11.2 The Wink command ....................................................61
11.3 Debug information ....................................................... 62
Index .................................................................................... 63
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Revision history
Ver-
Date Doc. No. Change Section Pages
sion
12.2009 CM110754en_02 Validity "2.2 and later"
V2.36 07.2006 CM110754en_01 "Revision history", and
"Reference to trade
names and product
names" added.
New note 2.1.1
Correction 3.2
New "View restriction"
feature added
Amendment and
addition to "Wiring test"
section
Minor changes to text
(nomenclature) with no
effect on content
V2.35 12.2005 CM110754en First edition
3.2.3
11.1
Whole
document
Reference to trade names and
product names
The following trade names and product names are registered
trademarks:
BACnet American National Standard (ANSI/ASHRAE 135-
1995)
L
ONWORKS®
LonTalk®
Echelon Corporation, San Jose, USA
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1 About this manual
1.1 Target readers
This user guide is intended for those responsible for the HVAC plant
in a building, and for other qualified staff, including service
engineers. It is assumed that the users of the manual will have all
the knowledge and skills needed to carry out the required tasks.
1.2 Contents
The manual starts with a description of the display and control panel
of the PXM20 (BACnet/LonTalk) and PXM20-E (BACnet/Ethernet/IP)
operator unit and presents the procedures for navigation and for
editing values, which are always the same. The second part of the
manual leads you step by step through the various activities involved
in commissioning and maintaining the plant.
As there may be significant differences between one plant and
another, and between the read and write access of one user and
another, it follows that it is not possible to provide a description
which is generally applicable to every individual case.
"Favorite" objects, for example, are special objects containing
important values, which can be accessed with a short-cut operation.
The question of exactly which objects and which values these are, is
determined in the engineering phase according to the individual
needs of the plant operator.
Important For this reason, the descriptions in this manual are intended as
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examples, designed to clarify the basic operating principles of the
PXM20 operator unit.
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1.3 Printing conventions
1.3.1 Text
Bold text is used for text exactly as it appears in the display, e.g.
START, ACKNOWLEDGE, Settings etc.
1.3.2 Keys
Keys are shown as follows:
Key names that appear on the key itself are shown in angular
brackets < > This convention is used for the <
– > and < + > keys. Example: Press the <?> key.
the <
The OK key and ESC key are referred to without brackets; their
name is marked on the unit housing. Example: Press the ESC key
or: Acknowledge withOK.
The "direct access" keys are referred to as such. Their function is
described neither on the keys themselves nor on the housing.
Example: Use the direct access key to go to the next value.
The same applies to the Page Up and Page Down keys.
Example: Go to the next dialog box using the Page Down key.
1.3.3 Notes
ImportantThe symbol shown here acts as a warning in cases where an action
STOP
Important Particular attention should be paid to text marked with this symbol.
may result in permanent loss of data.
A note qualifies an immediately preceding statement or statements.
Note
? > key (Info), and
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2 Display and control
elements
2.1 Housing
1
–
?
+
2
00262
ESCOK
PXM20
3
4
756
Figure 2-1 Housing
Key:
1. Display panel (Section 2.2)
2. Direct access keys (Section 2.1.3.1)
3. Alarm LED (Section 2.1.1)
4. Page Up & Page Down keys (Section 2.1.3.2)
5. OK key, <+> and <–> editing keys (Section 2.1.3.3)
6. ESC key (Section 2.1.3.4)
7. <?> key (Section 2.1.3.5)
2.1.1 Alarm LED
When an alarm is tripped in the system, the alarm LED lights up or
flashes, provided a user is logged in. As soon as all alarms have
been acknowledged, the LED stops flashing and remains on
continuously. For further information on alarm signals refer to
Section 7.
Exception
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When the view restriction option is On, the red Alarm LED lights up
in the event of an alarm even if you are not logged in.
The LED does not flash in response to an event.
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2.1.2 Audible signal
If the Buzzer is set to On under Settings (see Section 3), then any
alarm requiring acknowledgement and/or a reset will be additionally
accompanied by an audible signal. Alarms which do not require
acknowledgement or reset are not accompanied by an audible alarm
signal.
2.1.3 Keys
2.1.3.1 Direct access keys
An arrowhead symbol at the end of a line indicates that, for that line,
you can use the associated direct access key to carry out a number
of actions:
The direct access keys have a dual function.
Navigation:
Direct access to the view at the next level down.
Refer to Section 5 for detailed instructions on navigating in the
PXM20.
Editing a value
our user access rights determine whether you can edit values, or
Y
only read them. Refer to Section 6 for detailed instructions on
editing values in
2.1.3.2 Page Up and Page Down
If there are several pages in one display, use the Page Up and
Page Down keys to change to the next or previous page. You can
also use Page Up and Page Down in addition to the <+> and <–
>keys, to edit numerical values.
In pop-ups and dialog boxes, the symbols for Page Up and
Page Down are used to indicate that there is too much text to display
at once. Scroll up and down with these keys to display the whole
text.
the PXM20.
