Omega Products OMWT-SOFT-DDE Installation Manual

OMWT-SOFT-DDE

Version 2.2

Copyright ©2004, Omega Engineering, Inc.

M-4065

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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, human applications.

OMWT-SOFT-DDE Server Contentsxi

Contents

Overview 1

Quick Start .................................................................................................................................1

Description .................................................................................................................................3

OMWT-SOFT-DDE Server and Wireless..................................................................................3

Receivers....................................................................................................................................5

Device List .................................................................................................................................5

Polling ........................................................................................................................................6

Identification..............................................................................................................................6

Filtering......................................................................................................................................6

What is DDE? ............................................................................................................................7

Using DDE with Microsoft® Excel ...........................................................................................8

Using DDE with Microsoft® Visual Basic ................................................................................9

Data Logging..............................................................................................................................9

Diagnostics.................................................................................................................................9

OMWT-SOFT-DDE Main Window 10

Main Window...........................................................................................................................10

Setup ........................................................................................................................................10

Change Port................................................................................................................10

Add/Delete IP Connection.........................................................................................11

View IP Connection Status ........................................................................................12

Outputs.......................................................................................................................13

Search and Add Devices ............................................................................................15

ReConfigure Net ........................................................................................................15

View DDE Variables................................................................................................................16

Errors........................................................................................................................................16

Quit ..........................................................................................................................................16

Help..........................................................................................................................................16

OMWT-SOFT-DDE Server .INI File Format 17

OMWT-SOFT-DDE.ini ...........................................................................................................17

SERVER....................................................................................................................18

Logging......................................................................................................................19

IP Addesses................................................................................................................20

DIGITAL I/O.............................................................................................................20

TEMPERATURE Setup ............................................................................................21

HUMIDITY ...............................................................................................................22

DIGCOUNTER and Directional Counter ..................................................................23

CNTTEMP.................................................................................................................24

FASTCNTTEMP.......................................................................................................25

ALARMTEMP ..........................................................................................................26

Analog Input ..............................................................................................................27

iixContents OMWT-SOFT-DDE Server

Access/Control Reader.............................................................................................. 28

Repeater .................................................................................................................... 28

Dual Discrete Output................................................................................................. 29

Wireless Analog Output............................................................................................ 30

OMWT-SOFT-DDE INI Backup ............................................................................................ 31

OMWT-SOFT-DDE Server DDE Variables 32

Using DDE Links .................................................................................................................... 32

Topic Names ........................................................................................................................... 33

Device Item Names ................................................................................................................. 34

Temperature .............................................................................................................. 34

Digital I/O: DIGITALn............................................................................................. 35

Temperature/Humidity: HUMIDITYn...................................................................... 36

DIGCOUNTER and Directional Counter: DIGCOUNTERn and DIRECTCNTn ... 37

CNTTEMP: CNTTEMPn......................................................................................... 38

FASTCNTTEMP: FASTCNTTEMPn...................................................................... 39

ALARMTEMP: ALARMTEMPn............................................................................. 40

AnalogInput: Ain ...................................................................................................... 41

Access/Control Reader: IDRn................................................................................... 42

Repeater: REPEATERn ............................................................................................ 43

Dual Discrete Output: OUTPUTDISCn.................................................................... 44

Wireless Analog Output: OutputAnalogn ................................................................. 45

Server Item Names .................................................................................................................. 46

OMWT-SOFT-DDE Server Data Logging 48

Features ................................................................................................................................... 48

File Management..................................................................................................................... 49

File Format - Data Log ............................................................................................................ 50

File Format - Error Log ........................................................................................................... 51

OMWT-RECIP Receivers 51

Overview of OMWT-RECIP Receivers .................................................................................. 51

Setting up to use OMWT-RECIP Receivers ........................................................................... 52

OMWT-RECIP Receiver Notes .............................................................................................. 53

Using OMWT-SOFT-DDE with Multiple Ports 54

Multiple Ports Overview ......................................................................................................... 54

Multiple Port Details ............................................................................................................... 54

Error Messages 56

Communication Errors ............................................................................................................ 56

No Devices Attached! ............................................................................................... 56

