards are packaged in a protective metal case, however
reasonable care should be exercised in the handling and use of the cards. The card
should not be exposed to water, extremely high or low temperatures (eg on the dash
of a car on a sunny day), or dirt/mud... especially on the connector end.

The MC-XX memory cards utilize an internal lithium cell (Panasonic BR-2325, 3V or
equivalent) for power when not installed in the OM-320 or the PD-1 drive at the PC
location. This lithium cell should be replaced yearly for maximum data integrity.
Data in memory will be maintained for up to 2 hours with the battery removed from

USING THE OM-3206-8

6... PCMCIA CARD CONFIGURATION AND USE

the compartment, however it is highly recommended that any valuable data in the
card be downloaded before replacing the battery.

To replace the cell:

1. Locate a clean area to work.

2. Visually locate the battery access door and lock located on the
end of the memory card opposite the connector end.

1. Using a paper clip or other small probe, slide the Lock pin away
from the embossed LOCK mark.

Figure 6... -1: Memory Card lithium cell access and Write Protect Switch

2. Swing open and remove the battery compartment door . The
lithium cell can then be removed.

3. Slide the new cell into the compartment insuring the positive (+)
side of the cell is toward the top of the card.

4. Carefully insert the battery door and swing it closed.

5. Slide the Lock pin to the LOCK position.

USING THE OM-320 6-9