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2.1.3.3 The OK key and the edit keys <+> and <–>
As soon as you access a value with the direct access key, the value
concerned begins to flash, indicating that it can be edited with the
<+> and <–> keys. Confirm each change by pressing OK. In addition
to the <+> and <–>keys you can use Page Up and Page Down to
edit numerical values.
The step-by-step procedure for editing is described in Section 6
2.1.3.4 ESC key
By pressing the ESC key you can cancel any current process at any
time (e.g. the editing of a value), change over to the dialog box of the
next higher level or close a pop-up window. .
Holding down ESC for more than 2 seconds ("Long ESC") closes all
the active pop-up windows.
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2.1.3.5 The info key <?>
Pressing the <?> key once takes you into "Info" mode. A question
mark at the end of a line indicates that you can display information
associated with this line. To do this, press the associated direct
access key.
Figure 2-2
Figure 2-3 Example: "Setpoint for cooling"
Pressing the <?> key again displays a dialog box with general
information about the associated window.
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Title bar
Line of text
2.2 Display
All the elements of a plant are shown in the display, with values or
information which you can read or overwrite, depending on your user
access rights. Figure 2-4 shows the layout of the display. The next
section describes
The keys used for navigation and editing are outside the display
panel, and set into the housing itself. These keys are also described
below in more detail.
the areas of the display and the symbols used.
Operator field
Figure 2-4 Layout of the display
2.2.1 Title bar
The current level within the tree structure is shown at the top left of
the display panel; this is marked with an arrow . The current page
and the total number of pages is shown on the right. The title bar is
separated from the rest of the display with a horizontal line.
The example above shows page 1 of 2 of the dialog box for the Air handling unit.
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Text lines
Graphics
2.2.2 Operator field
Below the title bar is the operator field, which may contain either
several lines of alphanumerical text, or a graph.
A maximum of six lines of text can be displayed in the operator field.
If there are more than this, the remaining lines appear on the next
page.
An ellipsis (…) indicates that the text is too long to fit on the line.
To see the rest of the information, use the <?> key followed by the
direct access key.
Each line comprises the following elements from left to right:
Symbol
Values, alarms, events, entries, functions, hierarchical elements
etc.
An arrowhead symbol, for values which you can edit.
Trends and heating curves are displayed in graph form.
Figure 2-5 Trends graph
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Buttons
The button-field contains other functions or dialog boxes to which
you can gain access by pressing the associated direct access key.
Buttons are identified by upper case text in a box.
Pop-up
Dialog box
A "pop-up" is a dialog box used to display an alarm or an event. The
ALARM VIEWER button provides direct access to the list of active
alarms.
Figure 2-6 Pop-up
After a given action, a dialog box will appear, with a prompt which
must be acknowledged before the required action is carried out or
cancelled. Dialog boxes containing the relevant information are also
displayed when you press the <?> key.
Figure 2-7 Dialog box with confirmation prompt
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2.2.3 Symbols
The following is a list of all the symbols used in the display, and their
meanings. The same symbol may represent different entries, or
have a different meaning, depending on the context.
Symbols Navigation Description
Symbols Description
Arrowhead. Values on this line can be accessed with the direct
access key directly to the right of the line.
This line contains additional information about the highlighted object.
The information appears when you press the Info key <?>. Refer
also to Section 2.1.3.5.
Page(s)
Page n of total n pages.
Scroll up to display more information
Scroll down to display more information
Site
Hierarchical element
Log-out
Favorites. These are defined in the engineering phase and contain
frequently interrogated elements with simple operator access.
Group object (room automation)
Command control
Power control
Input
Output
Operating parameters
Value object
Interface variable
Calendar / Calendar entry
Trend
1. Time schedules
2. Set date and time
User-defined system settings
Alarming & functions
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Symbols Description
Daylight savings
Global objects. Contain data which is globally available (within a
given site, across automation stations)
Edit user
Add new users
Delete user
Change password
Device (Primary Server)
Device (Backup Server)
Wiring test (service engineers only)
Wink
Debug information (service engineers only)
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Symbols
Alarms & Events
Symbols
Status
Description
1. Alarm overview
2. Alarm and event history:
Alarm for "Off Normal" or fault state; flashing indicates
unacknowledged alarm
Acknowledged alarm state
Alarm for "Normal" state; flashing indicates unacknowledged state.
Normal state not reset
System event
Acknowledged alarm or event in Alarm & event history
Reset alarm or event in Alarm & event history
Description
Work in progress
Override (manually overwritten value)
Life safety
Plant security
Fault
Override active
Out of service
Delay
Switch
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Notes
3 Settings
1. You can only carry out the settings described below if the
appropriate rights have been assigned to you. These rights are
allocated either in the engineering phase, or later by the system
administrator.
2. To be able to carry out settings and modifications, you must be
in a site (see Section 4).
Figure 3-1 Site overview
Open Alarming & functions for the current site.
This is where you will find all the entries which you use to modify
settings in the system using your PXM20 operator unit.
Figure 3-2 Alarming & functions
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3.1 System
3.1.1 Set time & date (system time)
You can only make time settings if a primary server has been
Note
defined in the network.