Error In Finding/Initializing Port. ............................................................................. 56

Cannot Open Communication Port; Already In Use. ................................................ 56

Cannot Find Receiver! .............................................................................................. 56

Cannot find and load lowlevel driver!....................................................................... 56

Runtime Errors ........................................................................................................................ 57

Communication Error: CRC16 or Time Out............................................................. 57

Cannot Find Receiver................................................................................................ 57

OMWT-SOFT-DDE Server Internal Error. .............................................................. 57

OMWT-SOFT-DDE Server Contentsxiii

Corrections 58

Why Use Corrections ...............................................................................................................58

Correction IDs............................................................................................................58

Pre-defined Thermistor ..............................................................................................58

How to use Corrections ............................................................................................................59

Correction.INI file .....................................................................................................59

Predefined Corrections...............................................................................................60

OMWT-SOFT-DDE Server Overviewx1

Overview

Quick Start

When OMWT-SOFT-DDE is run for the first time it displays this help screen. You

may view this help screen again by selecting "Help" from OMWT-SOFT-DDE's

main window.

OMWT-SOFT-DDE is designed to gather data from wireless sensors. OMWT-

SOFT-DDE makes available the data it receives from each sensor through a DDE

link.

The main OMWT-SOFT-DDE Server window will show the total number of devices

in the startup list and how many of those that are online. The offline devices will be

shown in the list box at the bottom of the window.

OMWT-SOFT-DDE can be a stand-alone data logger. When data logging is

enabled, OMWT-SOFT-DDE will store collected data in an ASCII file at a

programmable interval. See section "OMWT-SOFT-DDE Server Data Logging".

This Help and all other Help topics may be accessed from the main window by

selecting Help or pressing F1.

To Get Started:

x

Plug the receiver into your serial port

x

Start OMWT-SOFT-DDE.

x

If necessary, tell OMWT-SOFT-DDE what kind of Receiver you are
using and what COM port it is attached to.

x

When the "Add Wireless Device" screen appears, press the service
mode button on your transmitter to transmit a packet that OMWT­SOFT-DDE can see.

x

When a device appears in the window, you may click to select it and
then press the 'Edit' button to change its label name and transmit time.

x

Press OK to add these sensors to the sensor list and for OMWT-SOFT­DDE to start acquiring data.

2xOverview OMWT-SOFT-DDE Server

If there is not an

OMWT-SOFT-DDE.ini

file or if [Server]NumberDevices=0 and
when OMWT-SOFT-DDE starts, it will automatically search for all devices on the
network and add them to its list of devices to poll.

OMWT-SOFT-DDE Server Overviewx3

Description

OMWT-SOFT-DDE is a data acquisition Dynamic Data Exchange (DDE) server that
acquires data from devices and passes this data using DDE to a client application.
OMWT-SOFT-DDE waits for the device to transmit and then processes the
transmission.

Any Windows® application that can use DDE can obtain this data from the OMWT­SOFT-DDE Server. Examples of such applications include Microsoft® Excel,
Wonderware® Intouch, National Instruments® LookOut, Capital Equipment Corp.®
TestPoint, and general development applications like Microsoft® Visual Basic and
Borland® Delphi.

OMWT-SOFT-DDE can be a stand-alone data logger. When data logging is
enabled, OMWT-SOFT-DDE will also store collected data in an ASCII file at a
programmable interval. Another program such as a spreadsheet or a database
manager can import the data. See section "OMWT-SOFT-DDE Server Data
Logging".

OMWT-SOFT-DDE Server and Wireless

OMWT-SOFT-DDE Server can receive transmissions from wireless devices such as
the wireless temperature transmitter. Other devices include the wireless humidity
sensor and wireless analog input. OMWT-SOFT-DDE uses a receiver such as the
OMWT-REC232-600, OMWT-XREC-SER and the OMWT-RECIP to receive
transmissions from wireless sensors. OMWT-SOFT-DDE can also use multiple
OMWT-RECIP (TCP/IP receivers) to receive data through a TCP/IP connection.

