SIMATIC PCS 7 OSx @aGlance User Manual Order Number: 6ES7 6550XX048BD1 Manual Assembly Number: 2806859--0001 Original Edition
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MANUAL PUBLICATION HISTORY SIMATIC PCS 7 OSx 4.1.1 @aGlance User Manual Order Manual Number: 6ES76550XX048BD1 Refer to this history in all correspondence and/or discussion about this manual.
LIST OF EFFECTIVE PAGES Pages Cover/Copyright History/Effective Pages iii — x 1-1 — 1-21 A-1 — A-25 Index-1 — Index-3 Registration Description Original Original Original Original Original Original Original Pages Description
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Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 1 vii Using SIMATIC PCS 7 OSx @aGlance . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 Defining SIMATIC PCS 7 OSx @aGlance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Can @aGlance Do for Me? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.2 Using the @aGlance Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Opening a Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Working within a Session: Cold Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Working within a Session: Hot Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Figures 1-1 1-2 1-3 @aGlance on the SIMATIC PCS 7 OSx System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SIMATIC PCS 7 OSx @aGlance Data Exchange with Windows Clients . . . . . . . . . . . . . . . . . Relationship of Count to Time Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1-4 1-15 A-1 A-2 A-3 A-4 A-5 A-6 A-7 A-8 A-9 A-10 A-11 A-12 A-13 A-14 A-15 A-16 Using the @aGlance/IT Administration Tool . . . . . . .
List of Tables 1-1 OSx @aGlance Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface Purpose of This Manual If You Need Help The SIMATIC PCS 7 OSx @aGlance User Manual describes the data exchange capability between Windows, Linux, UNIX, and VMS application programs and SIMATIC PCS 7 OSx. This option allows you to read process data from the OSx database directly into your remote application program. You can also write data to selected OSx tags. Section 1.1 defines the capabilities of SIMATIC PCS 7 OSx @aGlance. Section 1.2 describes how to plan your interface with OSx.
Conventions Used in the Manual Set The procedures in the various manuals give you step-by-step instructions about how to carry out tasks. Typically, the last step of any procedure requires that you select the OK or Save button, or press Enter. To save space and avoid redundancy, this last step does not appear in the procedure. However, you need to finish each procedure with one of these actions. OK Saves information that you have entered and closes the window.
The Other Manuals The SIMATIC PCS 7 OSx manual set consists of several manuals. If you cannot find the information that you need in the SIMATIC PCS 7 OSx @aGlance User Manual, refer to these other manuals: SIMATIC PCS 7 OSx System Administration Manual This manual describes how to configure network nodes and printers, and how to archive data and back up files.
Optional SIMATIC PCS 7 Features x Preface The following manuals are available for optional OSx features. SIMATIC PCS 7 OSx Remote Data Transfer Manual This manual describes the remote data transfer feature, which allows you to transmit data collected from the process by an OSx station to an Oracle database on the remote computer for historical records and other purposes.
Chapter 1 Using SIMATIC PCS 7 OSx @aGlance 1.1 Defining SIMATIC PCS 7 OSx @aGlance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Can @aGlance Do for Me? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Components Are Required? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . What Are the Capabilities? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Defining SIMATIC PCS 7 OSx @aGlance What Can @aGlance Do for Me? SIMATIC PCS 7 OSx @aGlance enables you to read and write to the OSx database from an application running on a Windows, Linux, UNIX, or VMS computer (Figure 1-1). In this context, @aGlance acts as a server, which is a system or program that provides services to a client. The client is the computer that requests and receives information from the server.
Any application that is compatible with eMation’s @aGlance/IT can communicate with the @aGlance server. Siemens offers two @aGlance client packages as options. These are the Standard Edition client and the Professional Edition client. The @aGlance/IT Standard Edition includes the following components: Add-ins for Lotus 1-2-3 and Excel provide access to @aGlance/IT client functions as spreadsheet macro functions.
Defining SIMATIC PCS 7 OSx @aGlance (continued) What Components Are Required? The components that you need to link a client with the OSx server are listed below. Figure 1-2 shows how the following components interact to allow communication between a client application and the OSx server: Installed and operating SIMATIC PCS 7 OSx system. Connection for the Windows, Linux, UNIX, or VMS computer to the Industrial Ethernet, using the TCP/IP network protocol.