The system time is always applicable to one site. To change the
system time, proceed as follows:
1. Open Alarming & functions > Set date & time for the current
site.
2. Set the required time using the direct access key adjacent to the
numerical time display.
3. Save the new settings.
3.1.2 Daylight savings
This option is used to define the requirements for an automatic
daylight savings time change.
1. Open Alarming & functions for the current site.
2. Select Set daylight savings
You can start by accepting or rejecting the current automatic
summer time change.
3. You then define on what date and at what time summer time is to
begin and end. The basic settings are the last Sunday in March
at 0200 hours for the start of summer time and the last Sunday in
October at 0300 hours for the end of summer time.
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3.2 PXM20 operator unit
Note
The procedure for defining or modifying settings in the PXM20 is
always the same. It is therefore described here once only. The same
procedure applies to Sections 3.2.1… 3.2.17.
1. Open Alarming & functions > Settings for the current site.
2. Select the required entry; the value will start flashing.
3. Configure the value as required.
4. Always save the new settings and restart the PXM20 operator
unit.
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Note
3.2.1 Language
Select the language here. The basic setting is English.
3.2.2 IP settings (PXM20-E only)
These settings must be carried out only by (or by arrangement with)
your system administrator or network administrator.
Figure 3-3 Settings Figure 3-4 IP settings
Set your network parameters here.
DHCP
Note
UDP port
Foreign device
If the dynamic IP configuration in your network is set up via DHCP
(Dynamic Host Configuration Protocol), then the settings for the IP
address, subnet mask and default gateway are provided by the
DHCP server. These settings cannot be modified.
If the IP address, subnet mask and default gateway settings are
entered manually, they are not checked for consistency.
BACnet communicates via UDP (User Datagram Protocol) and IP
(Internet Protocol). The default UDP port for BACnet is BAC0. A port
other than the default UDP port can be set by means of the edit
string.
Figure 3-5 Setting the UDP port
The BBMD (BACnet Broadcast Management Device) function is
required for BACnet communications between the different IP
segments (separated by IP routers). The PXM20-E from another IP
segment can register itself with BBMD as a foreign device. This
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function can be enabled here. The same dialog box is also used to
enter the IP address of the device with BBMD functionality.
Figure 3-6 Foreign device enabled
3.2.3 View restriction
PXM20/PXM20-E units are delivered with the default setting View
restriction = Off (Figure 3-7). This means that all sites and devices
are visible. Use this menu to configure the site and devices that y
need to see.
1. Log into the site for which you want to configure a restricted view.
If the setting is View restriction = On, you will be able to see
this site only
2. Set View restriction =On (Figure 3-8)
ou
Figure 3-7 Default setting a the new
operator unit: View restriction = Off
Figure 3-8 View restriction = On
3. The devices associated for that site are displayed. They are all
set to Hidden.
4. Select the devices you want to be able see for your work, and set
them to Visible (Figure 3-9).
Note
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It is recommended that the Prima
ry Device also be set to Visible.
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Figure 3-9 One device visible
5. Save the new settings and restart the PXM20 operator unit.
After a restart, only the devices set to Visible can be seen.
When you are logged in, only alarms from the visible devices are
displayed.
With View restriction = On, the red Alarm LED lights up in the
event of an alarm even if you are not logged in.
Disabling the
view restriction
Set the view restriction to Off under Settings. When you save this
setting and restart the operator unit, all devices are visible again.
The user-specific view-restriction settings remain in memory. This
means that you only need to enable or disable the view restriction.
Always save new and modified settings and restart the PXM20
operator unit to make the new settings take effect.
3.2.4 Date and time format
Select either the American or the European date and time format.
3.2.5 Contrast
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The display contrast can be set here:
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3.2.6 Display long texts
Use this option to define whether or not a long text item should be
displayed on two lines.
3.2.7 Buzzer
Use this option to specify whether or not alarms are to be indicated
with an audible signal. This is only possible if a user is logged in, and
provided that the alarms are displayed in pop-up windows. Audible
signals are only available for alarms which require acknowledgement
or acknowledgement and rest.
3.2.8 Alarm pop-up
Use this option to define whether or not alarms should be displayed
in pop-up windows.
3.2.9 Event Pop-up
Use this option to define whether or not events should be displayed
in pop-up windows.
3.2.10 Alarm text mode
5. This allows you to specify how alarms and events are to be
displayed in the Alarm viewer and Alarm & event history.
6. If you select Description, a generic description of the object will
be displayed.
3.2.11 Relogin
This setting enables you to specify that a user must log in again after
the display saver has been switched on.
3.2.12 Display saver on
This option lets you define the time period (from 5 to 60 minutes in 5minute increments) after which the display saver is to switch on.
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Notes
3.2.13 Main value
This setting lets you specify that when operating the plant, the main
value should appear at the end of the line for the object concerned.
3.2.14 Welcome window
Here you can define whether a "Welcome" window is to appear
when a user logs in.
3.2.15 Third-party site
Use this option to specify whether or not third-party devices are to be
operated with the PXM20.
In third-party devices, the following BACnet objects can be
displayed:
Only a subset of the standard properties, as in the BACnet
standard, is displayed.