When setting up a wireless network, OMWT-SOFT-DDE passively waits for
transmissions instead of actively polling for devices. This can make the acquisition
of sensors take a longer time than for a wired network as OMWT-SOFT-DDE must
wait for the device to transmit. You can speed up this process by pressing the service
button on the device so that it transmits while you are in the OMWT-SOFT-DDE
Wireless Setup screen.

Each device has an entry in the device's INI file section. OMWT-SOFT-DDE must
wait for a transmission. Therefore, OMWT-SOFT-DDE uses

“polltime”

to estimate
how frequently a transmission should come from a device. It also uses a multiple of
this time to determine if a device is offline. This multiple is configurable by the
user.

If you are using a OMWT-RECIP receiver, please see the section OMWT-RECIP
Receivers for more information on how to use this product.

Wireless Setup

If you have OMWT-SOFT-DDE running with a wireless receiver such as an OMWT­REC232-600, OMWT-SOFT-DDE will display the Setup screen when it starts for the
first time. The setup screen is the method by which OMWT-SOFT-DDE acquires
wireless devices. The default on the setup screen is to accept only packets that are
sent in service mode from the device (the packet is sent by pressing the service button
on the device.) To change this default, uncheck the "Service Mode Only" checkbox.
OMWT-SOFT-DDE will then display all the packets it receives. When OMWT­SOFT-DDE receives a packet from a device new to it, it names the device following
the naming conventions detailed below, and it displays the device's name and serial
number in the window.

4xOverview OMWT-SOFT-DDE Server

You have several options after the device has been displayed. The "Clear New"
button will clear all the devices that have just been received. The "Delete" button
will delete a single device. Click on a device to select it and click on "Delete" to
delete it. To edit a device click on the device to select it and click on "Edit" to edit
the device. There is also a "Stop" button. If you click that button, OMWT-SOFT­DDE will stop listing devices in the window. When you click on the "Stop" button it
becomes a "Receive" button. If you click on that, OMWT-SOFT-DDE will start
receiving packets and listing devices again.

When you are ready, hit "OK", or "Cancel" to exit.

Edit Device

The Edit screen for a new RF device shows the device's serial number, which the
user cannot change, the device's current Label, which can be changed by the user,
and the Transmit Rate for the device. The Label cannot be the same as the label used
by any current device. The Transmit Rate is in seconds. The default value is 60.
OMWT-SOFT-DDE uses the Transmit Rate to determine if a device has gone
offline.

OMWT-SOFT-DDE Server Overviewx5

Receivers

The following is a list of supported receivers:

x

OMWT-REC232-600

x

OMWT-XREC-SER (at 19200 baud)

x

OMWT-RECIP

x

OMWT-REPEAT

Device List

OMWT-SOFT-DDE Server interfaces to a large number of devices. New devices are
continually being created for Wireless network. Check with your distributor for the
latest.

The following is a list of devices supported by OMWT-SOFT-DDE Server:

OMWT-TEMP15 Temperature

OMWT-TEMPRH Temperature/Humidity

OMWT-AIN5V Analog Input 5V

OMWT-AIN10V Analog Input 10V

OMWT-AIN20MA Analog Input 20 milliamp

OMWT-VIB Vibration

OMWT-MOT Motion

OMWT-IRCNT IR Counter

OMWT-THERM Thermisitor

OMWT-DOORCNT Door Counter with Temperature

OMWT-PULSECNT Pulsse Counter with Temperature

OMWT-TEMPALRM Temperature with Alarm

OMWT-ACCESSREADER Access/Control Reader

OMWT-DIRCNT Directional Counter

OMWT-DUALOUT Dual Discrete Output

OMWT-ANGOUT Analog Output

6xOverview OMWT-SOFT-DDE Server

Polling

For a wireless device the polltime has a slightly different meaning. OMWT-SOFT­DDE does not actively poll wireless devices. Rather, it waits to receive a packet
from the devices. Therefore, the polltime is how often OMWT-SOFT-DDE expects
to receive a packet from the wireless devices.

The polltime for a wireless device is configurable during device setup. OMWT­SOFT-DDE will use this time to determine when to mark a device offline. OMWT­SOFT-DDE has a INI file parameter called "Tries" that sets how long a device has to
transmit before it is considered offline. For example, if the device has a polltime of 1
minute, and OMWT-SOFT-DDE has "tries" set to 3, then OMWT-SOFT-DDE will
consider the device offline if it does not receive a packet from that device in 3
minutes ("tries" times "polltime").

