07 wsos – user guide

WSOS – User Guide
Getting Started

Topics
 Running WSOS
 Adding a new switchgear device
 Configuration files
 Working with files
 History
 Communications

Passwords
System PasswordWSOS
Protection Password CAPM
Operation Password CAPM
Telecontrol Password CAPM

Adding a New Switchgear Device

Configuring Capability and Protocols

Control Screen with Negative Phase Sequence

Configuration Files
WSOS holds the configuration of each
Recloser or Load Break Switch in a
separate switchgear configuration file.
 In the “Off’-Line” mode, WSOS works
with the data in this file.
 This enables configurations to be up-
loaded from the switchgear and
examined off line at a later date and for
configurations to be set up “Off-Line” and
later down-loaded into the switchgear in
the field. 

Working Directory
When opening files WSOS searches the
current working directory to find
switchgear configuration files.
 The working directory defaults to the
installed WSOS directory (c:wsos) but
can be set using the Customise-Working
Directory command.
 Any new switchgear that is created is
stored in the working directory.
 This allows the user to set up multiple
working directories that reflect their
requirements. 

Switchgear Files
WSOS creates multiple data files for
each item of switchgear.
 The most important is the configuration
file which has the name given to the
switchgear and a “.sos” extension.
 All the files for each switchgear item are
stored in a directory under the working
directory that is the name of the
switchgear. 
C:WSOS
ACR
ACR.sos

File - Copy
To pass a set of files to another user on
a different PC the whole directory for that
device should be copied.
 The File-Copy option is provided for this
purpose.
 The copy option allows the user to
specify if only the configuration file is to
be copied or if the history files are also to
be copied. 
File

Selecting Copy Source and Destination
 Configuration Files: These are the files which contain the configuration and protection
settings for the switchgear.
 Event Log: These are the event log files which have been uploaded from the
switchgear.
 History Files: These are the weekly and average files which have been uploaded
from the switchgear.

File – Save As
To make a configuration file for a new
device from an existing one use the
File-Save As command.
 This is the best way to make new
devices based on a standard
configuration. 
File

File Tips
In general, keep in mind the following points
regarding switchgear configuration files:
 A separate configuration file should be kept
for each item of switchgear WSOS
administers and this file should be maintained
to match the configuration of the switchgear.
 The File-New command creates a new file
with the default configuration.
 The File-Save As command creates a new
file based on an existing one (but does not
copy the historical files).
 The File-Copy command is used to write or
read a switchgear configuration to/from floppy
disc for use on another computer. This
command can copy not only the configuration
files but also the history files. 

Compare Switchgear Settings
The command Options-Compare
Switchgear Settings compares the
settings between the current switchgear
configuration file and the “On-Line”
switchgear.
 Any fields with conflicting values or
settings are displayed.
 This function is useful to check if the
switchgear and configuration files are in
alignment without risking overwriting
either the settings or the file. 
Options

History - Introduction
The Nu-lec intelligent switchgear controller
records historical information such as event
log and maximum demand records.
 This data can be extracted (up-loaded) from
the controller by WSOS.
There are two advantages in this:
 There is limited memory on the controller for
this data. This means that if it is not extracted
within certain time limits (eg. six months) then
it will be overwritten with more recent data
and lost. Up-loading to the computer’s disc
give practically unlimited memory for this
data.
 WSOS provides user friendly displays of this
data and can export the data in file formats
suitable for spreadsheets or other PC
programs for further analysis. 

History Files
There are five types of information that can
be up-loaded. They are :
 Event Log - Contains the date and time of
all significant events that occurs in the
switchgear.
 Weekly Data - Contains the total kWH, the
peak kW, time of this peak and the power
factor.
 Monthly Data - Contains the total kWH, the
peak kW, time of this peak and the power
factor.
 Average Data - Contains the kW, power
factor, A, B and C phase currents for the
averaging period.
 Configured Historical Data - Contains the
data configured by the engineer for the
configurable averaging period. 

History Upload
The history dialog box on the menu
bar provides access to the history
data.
The on-line
help details
how to
upload the
data.

History Upload Display
Current Records: This field shows the current number of
records that are stored on the disk for the Event log,
Weekly and Average historical data files. This field is
read only.
Stop Date: The date of
the earliest record to be
uploaded.
Delete Old Records:
This field shows
whether to delete all the
existing records that
have been up-loaded
before. If this field is not
set the up-load is added
to the existing upload.
Upload:This button when pressed
will start uploading records from
the switchgear. This button is only
displayed when On-Line. 