In the context of PXM20 and PXM20-E, the term "third-party" or
"devices from third-party manufacturers" is used to refer to "non-PX
devices".
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3.2.16 Domain ID (PXM20 only)
Important This setting should be modified only by fully trained staff.
Set the Domain ID for the PXM20 here.
Figure 3-10 Domain ID
3.2.17 Network scope
This setting is not visible to all users.
Note
BACnet networks are divided by BACnet routers, e.g. PXG80-N.
Communication within a BACnet network is local, while
communication across all BACnet networks (connected by BACnet
routers) is global.
Use this option to specify whether the BACnet communication is to
be local or global, i.e. whether PXM20(-E) should be able to
communicate only with BACnet devices connected to the same
network, or also with BACnet devices connected to another BACnet
network.
Important This setting should be modified only by fully trained staff.
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4 Login and log-out
As soon as you connect the PXM20 operator unit to an automation
station or to a connection point in the L
window will appear in the display panel.
Figure 4-1 "Start" window
Press the direct access key adjacent to START.
4.1 Connecting to the network
A connection is established with the network. The PXM20 starts by
looking for an automation station defined as the primary server.
The login procedure is in two steps:
1. Select a site
ONWORKS network, the "Start"
If no sites are listed, this means that no automation station in the
network has been defined as the primary server.
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Note
Logging in to
another site
2. Select RESCAN NETWORK to look for all the devices on the
network. In this case, access to the system is via an automation
station defined as the back-up server.
3. Commissioning and service engineers can carry out a wiring test
with the WIRING TEST option (see Section 11)
4.2 Login
1. Log in to the selected site with your user name and password.
2. You will then be asked to enter your password.
3. Select the required letters, numbers or characters and use the
<+> key to enter them in the password field. These inputs can be
deleted using the <–> key.
Note that wildcard characters (*) are used to represent the
password in the password field. You can cancel password
entry at any time by pressing ESC.
4. Press OK to confirm the password entered.
Before you can log in to a new site, you must first log out from the
current site (see the next section).
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Note
Logging out w
ESC
ith
4.3 Logout
If you disconnect the PXM20 from the network without first logging
out, this can temporarily impair the performance of the plant (e.g. by
delaying the transfer of alarms). You should therefore always log off
properly as described below.
By repeatedly pressing ESC you can navigate to the top level. If you
now press ESC again, a dialog box will be displayed in which you
will be asked if you want to log off. Answer with Yes or No.
Alternatively, instead of No, you can press ESC.
Logging off via
Logout
1. Within the site, go to Alarming & functions.
2. Select Logout.
3. Confirm that you really do want to log out.
4. The site overview appears again (Figure 3-1).
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Tree structure
5 Navigation
The navigation structure for the PXM20 operator unit is displayed as
a tree structure.
Down one level
Up one level
Closing windows
Moving from page
to page
The arrowhead symbol at the end of a line indicates that you can
move to a dialog box at the next level down, by pressing the
associated direct access key.
Press ESC to leave the current dialog box and move to a dialog box
at the next higher level.
Press ESC to close pop-up windows and dialog boxes.
If there are several pages in one display, use the Page Up and Page
Down keys to change to the next or previous page. The total number
of pages is shown in the top right corner of the display:
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6 Reading and editing
values
In order to edit values, you must have Write access rights. If you
only have Read access, you can view a value, but not modify it.
In the example below, the values which you can edit are indicated as
follows:
Figure 6-1 Display and direct access keys
Key:
Arrowhead The arrowhead symbol at the end of a line indicates
Direct access key To edit the value Setpoint for cooling, press the
that you have the necessary Write access rights to edit
this value. You can use the direct access key to switch
to Edit mode (press briefly) or to navigate to the next
level down (sustained pressure). If there is no
arrowhead symbol adjacent to any of the other values,
this means that you have no access to these values.
direct access key adjacent to the line concerned.
As the procedure described below is always the same, it is only
Note
described once, in order to keep this manual as easy to read as
possible. If you are required to edit a value in any subsequent
routines, the procedure referred to is the one described here.
To keep the manual as clear as possible, the instruction "Press the
direct access key" is not repeated.
Example: "Select the month and the year".
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When editing always proceed as follows:
1. Press the direct access key adjacent to the required line. If you
press the key briefly, the value will be displayed in inverse video
ready for editing (see below). Sustained pressure on the direct
access key allows you to navigate to the next level down (if there
is one).
Edit the required value with the <+>-, <–> keys. Numerical values
can also be edited using the Page Up and Page Down keys.
2. Acknowledge the changes you have made by pressing OK.
3. You can also acknowledge an input by pressing the direct access
key itself.
4. If several values are displayed on one line, press the direct
access key repeatedly, until no further values are displayed in
inverse video.
6.1 Example: Setting a setpoint
Navigate to the value that you want to edit. Set the required value.
Figure 6-2 Setting a manual setpoint
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6.2 Example: Editing the heating
curve
The heating curve is used to determine the flow temperature setpoint
for weather-compensated flow temperature control.