Identification

OMWT-SOFT-DDE identifies each device with a unique label name. A client
application uses this label (a DDE topic) to obtain data from the server.

Filtering

For both analog and temperature devices, OMWT-SOFT-DDE allows the user to
define a deadband to control the amount of change that must occur before the server
updates a Client with new data. Deadband is useful to control the amount of
information that is passed through DDE to the client application. For analog devices,
the deadband is entered as the percentage of full scale of Engineering units. For
temperature devices, the deadband is entered in degrees C.

Also for both analog and temperature devices, OMWT-SOFT-DDE provides the
means to filter the data with either an Average, Median or combination Median
Average filter before either logging data or delivering data through DDE. In the
OMWT-SOFT-DDE INI file, you specify the filter type and the number of samples
to filter.

OMWT-SOFT-DDE Server Overviewx7

What is DDE?

Dynamic Data Exchange (DDE) is a standard inter-application communication
protocol built into the Microsoft® Windows® operating system. It allows Windows®
programs that support DDE to exchange data between themselves. By simply
specifying an application, topic, and item, a client application can exchange data with
a server application. A DDE server is a program that has access to data and can
provide that data to other Windows® programs. A DDE client is a program that can
obtain data from a server.

To establish a link with a DDE server, there three pieces of information required:

Application

: When you use a Microsoft® Windows® application to obtain data
from another Windows® application, you must provide the name of the application
you wish to respond to your data requests. Application names are sometimes called
service names.

Topic

: Available Topics are determined by the Application. The application asking
for the data must choose an available topic or data exchange cannot take place.
Topics are general classifications with multiple data items.

Item

: After the Application and Topic, the application must provide the specific

Item. The Item determines the data information related to an application topic.

8xOverview OMWT-SOFT-DDE Server

Using DDE with Microsoft® Excel

Digital Input Example:

Application Name

is: OMWTSOFTDDE

Topic

is: Temp1

Item

is: input

Example of what you would enter into an Excel® spreadsheet cell to read the
temperature OMWT-SOFT-DDE Server.

=OMWTSOFTDDE|Temp1!input

Analog Input Example:

Application Name

is: OMWTSOFTDDE

Topic

is: AI1

Item

is: input

Example of what you would enter into an Excel® spreadsheet cell to read the value
of the analog input via OMWT-SOFT-DDE Server.

=OMWTSOFTDDE|AI1!INPUT

The easiest way to make a DDE Link in an Excel® cell is to use the Clipboard.
Click on the DDE Variables menu option in the main menu of OMWT-SOFT-DDE
DDE Server. Select the information you want, press the Copy Link button and at
Excel select the cell you want the information to be displayed and then click on the
Paste button. Excel® will now show the linked data from the OMWT-SOFT-DDE
Server. See the section "View DDE Variables" for more information.

OMWT-SOFT-DDE Server Overviewx9

Using DDE with Microsoft® Visual Basic

To create a link in Visual Basic to bring real time data from OMWT-SOFT-DDE
DDE Server into a Visual Basic object, do the following: (The following example is
used 'OMWTSOFTDDE|temp1!input'.)

1) Start the OMWT-SOFT-DDE Server and have it polling a device.

2) Place a Label, PictureBox, or TextBox on a Form.

3) Assign the LinkItem Property with the item name (ex: obj.LinkItem = input)

4) Assign the LinkTopic Property with the application and topic names:
LinkTopic=application|topic (ex: obj.LinkTopic = OMWTSOFTDDE|temp1)

5) Assign the LinkMode Property to 1-Automatic (ex: obj.LinkMode = 1)

The DDE link will be established and real time data should be displaying in the
display object.

Visual Basic will save the property settings thus the DDE link settings are saved with
executable. Therefore when the form is created, the executable (or Visual Basic) will
try to reestablish the DDE Link.

Use the method LinkPoke (with Label, PictureBox or TextBox) to poke DDE
information to OMWT-SOFT-DDE Server.