What Are the Capabilities? With the components listed above, SIMATIC PCS 7 OSx @aGlance supports the following types of information exchange. Hot link — automatically retrieves tag data as that data changes. Cold link — reads tag data on demand. History retrieval — reads trend data on demand. Write operation — allows you to write new values to selected tags. SIMATIC PCS 7 OSx 4.1.
1.2 Planning the SIMATIC PCS 7 OSx @aGlance Setup Determining Hot Links Choosing the Host Station The hot link (or monitor) provides your application with tag data that is updated every time the tag values change. For a Windows application, the @aGlance/IT Client Runtime program must be running in order to enable hot links. This is not necessary for a Linux or UNIX application. Before you establish the hot links, you need to consider these points.
1.3 Installing the SIMATIC PCS 7 OSx @aGlance Option Installation: OSx Side If you ordered @aGlance with your SIMATIC PCS 7 OSx system, it is already installed for you. If you ordered the @aGlance option at a later date, follow the steps below to install it. 1. If OSx is running, select Controls ->Logon on the menu bar and log in as root. 2. Click Controls ->Change System State and select Shutdown OSx. 3. Press the left mouse button to bring up a root menu, select New Xterm, and log in as root. 4.
Installing the SIMATIC PCS 7 OSx @aGlance Option (continued) Installation: Client Side You must install all the @aGlance/IT software and the application program on the Windows, Linux, UNIX, or VMS computer that is to be the client. Refer to the user documentation that accompanies these products and follow these general guidelines. Install and run the application, such as Excel. Edit the hosts file on the client computer to add the IP address(es) of the OSx station.
1.4 Using the SIMATIC PCS 7 OSx @aGlance Functions This section describes the basic read/write commands supported by the OSx @aGlance server and lists the parameters that the client application must supply to the server. Consult the documentation that accompanies your client software for details about how your client supplies these parameters. Appendix A provides examples for using @aGlance with Excel.
Using the SIMATIC PCS 7 OSx @aGlance Functions (continued) Reading Null Text Strings Some clients read a null text string as no change and do not update the value. For example, if the value of a TEXT tag changes from “Boiler 1 On” to null (empty), then some clients see no change and continue to read the value as “Boiler 1 On.” The Null2Blank command replaces the null value with blanks that these clients can read as a changed value.
Getting Attribute Names Getting Tag Values To retrieve a list of attribute names for a set of tags, your client must provide the server with the following parameters. Server Name — the prefix osx must appear in front of the OSx station name. Tag Names — designate the tag names for the requested data values. Match String (optional) — enter a text search string. You can use the standard wildcard * (match any) and ? (match single) characters. Start Index (optional) — enter an integer.
Using the SIMATIC PCS 7 OSx @aGlance Functions (continued) Getting Trend Data To retrieve a list of actual historical trend points for a time period, you must first be logged in with your client login. Your client must provide the server with the following parameters. Server Name — the prefix osx must appear in front of the OSx station name. Tag Name — designate the tag name for the requested data values.
Starting Time, Ending Time — for each of these, enter a character string with a maximum total length of 21 characters that represents the starting or ending point for the historical trend. You can specify time using a number with one to six digits. The system accepts a one or two digit number as hours; a three or four digit number as hours and minutes; and a five or six digit number as hours, minutes, and seconds. A colon between fields is optional.
Using the SIMATIC PCS 7 OSx @aGlance Functions (continued) Getting Interpolated Trend Data To retrieve a list of historical trend values interpolated across a time period, you must first be logged in with your client login. Your client must provide the server with the following parameters. Server Name — the prefix osx must appear in front of the OSx station name. Tag Names — designate the tag names for the requested data values.
Time Range (optional) — designate a location to display an actual time string for each set of samples when they are received from OSx. OSx formats these values such that you can use them as the Starting Time in subsequent commands. Status Range (optional, but recommended) — designate a location that will display error messages. This location must be the same size as the output location. Count — enter an integer to represent the number of points for which values are being requested.
Using the SIMATIC PCS 7 OSx @aGlance Functions (continued) Writing Tag Values To write a list or a table of tag:attribute data values, you must first be logged in with your client login. Your client must provide the server with the following parameters. Server Name — the prefix osx must appear in front of the OSx station name. Tag Names — designate the tags you are writing. Attribute Names — designate the attributes you are writing.