Two display
formats
List view of heating
curve
There are two ways of setting the heating curve values using the
PXM20 operator unit. Either the main parameters can be displayed
in graph form, or all the parameters, inputs and outputs can be
displayed in list form. .
Figure 6-3 Graphic view of heating curve
Select LIST VIEW for access to a list of all parameters, inputs and
outputs.
Figure 6-4 Heating curve: list view, page 1
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Forced control
symbol
Figure 6-5 Heating curve: list view, page 2
Select GRAPHIC VIEW to return to the graph.
6.3 Forced control
"Forced control" applies to the process of setting inputs and outputs
manually to a given value.
The inputs and outputs are edited in the normal way. As soon as you
select the required value you will be prompted in a dialog box to
confirm that you want to force this value.
Figure 6-6 Prompt for acknowledgement of forced control
You can use the direct access key to cancel the forced control in the
dialog box again.
The forced control symbol is displayed after the input or output has
been forced.
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Signals
7 Alarms
7.1 Occurrence of alarms and
events
Attention is drawn to the presence of alarms and events by use of
pop-up windows (Figure 7-1). In the case of alarms requiring
acknowledgem
the LED display starts flashing. The use of pop-up windows and
audible signals for this purpose is optional and can be enabled in
Settings (Section 3.2.8).
If a common alarm was set up in the engineering phase,
able to use the pop-up concerned to acknowledge and/or reset all
the alarms “below” that hierarchical level.
ent and/or reset, there is also an audible signal and
you will be
Information in popup
The main information about the current event is displayed in a popup window:
Figure 7-1 Alarm pop-up with unacknowledged alarm
The display shows a time stamp, the object name, the notification
text and the alarm priority. In the case of alarm messages, you can
display the Alarm viewer directly (see Section 7.2.1).
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Symbols in the alarm pop-up
Unacknowledged alarm
Alarm state acknowledged
Normal state, existing alarm unacknowledged
Normal state, unreset
(only used for Extended alarms. In such cases, reset the alarm.)
Deleting a pop-up
Canceling
audible signal
System event
Press ESC to delete a pop-up window without affecting the alarm or
event.
An audible signal can also be canceled by deleting the associated
pop-up window with ESC.
7.2 Alarm acknowledgement
All alarms still requiring acknowledgement are listed in the Alarm
viewer.
7.2.1 Displaying the alarm viewer
You can go to the Alarm viewer either from the
Alarming & functions window, or display it directly from the alarm
pop-up.
Figure 7-2 Alarm viewer
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All recently received alarms are listed in this dialog box.
Each line consists of an alarm symbol, the object name or
notification text, and the date and time.
Tracking the
alarm state
The Alarm viewer tracks the state of an alarm as follows: If the
alarm state changes (e.g. an alarm is acknowledged) the associated
entry also changes.
Note that for each object, only the current alarm, i.e. the last alarm
Note
received, is displayed.
When a fault has been cleared and acknowledged the relevant entry
disappears from the list.
7.2.2 Selecting an event or alarm
5. Select the alarm which you wish to acknowledge. The Alarm
message dialog box will appear.
6. You can now select either ACKNOWLEDGE or DETAILS.
The procedure for events is basically the same as for alarms.
Unlike alarms, however, you do not need to acknowledge events.
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7.2.3 Alarm acknowledgement / Alarm &
Event details
Select ACNOWLEDGE to acknowledge the alarm. The Alarm
viewer dialog box will re-appear (Figure 7-2).
By selecting DETAILS you can switch to a dialog box which provides
more information about the object responsible for triggering the
alarm or event, and which displays the priority of the alarm message.
Figure 7-3 Alarm details
Figure 7-3 Event details
OBJECT PROPERTIES lets you navigate directly to the alarm
source. Press ESC to return to the Alarm viewer.
Note
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Your user access rights will determine whether or not you have
access to Object properties.
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Extended alarm
After acknowledgement, Extended alarms will also need to be reset
with the RESET option. You cannot do this until the object has
returned to normal.
Figure 7-4 Example of Extended alarm
After the reset, you will be returned to the Alarm viewer.
7.3 Alarm & event history
Go to the Alarming & functions dialog box to display the Alarm &
event history.
Figure 7-5 Alarm & Event history
The Alarm & event history dialog box displays not only the current
alarm, but all alarms which have occurred in conjunction with the
selected object.
As with the Alarm viewer, a line consists of a symbol, the object
name and the date and time.
The following information is displayed for a maximum of 30 entries:
All the most recently received alarms
The most recent alarm acknowledgements
The most recent events
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Note that it is not possible to acknowledge or reset alarms in the
Note
Alarm & event history.
Unlike the Alarm viewer, the Alarm & event history only logs
incoming alarms, but does not update the entries with any changes.
As with Alarm viewer, you can invoke an individual alarm or event
here, and view the details.
Symbols in the Alarm & event history
Unacknowledged alarm
Normal state, existing alarm unacknowledged
System event
Acknowledged
Reset
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8 Access rights
8.1 Introduction
There are seven user levels in the system. In the engineering
process, each user group is defined with the associated Read and
Write access rights (user level). Individual users are then assigned
to one of these user groups.