Consult the Visual Basic Help for more information.

Data Logging

OMWT-SOFT-DDE Server can log data to an ASCII file at a programmable interval.
The default name of the file is OMWT-SOFT-DDE.LOG.

A client application can control logging through DDE variables. The client can
start/stop logging or just log a single record.

For diagnostic purposes, OMWT-SOFT-DDE can log errors that have occurred on
the wireless network.

For more information see the section “OMWT-SOFT-DDE Server Data Logging”.

Diagnostics

With OMWT-SOFT-DDE, you can monitor the health of your Wireless network and
the devices on it. OMWT-SOFT-DDE reports through DDE errors that it encounters
while waiting for transmissions. These errors can be noted in an event error log.
See the section called "Server Item Names" for more information.

10xOMWT-SOFT-DDE Main Window OMWT-SOFT-DDE Server

OMWT-SOFT-DDE Main Window

Main Window

OMWT-SOFT-DDE displays the number of devices online and offline. It also lists
the devices that are currently offline displaying the name and serial number of the
device. If OMWT-SOFT-DDE is running with OMWT-RECIP receivers, then for
each offline device it will display the node address, name and serial number of the
device.

Setup

OMWT-SOFT-DDE simplifies setup by automatically finding, identifying and
beginning to poll devices in a network. OMWT-SOFT-DDE assumes default initial
values. You can easily change these values by editing the OMWT-SOFT-DDE.INI
file with an ASCII text editor. (The installation program for OMWT-SOFT-DDE
Server created a short cut to the OMWT-SOFT-DDE.INI file. Double clicking will
automatically start WordPad or Notepad.) See the section "OMWT-SOFT-DDE
Server .INI File Format".

Change Port

The Change Port submenu allows you to switch to another wireless receiver. When
the Change Port submenu is selected, OMWT-SOFT-DDE displays the Select
Communication Port window. Choose one of the following:

AUTO

- instructs OMWT-SOFT-DDE to search Port Numbers 1 to 4 for a

Receiver.

OMWT-REC232-600

– receivers RF (wireless) packets

OMWT-XREC-SER

– receivers RF (wireless) packets

OMWT-RECIP

– uses a receiver that uses the TCP/IP protocol to receive

sensor packet data.

When OK is clicked, OMWT-SOFT-DDE tries to initialize the port. For the
OMWT-REC232-600 and OMWT-XREC-SER, assumes the receiver is present. The
OMWT-XREC-SER must be set to 19200 baud. If OMWT-SOFT-DDE fails,
OMWT-SOFT-DDE displays the OMWT-SOFT-DDE Initializing Error Window
allowing you to retry, select another port or exit OMWT-SOFT-DDE. If OMWT­SOFT-DDE succeeds, OMWT-SOFT-DDE starts listening for sensor packets or
polls devices according to the device list in the INI file.

OMWT-SOFT-DDE Server OMWT-SOFT-DDE Main Windowx11

Add/Delete IP Connection

(OMWT-RECIP Receiver only)

OMWT-SOFT-DDE will display the “Add/Delete IP Connection” screen. IP
addresses already setup will be displayed. The following is a list of the columns:

Node

– Node number for the IP address. OMWT-SOFT-DDE uses this
number to identify this IP connection. OMWT-SOFT-DDE uses this
number to update the DDE item “nodaladdress”.

IP Address

– the IP address that is used to address the receiver.

Port

– the port number that is used along with the IP address to address the

receiver.

Conn

– identifies who initiated the connection. Outgoing: OMWT-SOFT­DDE initiated the connection with the receiver. Incoming: the receiver
initiated the connection with OMWT-SOFT-DDE.

Password

– initial password used to gain access to the receiver.

Description

– a general description field associated with the IP connection.

The following is list of buttons in the “Add/Delete IP Connection” screen:

Test

– OMWT-SOFT-DDE will try to make a connection to this IP address

and report back success or failure.

Add New

– OMWT-SOFT-DDE displays the “New IP Address” screen.

The following is list of the fields to enter to add a new IP connection:

IP Address

– the IP address that is used to address the receiver

Port

– the port number that is used along with the IP address to address

the receiver.