Input — enter the values that you are writing. Status Range (optional, but recommended) — designate a location to display error messages. This location must be the same size as the input location. List Counts — enter integers to represent the number of tag names and the number of attribute names. Refer to the user documentation that accompanies your client software for more detailed information.
Using the SIMATIC PCS 7 OSx @aGlance Functions (continued) Monitoring Tag Values (Hot Links) To establish a hot link that monitors a list or a table of tag:attribute data values continuously, your client must issue function calls to initiate the hot link, to retrieve the data, and to close the hot link. Refer to the user documentation that accompanies your client software for more detailed information about how to issue these functions.
Hot Link Update Delay For Linux, UNIX, and Windows (Excel) clients, it is recommended that you process updates from the server at the rate that the server is sending them. This helps prevent server/client communication problems, which could cause the server to shut down. You have the option of configuring a millisecond delay in the @aGlance server, which delays monitor update messages to the client. The default is 500 ms (0.5 seconds), and the range is 0 to 999 ms.
1.5 Troubleshooting Table 1-1 describes various troubleshooting strategies for OSx @aGlance. If you need further assistance, call the Siemens Technical Services Group in the U.S.A. at 423--461--2522. In other countries, call 49--911--895--7000. Table 1-1 OSx @aGlance Troubleshooting Problem Solution OSx goes to Offline state, and you get a Network Transport Error message. When OSx returns to Operate state, try again to read data. If you want to write to tag values, you must log in again.
Table 1-1 PCS 7 OSx @aGlance Troubleshooting (continued) Problem Solution Invalid Parameters message appears. Some fields, such as AttrRange, are optional for the client but not for OSx. Check Section A.3 for special restrictions and fill in all necessary fields. Also consult your online help or client software manuals. Tag values do not agree exactly with OSx database. Expect rounding of values in data retrieval.
1-22 Using SIMATIC PCS 7 OSx @aGlance SIMATIC PCS 7 OSx 4.1.
Appendix A Using @aGlance with Excel A.1 Configuration Hints for Excel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Hardware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entering Station Names and Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adding @aGlance to the Tool Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1 Configuration Hints for Excel Recommended Hardware and Software Entering Station Names and Addresses The following components are the minimum requirements for using Excel with @aGlance/IT. 80386 or higher computer Windows 95, Windows 98, Windows NT 4.0, or Windows 2000 Excel 5.0 or higher Connection for the Windows, Linux, UNIX, or VMS computer to the ethernet, using the TCP/IP network protocol Application @aGlance/IT Standard Edition V3.
Editing the @aGlance/IT Configuration Utility To open the @aGlance/IT Excel add-in in your Windows Program Manager window, click Start ->Programs ->@aGlance ->@aGlance/IT Administration. The Administration dialog box appears (Figure A-1). Enter the station name for the server. If your SIMATIC PCS 7 OSx system has two networks, make two entries, following the conventions noted above for the hosts file. Make sure that the case matches that of the station name you specify in the hosts file.
A.2 Using the @aGlance Option Opening a Session To open an @aGlance session with Excel, refer to your documentation for Excel and the @aGlance/IT add-in, and follow the steps below. 1. Open Windows and run the Excel program. 2. Open a spreadsheet file. 3. If you have already created a sheet that contains hot links, the Excel add-in displays one or both of the following prompts: This document contains links. Re-establish links? or Remote data not accessible. Start application “AAGDDE.
Click Macro Tool... to display the first @aGlance/IT macro function. You can click the display tool to see a list of all the functions (Figure A-3). Click the Command function and enter the Node_Roles command to make sure that the station has the correct role. Do not attempt to acquire data from a station that is out of service. If you need to write tag data as well as read it, click the Command function and enter the Client_Login command to log in to OSx. Use your OSx User ID and password.
Using the @aGlance Option (continued) Working within a Session: Hot Links If you have installed the @aGlance/IT Client Runtime option, you can create up to 256 hot links to the OSx database. Edit a cell and enter the hot link syntax for acquiring the necessary tag data.
