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Siemens DESIGO PXM20, User Manual

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Siemens 

PXM20 / PXM20-E operator unit 

CM110754en_02 

Building Technologies 

Reading and editing values 

17 Dec 2009 

6.2 

Example: Editing the heating 
curve 

 

The heating curve is used to determine the flow temperature setpoint 
for weather-compensated flow temperature control.   

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 

Two display 
formats 

List view of heating 
curve 

 

Summary of Contents for DESIGO PXM20

Page 1: ...s DESIGO PX PXM20 PXM20 E operator unit User s guide Version 2 2 and later CM110754en_02 17 Dec 2009 Building Technologies ...

Page 2: ...ator field 12 2 2 3 Symbols 14 3 Settings 17 3 1 System 18 3 1 1 Set time date system time 18 3 1 2 Daylight savings 18 3 2 PXM20 operator unit 19 3 2 1 Language 20 3 2 2 IP settings PXM20 E only 20 3 2 3 View restriction 21 3 2 4 Date and time format 22 3 2 5 Contrast 22 3 2 6 Display long texts 23 3 2 7 Buzzer 23 3 2 8 Alarm pop up 23 3 2 9 Event Pop up 23 3 2 10 Alarm text mode 23 3 2 11 Relogi...

Page 3: ...sword 40 8 3 Adding new users 40 8 4 Remove user 42 8 5 Change password 42 8 6 Edit user 42 9 Setting time schedules 43 9 1 Scheduler 43 9 1 1 Editing the switching points 44 9 2 Exception schedule 45 9 2 1 Listing the exceptions for a given day 45 9 2 2 Listing all the exceptions 46 9 2 3 Create new local exception 46 9 2 4 Editing a local exception 47 9 2 5 Edit Calendar object 49 10 Trend funct...

Page 4: ...es and product names added New note 2 1 1 Correction 3 2 New View restriction feature added 3 2 3 Amendment and addition to Wiring test section 11 1 Minor changes to text nomenclature with no effect on content Whole docu ment V2 35 12 2005 CM110754en First edition Reference to trade names and product names The following trade names and product names are registered trademarks BACnet American Nation...

Page 5: ...ways 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 Fav...

Page 6: ...hout brackets their name is marked on the unit housing Example Press the ESC key or Acknowledge with OK 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 ...

Page 7: ...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 When the view restriction optio...

Page 8: ...tions 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 Your user access rights determine whether you can edit values or only read them Refer to Section 6 for detailed instructions on editing values in the PXM20 2 1 3 2 Page Up and Page Down If there are sev...

Page 9: ... 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 ...

Page 10: ...ing 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 ...

Page 11: ...used 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 Title bar Line of text 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 ...

Page 12: ...erator 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 wh...

Page 13: ...r case text in a 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 pres...

Page 14: ...tains 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 Symbols Description Site Hierarchical element Log out Favorites These are defined in the engineering phase and contain frequently interrogated elements...

Page 15: ...09 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 ...

Page 16: ...lt 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 Symbols Status Description Work in progress Override manually overwritten value Life safety Plant security Fault Override active Out...

Page 17: ...ou 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 ...

Page 18: ...e 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 an...

Page 19: ... 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 ...

Page 20: ... IP address subnet mask and default gateway are provided by the DHCP server These settings cannot be modified Note 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...

Page 21: ...are visible Use this menu to configure the site and devices that you 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 Figure 3 7 Default setting a the new operator unit View restriction Off Figure 3 8 View restriction On 3 The devices associated for tha...

Page 22: ...f an alarm even if you are not logged in 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 se...

Page 23: ...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 descr...

Page 24: ...gs 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 Analog Input Output Value objects Binary Input Output Value objects Multistate input Output Value objects Calendar object Device object Notes Only a subset of the standard properties as in the BACnet stand...

Page 25: ...users 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 B...

Page 26: ...rk the Start 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 If no sites are listed this means that no automation station in th...

