9. 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.
10. 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.
11. 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
12. 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
13. 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.
14. 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
15. 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.
16. 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
17. 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.
18. 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.
19. 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.
20. 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.
21. 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.
30. 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.
31. 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
33. 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.
34. 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
35. 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.
36. 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.
37. 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
40. 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.
41. 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.
Editor's Notes
For example different directories might be set up for different geographical regions, or different line voltages or for Reclosers and Load Break Switches.
The switchgear stores historical information. This information can be retrieved (up-loaded) from the switchgear and stored by WSOS. The information is stored in a Paradox data base. When up-loading the information the newest record is received first, and progresses back until the oldest record is received.
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
This field shows the date when to stop uploading historical data from the switchgear. If this field is set to 1 January 1900, the up-load will read all the records from the switchgear or until a duplicate record is reached.
Set this value by clicking on the Stop Date box, enter the new value then press [Enter]. For the Event log a time is also required.
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.
Tip - If Cancel is pressed (or a stop date is reached) during an up-load, gaps can appear in the up-load sequence. The only way to retrieve the missing records is to select "Delete Old Records", and do a complete up-load.
WARNING - Selecting this field will delete all previous up-loaded records. Use with caution. A dialog box will be displayed confirming if all the records are to be deleted.
Tip - If you want to keep the existing up-loaded records. Create a new switchgear device and do the up-load using that device.
Upload...
This button when pressed will start uploading records from the switchgear. This button is only displayed when On-Line. See Go On-Line. While an up-load is in progress, two additional lines are displayed showing :
The current date/time of the last record up-loaded and the total number of records up-loaded.
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. See History Menu.
When the configurable history settings have been changed from the defaults the History dialogue box no longer displays Average Demand.
Configured History now appears as the fourth option.
When Configurable History has been configured the Average Demand screen no longer appears on the operator control panel.
A message appears on the Average Demand screen to indicate that customised data logging is a WSOS only feature.
Comms Channel - This is serial port to use. Choose from the list provided. This must have an item selected.
Protocol - This is protocol WSOS will use to communicate with the switchgear. See WSOS Communications Protocol.
Communications Address - This is the communications address of the switchgear. This is the CAPM or ECM serial number. This number must be unique. This item must have a number entered when a radio protocol is used or the R Series protocol is selected. The maximum number of digits is 6.
Phone Number - This is the phone number used to dial this switchgear. This item is only valid when a modem protocol is selected.
Modem Hangup Inactivity Period - This is the number of minutes that can elapse with out any keyboard activity before the system hangs up the phone line. This item is only valid when a modem protocol is selected.
Baud Rate - This is how fast WSOS will communicate with the switchgear device. The possible options are 57.6K, 19.2k, 9600, 2400, 1200 or 600 baud.
Automatic Baud Rate Selection (Software and Protocol Dependent) - When selected WSOS will cycle through all the available baud rates until a connection is established.
Fixed Baud Rate (Software and Protocol Dependent) - When selected WSOS will only use the selected baud rate to establish a connection.
8 Bits - This is the number of data bits that are sent per character. This can not be changed. It is shown here for information only.
No Parity - There are no parity bits included with the messages sent or received. This can not be changed. It is shown here for information only.
1 Stop Bit - One stop bit is sent for every character sent. This can not be changed. It is shown here for information only.
Advanced - Allows more communications settings to be changed. See Customise - WSOS Communications Advanced
Clarity - Allows the communications settings for Clarity to be altered. See Customise - WSOS / Clarity Communications.
Store And Forward - Allows the store and forward sequence to be configured for this switchgear device. See Customise - WSOS / Store And Forward.
Save As Default - Stores all the communications properties to a default data file for the selected communication channel. This default data can then be used when setting up a new switchgear to copy all the communications properties.
Use Default - This is used to set all the communications properties from a previously saved configuratio
Number Of Times Each Message Is Sent. This is the total number of times each message is sent before discarding the message. Usually an acknowledge message is received and the message is not sent again. If the acknowledge message is not received; the message is sent again. This cycle is repeated until the count is reached.
Auto Answer. This option is only valid for the 95 / NT modem version of WSOS. Select this option and WSOS will open the serial port and wait for a CAPM to dial in. If this is selected, add the correct auto answer command to the modem initialisation string. Normally this is "SØ=2". For example, the modem initialisation string could then become "AT&FSØ=2".
Post Connect Command. If text is entered here, it will be sent after the connect is received from the modem and before polling begins.
Send As Hex. If a Post Connect Command is entered, the Post Connect Command will be sent in hex-decimal format. The numbers are separated by spaces. For example, if the Post Connect Command is "FF 01", this represents decimal 255 and 1. No carriage return or line feed is automatically added; if these characters are required they must be added manually.
Delay Before Sending. If a Post Connect Command is entered, the Post "Delay Before Sending" is the time after the connect is received from the modem before sending the Post Connect Command. If this value is zero, there is no delay after the connect is received before sending the Post Connect Command.
WSOS can be configured to go On-line at a fixed baud rate or to cycle through all available baud rates to establish a connection.
The choice between Fixed and Automatic Baud Rate selection can be made by selecting WSOS Communication in the Customise menu.
If Fixed Baud Rate is chosen, a baud rate should be chosen from the Baud Rate drop down list. WSOS will only attempt to go On-line at this speed.
If P9 has been configured for a baud rate other than the one WSOS is using, WSOS will not go on line.
The alternative is to select Automatic Baud Rate selection for WSOS.
<number>
If WSOS is configured for Automatic Baud Rate selection, it will cycle through all available baud rates until it is successful in achieving a match with the baud rate P9 is running at and makes a connection.