8.2 Password
When the plant is handed over, you will be told which users have
been set up, and notified of the associated passwords. Users can
then change their own passwords to suit their own preferences. The
procedure is as described in Section 8.5.
8.3 Adding new users
Members of a group are authorized to add new users to groups at a
lower hierarchical level.
1 Within the current site, go to Alarming & functions and select
User definition
2 Select Add new user
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3 You will be prompted in the next dialog box to enter the user
name:
4 Select the required characters and use the <+> key to enter them
in the field. Use the <–> key, if required, to delete characters.
5 Acknowledge the user name with OK.
6 You will then be prompted to enter the password: Please enter
the PASSWORD
Enter the required password and confirm with OK
A list of all the information describing the newly defined user will now
appear. You now have the option of modifying or adding to the
information or settings:
7 User group
Select the required user group
8 User visa
Select initials for the user you have defined
9 Answer the prompt to save the new user entry:
SAVE USER
The display will revert to the User definition dialog box
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8.4 Remove user
To remove a user, proceed as follows:
Note
You can only remove users at a lower level in the hierarchy.
1 In the current site, select Alarming & functions >
User definition.
2 Select Remove user. The next dialog box displays a list of all the
users which your access rights entitle you to delete.
3 Select the user to be removed.
4 Confirm your instructions in the next pop-up window.
8.5 Change password
o change your own password, proceed as follows:
1 In the current site, select Alarming & functions >
User definition.
2 Select Change password.
The following prompt will then appear:
3 Enter OLD password:
Enter your old password and confirm with OK.
The following prompt will then appear:
4 Enter NEW password:
Enter your new password and confirm with OK.
5 The change of password is confirmed in a pop-up window.
8.6 Edit user
Proceed as follows to change the data for a given user:
1 In the current site, select Alarming & functions >
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User definition.
2 Select Edit user.
The next dialog box displays a list of all the users which your
access rights entitle you to modify or delete.
3 Select the user, for which you want to edit the data.
4 Make the required changes and confirm them by selecting SAVE
USER.
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9 Setting time schedules
The Scheduler consists of a 7-day schedule and an exception
schedule. You can use the scheduler to program the following:
Time-dependent on/off switch control
and/or
Time-dependent setpoint adjustment
In the 7-day schedule, you can define daily profiles to be repeated
week after week. In the exception schedule, you define days which
deviate from those defined in the 7-day schedule.
The names and locations of these time schedules are defined on a
plant-specific basis. The following illustrations are examples only.
9.1 Scheduler
It is possible to define a particular profile for each day of the week
within the 7-day schedule .
1. Navigate to the required scheduler.
2. Use the direct access key to select the required day of the
week.
The selected day is marked with a rectangle (Monday in the example
above). A graphics-based display of the selected day appears on the
second line. You can select the individual switching points with the
associated direct access key. The next line displays the values for
the selected switching point.
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9.1.1 Editing the switching points
The exact time and the state which comprise the entry are shown on
the next line, and can be selected for editing. Confirm your entry by
pressing OK.
1.
To change the schedule for this day, select CHANGE PROGRAM.
2.
Move from one entry to the next within the 24-hour
schedule. The selected entry is marked by a small black
arrow above the 24-hour schedule.
9.1.1.1 Editing an existing entry
Edit existing entries in the normal way, using the associated direct
access keys (the procedure is described in Section 6).
9.1.1.2 Copy 24-hour profile
To copy a 24-hour profile to other days, navigate to the day which is
to be used as a template.
Then go to the line Day copy to and select the days to which you
want to copy the profile; acknowledge with OK for each day.
9.1.1.3 New entry
To add an entry select NEW ENTRY and edit the new entry.
9.1.1.4 Delete entry
To delete an entry, first select the entry to be deleted, and then
select DELETE ENTRY.
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9.2 Exception schedule
The exception schedule contains two kinds of exception:
Exceptions which are stored locally in the time schedule and apply
only to that specific time schedule; these are identifiable by the
date information.
Exceptions which are stored in a calendar object and used by
various time schedules. These are recognizable by their names,
e.g. holidays without date information.
Identification of exceptions in lists:
Symbol for an exception with a 24-hour profile and a date period
There are two ways of invoking exceptions in a list:
Via an individual day in the Exceptions overview (see Figure
9-1)
Via the EXCEPTI
ONS button(see Figure 9-1).
9.2.1 Listing the exceptions for a given day
In the 7-day schedule, navigate to the exceptions overview via
EXCEPTIONS OVERVIEW.
Figure 9-1 Exceptions overview
Select the month and the year from the top line. All the days of the
selected month will then be displayed. Days on which exceptions are
programmed appear on a black background.
Select the required day and confirm with OK. A list of all the
exceptions for the selected day is displayed. You can edit this
display directly.
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Wildcards
Figure 9-2 Exceptions for a specific day
9.2.2 Listing all the exceptions
Use the EXCEPTIONS button in the Exceptions overview (Figure
9-1 ) to display a list of all the exceptions defined in the selected time
schedule. You can access these with the associated direct access
keys.