Page 27: ...ogin 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 Note that wildcard characters are used to represent the password in the password field You can cancel password entry at any time by p...

Page 28: ...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 1 Within the site go to Alarming functions 2 Select Logout 3 Confirm that you really do want to log...

Page 29: ...x 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 displ...

Page 30: ... 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 To edit the value Setpoint for cooling press the direct access key adjacent to the line concerned Note As the procedure described below is always the ...

Page 31: ...ou 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 v...

Page 32: ...ed flow temperature control 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 ...

Page 33: ...ng 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 Forced control symbol The forced c...

Page 34: ...ible 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 you will be able to use the pop up concerned to acknowledge and or reset all the alarms below that hierarchical level The main information about the current event is displayed in a pop up window Figure 7 1 Alarm pop up with unacknowledged alarm The display sh...

Page 35: ...m 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 di...

Page 36: ... acknowledged the associated entry also changes Note Note that for each object only the current alarm i e the last alarm 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...

Page 37: ...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 Your user access rights will determine whether o...

Page 38: ...larm 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...

Page 39: ...he 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 ...

Page 40: ...ers 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 hierarchic...

Page 41: ...ser 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...

Page 42: ... 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 ...

Page 43: ...m 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 da...

Page 44: ...s 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...

Page 45: ...f 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 EXCEPTIONS 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 overvie...

Page 46: ...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 ...

Page 47: ...m which you can select the editing option you require Figure 9 4 Schedule editing options Select CHANGE DATE to display the following dialog box 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 PROFILE for access to the 24 hour profile of an exception In this dialog box you can select whether you wa...

Page 48: ...n Select CHANGE PROGRAM to invoke the editing mode STOP Important The priority should only be modified by fully qualified personnel 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 ...

Page 49: ...igure 9 7 Editing a calendar object You can edit the date and profile as described in Section 9 2 4 Note Exceptions in a global calendar object can be edited only if the time scheduler is on the Primary Server If this is not the case an error message is displayed STOP When editing calendar entries extreme caution is advised as this can sometimes affect the exception programs of other time schedule...

Page 50: ...already been set up it can also be invoked by selecting Alarming functions Online Trend see Section 10 2 There are three separate approaches to the trend view Graphic view Section 10 3 2 Graphic view online Section 10 3 3 List view Section 10 3 4 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 Figure 10 1 Information Use t...

Page 51: ...hes 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 parameters 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 l...

Page 52: ...nd 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...

Page 53: ...t 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 Note The flashing symbol at the beginning of the line in the Online Tr...

Page 54: ...aph 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 Grap...

Page 55: ...Building Technologies Trend function and settings 17 Dec 2009 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 Setting guides ...

Page 56: ...c 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 yo...

Page 57: ... settings 17 Dec 2009 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 Setting guides ...

Page 58: ...ted into a site and must not be loaded with application software Before the wiring test a master reset of the automation station is recommended 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 ...

Page 59: ...PX compact automation station Figure 11 2 Position of service pin in a PX compact automation station on IP 00256 COM2 COM1 RUN STA ERR TX SERVICE TX SERVICE Figure 11 3 Position of the service pin in a PX modular automation station The wiring test is carried out Position of service pin LONWORKS Service pin Service pin for LonWorks devices Servicepin for IP devices ...

Page 60: ...u will have to perform a master reset of the PX automation station before you can carry out a new wiring test Notes on PXM20 E 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...

Page 61: ... involved the PXM20 may need to be specifically identified for commissioning purposes Note Although it exists in the PXM20 this command is not needed within 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 ...

Page 62: ...nformation from the Alarming functions dialog box Figure 11 7 Debug information This dialog box contains the following information Error category letter at the beginning of the line C Information E Error F Fatal error B Reboot 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 Exam...