Uploading Event Log Records
While an upload is in progress, two additional lines are displayed:
The current date/time of the last record uploaded and the total number
of records uploaded.
The time taken so far
Stop Upload
This button
when pressed
will stop an
upload from a
switchgear.
This button is
only valid when
an upload is in
progress.
View: This button when pressed will display any
records uploaded from the switchgear. The information
is displayed in a table. This button is disabled when an
upload is in progress. 

Viewing Event Log Filter Results

Configuring the Event Log Filter
Maximum 10 lines
Not case sensitive
1 Day
1 Week
1 Month
1 Year

Configurable History
Configure History allows an
alternate History Configuration
setup

Transfer of Historical Files between Computers
It is likely that the data is to be collected from the switchgear on a different
PC from the one used to build up the record.
For example a technician may collect the data every four months using a
notebook computer for adding to the records on a protection engineers
desktop PC.
The correct sequence to carry this out is as follows:
 Engineer used File-Copy command to copy all files
to the memory stick that is given to technician.
 Technician visits the switchgear, connects directly
and goes “On-Line” .
 Technician up-loads historical files which appends
data to the files on the memory stick.
 Engineer uses File-Copy command to copy the
files back to his hard disc. 

Communications - Introduction
Before going “On-Line” a communications link
must be available between WSOS and the
required switchgear.
 Depending on the operating level purchased,
the following connection methods are
available.
 Direct
 Modem
 Radio 

Direct Connection
This method uses a direct RS232 link to
the switchgear.
 In this configuration, a serial cable
connects the computer serial port to the
serial port on the Operator Control Panel
on the switchgear.
 When “On-Line” WSOS polls the
switchgear every few seconds and
refreshes the data displayed on the
screen.
 The polling rate is set with the
Customise-Poll Period command. 

Modem Connection
WSOS also provides the capability of
controlling switchgear over a telephone
link.
 This allows switchgear with a telephone
connection (including cellular phone) to
be “Dialled-up” and controlled remotely.
 Note that the correct telephone number
for the switchgear must be entered on
the Customise - WSOS Communications
page. 
33114422

Modem Message Lengths
 Short Poll requests will be sent as individual
messages. This will slow down comms with
the CAPM because of the extra overhead.
 For Normal, poll requests are grouped
together and sent as one message. The read
file has one request per message. The write
file has one command per message.
 For Medium, multiple poll requests are
grouped together and sent as one message.
The read file has multiple requests per
message. The write file has multiple
commands per message.
 For Long, multiple poll requests are grouped
together and sent as one message. The read
file has multiple requests per message. The
write file has multiple commands per
message. The only difference is that the
messages are longer to reduce the total
number of messages sent.

Communications Setup for Modems
 Modem Initialisation:
 This is the command string sent to the
modem every time WSOS goes On-Line
to this device.
 Dial Command:
 This is the command string sent to the
modem to commence dialling. (Do not
include the phone number in this field).
 Hangup Command:
 The first command string is sent to get
the modems attention (go from on-line
state to command state). The second
command is used to hang up the modem.
 Response Time:
 This is the time WSOS will wait for a valid
connection between the CAPM modem
and WSOS's modem.

Modem Connection to Communications Port P9
Modems for remote communications are
normally connected to P8 via a cable which
runs to the radio tray.
 A modem can also be connected to P9 which
is normally used for direct WSOS
communications at 19200 baud.
 In this case P9 will have had its Mode and
Baud Rate reconfigured

Fixed and Automatic Baud Rate Selection
Fixed Baud Rate
Selection

19200 baud
WSOS
Automatic
Baud Rate
Selection
On-Line at
19200 baud
P9 = 19200 Baud
9600 baud
4800 baud
2400 baud
1200 baud
19200 baud
Automatic Baud Rate Selection

Radio Connection
WSOS allows control of switchgear over a
voice frequency (VF) radio link. The link can
be dedicated to WSOS or can be shared with
voice users.
 In a radio link like this all the devices being
controlled receive the messages sent by the
WSOS over the radio channel.
 WSOS addresses the required recloser or
Load Break Switch by sending the unique
serial number of the electronic controller.
 This is entered on the Customise - WSOS
Communications page before going “On-
Line”.
 For a radio link that also is used for voice,
set the poll period to one hour or longer
as required. 

Questions
 How many levels of passwords exist in WSOS?
 2 levels
 What is the name of the directory that WSOS searches to find switchgear
configuration files?
 The Working Directory
 Which File Command is used pass a set of switchgear files to another
user’s PC?
 File – Copy
 Which File Command is used to creat a file for a new switchgear based
on an existing configuration?
 File – Save As
 What effect does ticking ‘Delete Old Records’ have on an Event Log
Upload?
 Previously uploaded events are erased from the PC memory.
 How is addressing achieved with WSOS Radio protocol?
 The CAPM Serial number is used as the communications address.

07 wsos – user guide

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