Figure 9-3 Schedule exception list
You can use wildcards (*) to enter the date period. Note the
wildcards used in the illustration above.
9.2.3 Create new local exception
NEW LOCAL EXCEPTION allows you to create a standard
exception with the current date and add it to the Schedule exception
list (Figure 9-3).
exception to your own particular needs.
The next section describes how to adapt this
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9.2.4 Editing a local exception
Select a date entry from the Schedule exception list (Figure 9-3). A
dialog box will appear (Figure 9-4), from which you can select the
editing option y
Figure 9-4 Schedule editing options
Select CHANGE DATE to display the following dialog box:
ou require.
Figure 9-5 Changing the date of an exception
Enter the required information and return to the editing functions via
SAVE & EXIT (Figure 9-5).
Select EDIT PROF
exception. In this dialog box, you can select whether you want to
ILE for access to the 24-hour profile of an
modify the program or to delete all entries.
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Figure 9-6 Changing the profile of an exception
Select CHANGE PROGRAM to invoke the editing mode.
Important! The priority should only be modified by fully qualified personnel.
STOP
Select DELETE ALL ENTRIES. Acknowledge the data protection
prompt. All entries will be deleted from the system.
This button is used to delete the selected exception.
Use this button to revert to the Schedule exception list, Figure
9-3).
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9.2.5 Edit Calendar object
Select a calendar object from the Schedule exception list.
Figure 9-7 Editing a calendar object
You can edit the date and profile as described in Section 9.2.4.
Exceptions in a global calendar ob
Note
scheduler is on the Primary Server. If this is not the case, an error
message is displayed.
When editing calendar entries, extreme caution is advised, as this
STOP
can sometimes affect the exception programs of other time
schedules.
ject can be edited onl
y if the time
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10 Trend function and
settings
The PXM20 operator unit provides the user with five channels for
trend logging, enabling five data points to be logged.
The same dialog box is used for basic trend settings in all types of
trend view (refer to Section 10.3). This dialog box is invoked when
you set up a ne
have already
Alarming & functions / Online Trend (see Section 10.2).
There ar
Graphic view (Section 10.3.2)
Grap
List view
10.1 Setting up a new trend
Navigate to the data point for which you want to log a trend. Display
the information dialog box.
w data point (see Section 10.1). For channels which
been set up, it can also be invoked by selecting
e three separate approaches to the trend view:
hic view online (Section 10.3.3)
(Section 10.3.4)
Figure 10-1 Information
Use the LOG DATA POINT button to set up the required trend. The
dialog box with the trend settings opens (Figure 10-3). Section 10.3
describes how to
view required.<0}
The data point is automatically assigned to the first free channel.
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set the trend parameters and define the type of
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10.2 Displaying an existing trend
Select the required channel via Alarming & functions > Online
trend. If the adjacent symbol flashes, this indicates that logging is in
progress.
Figure 10-2 Overview of active trend logging and spare channels.
Select the required channel. The main dialog box for the selected
trend channel will open (Figure 10-3). From here, you can view
graphs and edit paramete
The next section describes how to set the trend parameters and
define the type of view required.
This button allows you to stop all trend logging and delete all
configured trend charts.
rs.
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10.3 Main trend dialog box
The main trend dialog box gives you access to the Trend
configuration dialog box and to the various trend data views.
Figure 10-3 Setting trend parameters and defining the view
RELEASE CHANNEL stops the trend logging and deletes the trend
configuration.
10.3.1 Trend configuration
From the main trend dialog box (Figure 10-3) select Trend
configuration . You can now modify the parameters for the required
trend logging.
Figure 10-4 Configuration, pages 1 and 2
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The individual parameters have the following meanings:
On / Off
Here, you should define the length of time over which the trend
values are to be logged.
Enter the sampling rate (logging interval) in days, hours, minutes
and seconds.
A logging interval of 0 results in COV logging (Change of Value).
Define here what should happen to the trend logging when the
memory limits are reached.
If you select No, the first values will be overwritten by new values.
With Yes, trend logging will stop.
Number of values that can be stored
Delete all logged values
Number of sampled values in the current trend log
SAVE TREND SETTINGS lets you save your inputs, after which the
PXM20 will start logging these values. The display reverts to the
main dialog box.
The flashing symbol at the beginning of the line in the Online Trend
Note
dialog box (Figure 10-2) indicates that trend logging is actually in
progress. If L
og enable is set to On, b
despite this, you should check your settings (start time, stop time and
referenced data point).
ut the symbol is not flashing
You can display the trend data in three different views, as described
in the next section.
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10.3.2 Graphic view
The Graphic view displays a graph of all the values in the PXM20
for the logged data point.
The graph displayed with this option reflects past events only. To
Note
view the values in real time, select Graphic view online
(Section 10.3.3).
Before displaying the sampled values in a graph, you can adapt the
display in Graphic view to your requirements, by modifying the
following parameters in the Trend configuration dialog box (Figure
10-3).