✂ Aerial 10 A1 1 2 3 4 5 6 7 8 9 10 B I U a $ o , 0 00 0 00 {=AAGDDE|osxnode1!’lp_0.pv lp_1.pv lp_2.pv lp_3.pv’} B A 100% o/ C D E F G H 0.789999 0.1948 0.9137 19.23 Figure A-4 SIMATIC PCS 7 OSx 4.1.
Using the @aGlance Option (continued) Troubleshooting Hot Links If you have trouble with a hot link, first verify spelling and punctuation in the AAGDDE hot link command. You can use the cold link macro tools Get Tags and Get Attributes to check the spelling of tag and attribute names. You can also view the @aGlance/IT DDE Server window (Figure A-5), which displays error messages, but does not indicate which hot link command the error references.
Use the cold link macro Get to check the value(s) that should be changing. If the value returned by the macro does not match that displayed by the hot link, the hot link has failed. Refer to Section 1.5 for help. If you notice that a hot link does not seem to be updating properly when you open your spreadsheet, close the spreadsheet and reopen it to restart the hot links. Sometimes a hot link is disabled because OSx has been set to the Offline state and then back to the Operate state.
A.3 Using the @aGlance Cold Link Functions Some Guidelines A-10 Consider the guidelines below as you use the Excel add-in macros to create cold links to the process. When you display a macro function you must fill in the function fields before executing the function. For fields that do not require ranges, you can either type the data directly in the field or click a cell containing the appropriate data.
A B 1 2 pv 3 osxstation1 h_range 4 l_range 5 6 7 8 9 10 11 12 13 14 15 C loop1 Figure A-6 SIMATIC PCS 7 OSx 4.1.1 @aGlance D loop2 E F G H ai23 @aGlance/IT Macro Tool AAG Functions... “Get” ServerName.... =$A$3 TagRange... =$C$2:$E$2 AttrRange... =$B$3:$B$5 OutputRange.... =$C$3:$E$5 [StatusRange].... =$C$7:$E$9 Try-it Paste-it Help Pause Close Paste-it Cell...
Using the @aGlance Cold LInk Functions (continued) Command Use the Command function when you need to use the OSx custom functions Client_Login, Node_Roles, and Null2blank. Client_Login Use the Client_Login command (Figure A-7) with the Command function when you need to write data to a tag. Use your OSx User ID and password. A login is not necessary when you only want to read data. ServerName field — the prefix osx must appear in front of the OSx station name.
Node_Roles Use the Node_Roles command (Figure A-8) with the Command function when you need to know the current roles for the OSx stations. If you send the Node_Roles command to a station that is out_of_service, all station are reported as out_of_service, even if they are not. ServerName field — the prefix osx must appear in front of the OSx station name. Command field — enter the following: node_roles InputRange field — OSx does not use this field for this function.
Using the @aGlance Cold LInk Functions (continued) Null2Blank Excel reads a null text string as no change and does not update the cell. For example, if the value of a TEXT tag changes from “Boiler 1 On” to null (empty), then Excel sees no change and continues to display “Boiler 1 On” in the cell. The Null2Blank command replaces the null value with blanks that Excel can read as a changed value.
Disconnect Use the Disconnect function (Figure A-10) to end a session with the server. For the ServerName field, the prefix osx must appear in front of the OSx station name. A 1 2 3 osxstation1 4 5 6 7 8 9 B C D F G H @aGlance/IT Macro Tool AAG Functions... “Disconnect” ServerName.... Try-it =$A$3 Paste-it Help Pause Close Paste-it Cell... Figure A-10 SIMATIC PCS 7 OSx 4.1.
Using the @aGlance Cold Link Functions (continued) Use the Get function (Figure A-11) to retrieve a list or a table of individual tag:attribute or tag:attribute:bit data values. Get A 1 2 osxstation1 3 4 5 6 7 8 9 10 11 12 13 14 ServerName field — the prefix osx must appear in front of the OSx station name. Tag Range field — select the range of cells that contain the tag names for the requested data values. AttrRange field — this field is not optional for OSx.
Use the GetAttributes function (Figure A-12) to retrieve a list of attribute names for a set of tags. GetAttributes A B ServerName field — the prefix osx must appear in front of the OSx station name. TagRange field — select the range of cells that contain the tag names for which you need attributes. MatchString field (optional) — enter a text search string. You can use the standard wildcard * (match any) and ? (match single) characters.