Page 63: ...our profile 44 DELETE ENTRY 44 NEW ENTRY 44 A Access rights 40 Adjust setpoint 43 Alarm 34 ACKNOWLEDGE 37 Acknowledgement 35 Audible signal 8 DETAILS 37 Reset 38 Select 36 Alarm event history 38 Alarm buzzer 8 Alarm LED 7 Alarm pop up 23 34 Alarm text mode 23 Alarm viewer 35 Alarming functions 17 28 Audible signal 8 23 34 B Buzzer 23 C Cancel audible signal 35 CHANGE DATE 47 CHANGE PROGRAM 44 ...

Page 64: ...gram 62 Dialog box 13 Direct access keys 6 8 Display 11 Buttons 13 Dialog box 13 Graphs 12 Operator field 12 Pop up 13 Title bar 11 Display saver 23 Domain ID 25 E Edit keys 6 Edit profile CHANGE PROGRAM 48 EDIT PROFILE 47 Edit user 42 Editing procedure 31 Editing the switching points 44 Entry Delete 44 New 44 ESC key 6 9 Event DETAILS 37 Events 34 Select 36 Exception list Edit Calendar object 49 ...

Page 65: ...3 G GRAPHIC 54 GRAPHIC 56 Graphic view 32 Graphic view online 56 Graphic view trend 54 Guide line 57 H Heating curve 32 LIST VIEW 32 History 38 I Info mode 10 K Keys Direct access 8 Edit keys 9 ESC 9 Info 10 OK 9 Page Down 8 Page Up 8 Printing convention 6 L LED 7 34 LIST VIEW Heating curve 32 List view online trend 57 LOG DATA POINT 50 Log in and log out 26 Login 27 START 26 Logout 28 ...

Page 66: ...t view 57 Operator field 12 P Page Down key 6 8 Page Up key 6 8 Password 27 40 Input 27 Pop up 13 23 34 Delete 35 Printing conventions 6 R Read access 40 RELEASE ALL CHANNELS 51 RELEASE CHANNEL 52 Relogin 23 RESCAN NETWORK 27 RESET 38 S SAVE TREND SETTINGS 53 SAVE USER 41 Schedule exception list 45 CHANGE DATE 47 DELETE ENTRY 48 EDIT PROFILE 47 NEW LOCAL EXCEPTION 46 SAVE EXIT 48 Schedule exceptio...

Page 67: ...edged 16 Alarm fault state 16 Alarm Normal 35 Alarm Normal state 16 Alarm Off Normal 16 Alarm reset 16 Alarming functions 14 Calendar Calendar entry 14 Change password 15 Command control 14 Daylight savings 15 Debug information 15 Delete user 15 Device 15 Edit user 15 Event acknowledged 16 Event reset 16 Extended alarm 35 Favorites 14 Forced control 33 Global objects 15 Hierarchical element 14 Inf...

Page 68: ... bar 11 Tracking the alarm state 36 Tree structure 29 Trend Buffer size 53 Clear record buffer 53 Compare with channel 54 Display 51 Function settings 50 GRAPHIC 54 Graphic start time 54 Graphic stop time 54 Graphic view 54 56 Graphic view online 56 Guide line 55 LOG DATA POINT 50 Log Enable 53 Logging interval 53 Main dialog box 52 Memory limits 53 Record count 53 RELEASE ALL CHANNELS 51 RELEASE ...

Page 69: ...ologies Index 17 Dec 2009 U User Remove 42 User definition 40 User groups 40 Users Adding 40 V Values Force 33 Reading and writing 30 View Graphic 32 List view 32 W Welcome window 24 Wildcards 27 Wiring test 58 List of inputs and outputs 60 WIRING TEST 27 Write access 40 ...

Page 70: ...logies 17 Dec 2009 Siemens Switzerland Ltd Industry Sector Building Technologies Division International Headquarters Gubelstrasse 22 CH 6301 Zug Tel 41 41 724 24 24 Fax 41 41 724 35 22 www buildingtechnologies siemens com 2003 2009 Siemens Switzerland Ltd Subject to change ...

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