Omega Engineering M-4066 User manual

OWMT-SOFT-OPC
Version 2.2
Copyright ©2004, Omega Engineering, Inc.
M-4066

OMWT-SOFT-OPC Server Contents xi
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ii xContents OMWT-SOFT-OPC Server
Contents
Overview 1
Quick Start................................................................................................................................. 1
Description ................................................................................................................................ 3
OMWT-SOFT-OPC Server and Wireless ................................................................................. 3
Receivers ................................................................................................................................... 5
Device List ................................................................................................................................ 5
Polling ....................................................................................................................................... 6
Identification ............................................................................................................................. 6
Filtering ..................................................................................................................................... 6
What is OPC?............................................................................................................................ 7
Data Logging............................................................................................................................. 7
Diagnostics ................................................................................................................................ 7
OMWT-SOFT-OPC Main Window 8
Main Window............................................................................................................................ 8
Setup.......................................................................................................................................... 8
Change Port................................................................................................................. 8
Add/Delete IP Connection .......................................................................................... 9
View IP Connection Status ....................................................................................... 10
Outputs...................................................................................................................... 11
Search and Add Devices ........................................................................................... 13
ReConfigure Net ....................................................................................................... 13
Devices.................................................................................................................................... 14
Errors....................................................................................................................................... 14
Quit.......................................................................................................................................... 14
Help......................................................................................................................................... 14
OMWT-SOFT-OPC Server .INI File Format 15
OMWT-SOFT-OPC.ini............................................................................................................ 15
SERVER ................................................................................................................... 16
Logging ..................................................................................................................... 17
IP Addresses.............................................................................................................. 17
DIGITAL I/O ............................................................................................................ 17
TEMPERATURE Setup ........................................................................................... 18
HUMIDITY .............................................................................................................. 19
DIGCOUNTER and Directional Counter ................................................................. 20
CNTTEMP................................................................................................................ 21
FASTCNTTEMP ...................................................................................................... 22
ALARMTEMP.......................................................................................................... 23
Analog Input ............................................................................................................. 24
Access/Control Reader.............................................................................................. 25
Repeater .................................................................................................................... 26
Dual Discrete Output................................................................................................. 26
Wireless Analog Output............................................................................................ 27
OMWT-SOFT-OPC INI Backup ............................................................................................ 28

OMWT-SOFT-OPC Server Contents xiii
OMWT-SOFT-OPC Server Tags 29
Using OPC Tags.......................................................................................................................29
Device Names ..........................................................................................................................29
Device Tag Names ...................................................................................................................31
Temperature...............................................................................................................31
Digital I/O: DIGITALn..............................................................................................32
Temperature/Humidity: HUMIDITYn.......................................................................33
DIGCOUNTER and Directional Counter: DIGCOUNTERnand DIRECTCNTn....34
CNTTEMP: CNTTEMPn..........................................................................................35
FASTCNTTEMP: FASTCNTTEMPn.......................................................................36
ALARMTEMP: ALARMTEMPn.............................................................................37
AnalogInput: AIn.......................................................................................................38
Access/Control Reader: IDRn....................................................................................39
Repeater: REPEATERn.............................................................................................41
Dual Discrete Output: OUTPUTDISCn.....................................................................42
Wireless Analog Output: OutputAnalogn..................................................................43
Server Item Names...................................................................................................................44
OMWT-SOFT-OPC Server Data Logging 47
Features ....................................................................................................................................47
File Management......................................................................................................................48
File Format -Data Log.............................................................................................................49
File Format -Error Log............................................................................................................50
OMWT-RECIP Receivers 51
Overview of OMWT-RECIP Receivers...................................................................................51
Setting up to use OMWT-RECIP Receivers ............................................................................51
OMWT-RECIP Receiver Notes...............................................................................................52
Error Messages 53
Communication Errors .............................................................................................................53
Error In Finding/Initializing Port. ..............................................................................53
Cannot Open Communication Port; Already In Use..................................................53
Cannot Find Receiver! ...............................................................................................53
Cannot find and load lowlevel driver!........................................................................53
Runtime Errors.........................................................................................................................54
Communication Error: CRC16 or Time Out..............................................................54
Cannot Find Receiver.................................................................................................54
OMWT-SOFT-OPC Server Internal Error.................................................................54
Corrections 55
Why Use Corrections ...............................................................................................................55
Correction IDs............................................................................................................55
Pre-defined Thermistor ..............................................................................................55
How to use Corrections............................................................................................................56
Correction.INI file .....................................................................................................56
Predefined Corrections...............................................................................................57