Figure 10-5 Parameters for the Graphic view
The two parameters Graphic start time and Graphic stop time can
be used to reduce the display window to a time-window of particular
interest to you. As default values for the Graphic start time and
Graphic stop time, enter the start and end of logging.
Use Compare with channel to compare the selected trend with
another trend you have set up (see Figure 10-9).
Select GRA
PHIC to confirm your settings and display the trend.
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Setting guides
Figure 10-6 Graphic view with a single channel
Figure 10-7 Graphic view with two channels
A guide line can be set and moved by use of the <+> and <-> keys.
The data display is also refreshed.
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10.3.3 Graphic view online
The Graphic view online displays the required value dynamically,
i.e. in real time.
To view all the values so far stored in the PXM20, select Graphic
Note
view (Section 10.3.2).
Here, you can define the duration ("Record time"), and the high and
low range limits for the value.
Figure 10-8 Settings in the Graphic view.
Under Record time you can define the period of time for which you
want to display this dynamic trend.
Low limit and High limit represent the upper and lower limits for the
value range to be displayed.
The trend is displayed soon as you confirm your entries via
GRAPHIC.
You can reset the graphic display by pressing OK.
Figure 10-9 Online trend
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Setting guides
A guide line can be set and moved by use of the <+> and <-> keys.
The value corresponding to the guide line is also displayed.
10.3.4 List view
Instead of displaying the logged values in graph form, you can view
them in list form.
Figure 10-10 Trend values in the list view
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11 Service support
11.1 (Wiring test)
Note
Prerequisite
The wiring test must be carried out only by service and
commissioning engineers when commissioning the system.
The automation station which is the subject of the test must not be
integrated into a site and must not be loaded with application
software. Before the wiring test, a master reset of the automation
station is recommended.
Procedure
A No site exists yet, i.e. no program has yet been loaded by an
automation control station.
– Select WIRING TEST
B A site already exists and you want to extend the network by
one automation station:
– Log into the required site.
– Go to Alarming & functions and choose Wiring test.
– Follow the instructions in the display, and press the service
pin of the required automation station.
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Position of
service pin
00242
LONWORKS
Service pin
Figure 11-1 Position of service pin in a PX compact automation
station
Service pin
Figure 11-2 Position of service pin in a PX compact automation
station on IP
00256
Service pin for
LonWorks devices
COM2COM1
RUN STA ERR
TX SERVICE TX SERVICE
Servicepin for
IP devices
Figure 11-3 Position of the service pin in a PX modular automation
station
The wiring test is carried out.
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List of all inputs
y
and outputs
Note on analog inputs
Note on exiting from
the wiring test
Notes
on PXM20-E
For your information, the PXM20 operator unit displays a list of all
inputs and outputs of the tested automation and control stations,
grouped according to signal type (analog, binary or multi-state, see
Figure 11-4).
Module No.
Signal:
AI = Analog input
AO = Analog output
BI = Binar
input etc.
Figure 11-4 Analog signals list
From here you can select the various inputs and outputs and display
further information.
With the PX automation stations, the analog inputs in the application
can be configured. During the wiring test (=No application loaded) it
is always assumed that the analog input signal is a type LG Ni100
signal.
Navigate to the top level (the openinig menu of the wiring test) by
repeatedly pressing ESC, otherwise you will have to perform a
master reset of the PX automation station before you can carry out a
new wiring test.
The PXM20-E operator unit must be able to communicate with the
automation station via IP, and must not be configured for DHCP.
The Foreign Device option must be disabled (this is also the default
value). It is recommended that you operate the automation station to
be tested and the PXM20-E operator unit in the same range as the
default IP addresses and subnet masks. During the wiring test, the
PXM20-E operator unit assigns the automation station a temporary
IP address which is one digit higher than its own IP address:
Example: IP address of PXM20-E: 172.16.87.14
IP address of automation station: 172.16.87.15.
The use of this IP address is not checked.
If the wiring test is carried out on a different PXM20-E operator unit,
a master reset of the automation is required before you start.
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11.2 The Wink command
In certain cases where third-party integration is involved, the PXM20
may need to be specifically identified for commissioning purposes.
Although it exists in the PXM20, this command is not needed within
Note
the DESIGO system.
The identification process is carried out with the Wink command.
Figure 11-5 The “Wink” command
To send the Wink command, select Send service pin message.
This immediately triggers the Wink signal.
Figure 11-6
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11.3 Debug information
These settings are not visible to all users.
Note
Debug information is helpful for troubleshooting, and is intended
exclusively for development engineers.
The latest entries are always displayed at the end of the list.
The time entry is only valid once a PXC automation station has been
Note
identified.
Select Debug information from the Alarming & functions dialog
box.
Figure 11-7 Debug information
This dialog box contains the following information:
Error category
Error category (letter at the beginning of the line):
C: Information E Error
F: Fatal error B: Reboot
Message text
Address in
the program
Time of
occurrence
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The following is an example of message text:
PXM20 application started
This address indicates where the error occurred. This information
can be useful for troubleshooting.
Example:
Addr: 0x8C6434
The time at which the error occurred. The format is as follows:
Day, month, minute, second and millisecond since 01.01.1970
00:00.