Description

– a general description field associated with the IP

connection.

Password

– initial password used to gain access to the receiver. If the
receiver does not have a password set or does not require a
password then leave this field blank.

Connection

– identifies whether OMWT-SOFT-DDE will initiate the
connection or whether the receiver will initiate the connection.
Outgoing: OMWT-SOFT-DDE initiates the connection. Incoming:
OMWT-SOFT-DDE waits for the receiver to initiate the
connection.

Edit

– OMWT-SOFT-DDE displays the “Edit” screen showing the selected
IP connection. The “Edit” screen has the same fields as the “New IP
Address” screen.

Delete

– delete the selected IP connection.

12xOMWT-SOFT-DDE Main Window OMWT-SOFT-DDE Server

View IP Connection Status

(OMWT-RECIP Receiver only)

OMWT-SOFT-DDE will display the “IP Status” screen. OMWT-SOFT-DDE shows
the current state of the all the connections. The following describes the columns:

Node

– Node number for the IP address. OMWT-SOFT-DDE uses this
number to identify this IP connection. OMWT-SOFT-DDE uses this
number to update the DDE item “nodaladdress”.

IP Address

– the IP address that is used to address the receiver.

Port

– the port number that is used along with the IP address to address the

receiver.

Conn

– identifies who initiated the connection. Outgoing: OMWT-SOFT­DDE initiated the connection with the receiver. Incoming: the receiver
initiated the connection with OMWT-SOFT-DDE.

Description

– a general description field associated with the IP connection.

Status

– the current status of the connection. The following is a list of the

possible status messages:

Never Connected – OMWT-SOFT-DDE never attempted or received a

connection to the receiver

IP Connected – OMWT-SOFT-DDE is currently connected to the

receiver but has not logged in.

Connected – OMWT-SOFT-DDE is currently connected to the receiver

is waiting to receive sensor packets.

Disconnected – OMWT-SOFT-DDE was connected but is now

disconnected from the receiver. If the connection was initiated by
OMWT-SOFT-DDE, OMWT-SOFT-DDE will continually try to
reestablish the connection.

TCP/IP Error – a TCP/IP error was encounter and OMWT-SOFT-DDE

is not connected to the receiver.

No IP Connection – OMWT-SOFT-DDE tried to establish a connection

but failed.

Wrong Password – The receiver requires a login password and the

incorrect password was used by OMWT-SOFT-DDE.

OMWT-SOFT-DDE Server OMWT-SOFT-DDE Main Windowx13

Outputs

Outputs are only send packets. The Output devices do not send packets. Therefore
the setup for an Output sensor must be done manually. Some Outputs need to be
“trained” to the packets that it will receive for from the Server.

New and Edit

Create or edit an Output object to manage an Output sensor. The following

describe the parameters necessary to set up an Output sensor.

Type – “Dual Discrete Outputs” or “12 bit Analog Output”. Select the type

of Output sensor. Note changeable only for the Edit Output window.

Serial Number – Some Outputs sensors can “learn” a serial number. Others

have the serial number preassigned and must be entered in the field.
These sensors have the serial number labeled. For those sensors that
must learn their serial number, OMWT-SOFT-DDE creates a default
serial number. Press the “Generate New Serial Number” button to
generate a new serial number.

Label – name assigned for this Output sensor. The label name is used for

the DDE topic name. This name must be unique. For the Edit
Window, the Label field contains a list box. Select the Output to
modify from the list. You can also change the label for the current
Output.

Node – This field applies only when using the OMWT-RECIP Receiver.

The Node List box contains a list of the OMWT-RECIP Receivers to
send the output packet to. For the“Send All” selection, OMWT-SOFT­DDE sends the packet to all the OMWT-RECIP Receivers.

Dual Discrete Outputs

Send when output B is written – If checked, OMWT-SOFT-DDE will only

send the output packet only when the “outputB” item is written to (DDE
poke). Output A is first written to and the output B. If unchecked,
OMWT-SOFT-DDE will send the output packet when either the
“outputA” or “outputB” items are written to (DDE poke). The state of
both outputs is sent in the same packet.