OMWT-SOFT-OPC Server Overview x1
Overview
Quick Start
When OMWT-SOFT-OPC is run for the first time it displays this help screen. You
may view this help screen again by selecting "Help" from OMWT-SOFT-OPC's main
window.
OMWT-SOFT-OPC is designed to gather data from sensors. OMWT-SOFT-OPC
makes available the data it receives from each sensor through OPC tags.
The main OMWT-SOFT-OPC 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-OPC can be a stand-alone data logger. When data logging is enabled,
OMWT-SOFT-OPC will store collected data in an ASCII file at a programmable
interval. See section "OMWT-SOFT-OPC 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:
xPlug the reciever into your serial port
xStart OMWT-SOFT-OPC.
xIf necessary, tell OMWT-SOFT-OPC what kind of Receiver you are
using.
xWhen the "Add Wireless Device" screen appears, press the service
mode button on your transmitter to transmit a packet that OMWT-
SOFT-OPC can see.
xWhen 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.
xPress OK to add these sensors to the OMWT-SOFT-OPC list
xOMWT-SOFT-OPC will create OPC tag objects for each device and
start polling and gathering data from each device.

2xOverview OMWT-SOFT-OPC Server
If there is not an OMWT-SOFT-OPC.ini file or if [Server]NumberDevices 0 and
when OMWT-SOFT-OPC starts, it will automatically search for all devices on the
network and add them to its list of devices to process.

OMWT-SOFT-OPC Server Overview x3
Description
OMWT-SOFT-OPC is a data acquisition OLE for Process Control (OPC) server that
acquires data from devices and passes this data using OPC to a client application.
OMWT-SOFT-OPC waits for the device to transmit and then processes the
transmission.
Any Windows® application that can use OPC can obtain this data from the OMWT-
SOFT-OPCServer. Examples of such applications include Wonderware® Intouch,
National Instruments® LookOut, Capital Equipment Corp.® TestPoint, and general
development applications like Microsoft® Visual Basic and Borland® Delphi.
OMWT-SOFT-OPC can be a stand-alone data logger. When data logging is enabled,
OMWT-SOFT-OPC 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-OPC Server Data Logging".
OMWT-SOFT-OPC Server and Wireless
OMWT-SOFT-OPC 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-OPC uses a wireless receiver such
as the OMWT-REC232-600, OMWT-XREC-SER and OMWT-RECIP to receive
transmissions from wireless sensors. OMWT-SOFT-OPC can also use multiple
OMWT-RECIP Receivers to receive data through a TCP/IP connection.
When setting up a wireless network, OMWT-SOFT-OPC 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-OPC 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-OPC
Wireless Setup screen.
Each device has an entry in the device's INI file section. The INI entry and OPC tag
"polltime" for each device has a different meaning when working with wireless
transmitters. OMWT-SOFT-OPC cannot poll the wireless sensors. It must wait for a
transmission. Therefore, OMWT-SOFT-OPC 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.
Wireless Setup
If you have OMWT-SOFT-OPC running with a wireless receiver such as an OMWT-
REC232-600 or OMWT-XREC-SER, OMWT-SOFT-OPC will display the Setup
screen when it starts for the first time. The setup screen is the method by which
OMWT-SOFT-OPC 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-OPC will then display all the
packets it receives. When OMWT-SOFT-OPC receives apacket 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.
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

4xOverview OMWT-SOFT-OPC Server
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-SOFT-
OPC 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-OPC 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 wireless 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-OPC uses the Transmit Rate to determine if a device has gone
offline.

OMWT-SOFT-OPC Server Overview x5
Receivers
The following is a list of supported receivers:
xOMWT-REC232-600
xOMWT-XREC-SER (at 19200 baud)
xOMWT-RECIP
xOMWT-REPEAT
Device List
OWMT-SOFT-OPC 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 OWMT-SOFT-OPC 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-OPC Server
Polling
For a wireless device the polltime has a slightly different meaning. OWMT-SOFT-
OPC does not actively poll wireless devices. Rather, it waits to receive a packet from
the devices. Therefore, the polltime is how often OWMT-SOFT-OPC expects to
receive a packet from the wireless devices.
The polltime for a wireless device is configurable during device setup. OWMT-
SOFT-OPC will use this time to determine when to mark a device offline. OWMT-
SOFT-OPC 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 OWMT-SOFT-OPC has "tries" set to 3, then OWMT-SOFT-OPC will
consider the device offline if it does not receive a packet from that device in 3
minutes ("tries" times "polltime").
Identification
OWMT-SOFT-OPC identifies each device with a unique label name. A client
application uses this label (a OPC topic) to obtain data from the server.
Filtering
For both analog and temperature devices, OMWT-SOFT-OPC 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 OPC 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-OPC 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 OPC. In the
OMWT-SOFT-OPC INI file, you specify the filter type and the number of samples to
filter.