12 bit Analog Output

Scale – the scale to apply to the raw reading (12 bits: 0 to 4095).

Offset – the offset to apply to the reading after the scale is applied.

Engeering Value = Scale * raw + Offset.

Units – units label for the analog output.

14xOMWT-SOFT-DDE Main Window OMWT-SOFT-DDE Server

Train

The Train dialog is used in the processing of training the Output device to output
packets (as produced by OMWT-SOFT-DDE). Follow these steps to train an Output
device:

1. Select the desired Output from the list of Outputs.

2. Press and hold the button on the Output device (label as “train”).

3. Click the button on the Train window. Repeat until the LED on the
Output device is on.

The Output device is now ready to receive Output packets from OMWT-SOFT-DDE.

OMWT-SOFT-DDE Server OMWT-SOFT-DDE Main Windowx15

Search and Add Devices

OMWT-SOFT-DDE will display the "Add Wireless Device" screen. Devices
already in the OMWT-SOFT-DDE.ini file are displayed in the top portion of the
screen. Follow the setup procedure to add more devices.

The setup screen is the method by which OMWT-SOFT-DDE acquires wireless
d

evices. The default on the setup screen is to accept only packets that are sent in
service mode from the device (the packet is sent by pressing the service button on the
device.) To change this default, uncheck the "Service Mode Only" checkbox.
OMWT-SOFT-DDE will then display all the packets it receives. When OMWT­SOFT-DDE receives a packet from a new device, it names the device following the
naming conventions detailed below, and it displays the device's name and serial
number in the window.

You have several options after the device has been displayed. The "Clear New"
button will clear all the devices that have just been received. The "Delete" button
will delete a single device. Click on a device to select it and click on "Delete" to
delete it. To edit a device, click on the device to select it and click on "Edit" to edit
the device. There is also a "Stop" button. If you click that button, OMWT-SOFT­DDE will stop listing devices in the window. When you click on the "Stop" button, it
becomes a "Receive" button. If you click on that, OMWT-SOFT-DDE will start
receiving packets and listing devices again.

When you are ready, hit "OK", or "Cancel" to exit.

Edit Device

The Edit screen for a new RF device shows the device's serial number, which the
user cannot change, the device's current Label, which can be changed by the user,
and the Transmit Rate for the device. The Label cannot be the same as the label used
by any current device. The Transmit Rate is in seconds. The default value is 60.
OMWT-SOFT-DDE uses the Transmit Rate to determine if a device has gone
offline.

ReConfigure Net

OMWT-SOFT-DDE clears device information from the OMWT-SOFT-DDE.ini
startup file and completes a SearchAdd to build a new device list as if starting for the
first time.

Use caution here

; all changes that you have made manually to the device

information contained in the OMWT-SOFT-DDE.ini file will be deleted and
overwritten. OMWT-SOFT-DDE does not modify the global configuration

parameters contained in the sections Server and Logging of the OMWT-SOFT­DDE.ini file.

16xOMWT-SOFT-DDE Main Window OMWT-SOFT-DDE Server

View DDE Variables

Clicking this menu option shows the most commonly used DDE variables that are
online. Clicking the

show all

check box will display all available DDE Variables. By

selecting a variable and clicking the

copy link

button, the link is copied onto the
windows clipboard where it can then easily be pasted into another program such as
Excel™ or Word™ to automatically create the DDE link. To paste the link in
Excel™ or Word™ after it is on the clipboard, select

paste special

from the

edit

menu; at the next window select

paste as link

.

Errors

OMWT-SOFT-DDE displays the Communication Errors window. This window
shows the last error that occurred while polling devices.

Tries Count: Number of tries that have occurred before a device is considered offline.

Major Error Count: Number of errors that (after tries) took the device offline.

Last Error Code: Number error code of the last error

Last Error Device: The name of the device that had the last error.

Last Error Time: The time when the last error occurred.

Last Error Message: A description of the last error.

Click the Reset button clear the errors and reset the counts.

Quit

When you select this menu option, OMWT-SOFT-DDE terminates.

Help

You select the the Help file's contents or index window or you can display the
OMWT-SOFT-DDE About window.