Using the @aGlance Cold Link Functions (continued) GetHistEvent Use the GetHistEvent function (Figure A-13) to retrieve a list of actual historical trend points for a time period. ServerName field — the prefix osx must appear in front of the OSx station name. Tag Range field — select the cell that contains the tag name for the requested historical data values. AttrRange field — this field is not optional for OSx. The AttrRange is a cell that contains a bit name or an attribute name.
You can specify time using a number with one to six digits. The system accepts a one or two digit number as hours; a three or four digit number as hours and minutes; and a five or six digit number as hours, minutes, and seconds. A colon between fields is optional. If AM or PM is not specified, the system defaults to a 24-hour clock.
Using the @aGlance Cold Link Functions (continued) GetHistory Use the GetHistory function (Figure A-14) to retrieve a list of historical trend values interpolated across a time period. ServerName field — the prefix osx must appear in front of the OSx station name. Tag Range field — select the range of cells that contain the tag names for the requested historical data values. AttrRange field — this field is not optional for OSx.
A B 1 2 3 osxstation1 2:00:00 2:05:00 4 2:10:00 5 2:15:00 6 2:20:00 7 2:25:00 8 2:30:00 9 2:35:00 10 11 12 13 14 15 IntervalTime field — enter a text string to represent the time interval between samples of historical data. For correct syntax, refer to the appendix on time strings in the SIMATIC PCS 7 OSx Reports Manual. TimeRange field (optional) — select the range of cells to display an actual time string for each set of samples.
Using the @aGlance Cold Link Functions (continued) GetHistStat The GetHistStat function is not supported by OSx. GetTags Use the GetTags function (Figure A-15) to retrieve a list of tag names. A-22 ServerName field — the prefix osx must appear in front of the OSx station name. MatchString field (optional) — enter a text search string. You can use the standard wildcard * (match any) and ? (match single) characters.
A B 1 2 3 osxstation1 4 5 6 7 8 9 10 11 12 13 14 15 635 loop1 C D E F G H @aGlance/IT Macro Tool loop2 loop3 loop4 loop5 AAG Functions... “GetTags” =$A$3 ServerName.... loop6 loop7 loop8 loop9 [MatchString].. =“loop” [StartIndex]... =$B$1 OutputRange... =$B$2:$B$10 Try-it Paste-it Help Pause Close Paste-it Cell... Cells B2--B10 will display the requested tag names. Cell B1 will display the start index.
Using the @aGlance Cold Link Functions (continued) Node_Roles See the Command function. Null2Blank See the Command function. Put Use the Put function (Figure A-16) to write a list or a table of individual tag:attribute data values. OSx logs all tag value changes to the OSx database in the Operator Change Log with the last eight characters of the IP address in the place of the User ID. AttrRange field — this field is not optional for OSx.
A 1 2 3 osxstation1 4 5 6 7 8 9 10 11 12 13 14 B StatusRange field (optional) — select the range of cells to display any error messages that occur. This range must be the same size and shape as the InputRange. C sp D E ai18 ai19 ai20 0.5 0.9151 175 G H @aGlance/IT Macro Tool AAG Functions... “Put” ServerName.... TagRange. =$A$3 [AttrRange]... =$B$3 InputRange... =$C$3:$E$3 =$C$2:$E$2 [StatusRange]... =$C$4:$E$4 Try-it Paste-it Help Pause Close Paste-it Cell...
A-26 Using @aGlance with Excel SIMATIC PCS 7 OSx 4.1.
Index A Accessing station role, 1-10 tag attribute names, 1-11 tag names, 1-10 tag values, 1-11 text tag data, 1-10 trend data, 1-12 trend data, interpolated, 1-14 Address, TCP/IP, 1-6, 1-8 editing from Excel, A-2 Attributes, getting, 1-11 from Excel, A-17 B Bit, tag attributes, 1-11 C Client application programs, 1-3 defined, 1-2 installing, 1-8 Client_login command, 1-9 from Excel, A-12 Cold link defined, 1-5 Excel macro, A-10 in Excel, A-4 Command function, 1-9 from Excel, A-12 Components, @aGlance, 1-
Functions (continued) OSx-supported disconnect, 1-19 get, 1-11 get attributes, 1-11 get history, 1-14 get history event, 1-12 get tags, 1-10 hot link, 1-18 node_roles, 1-9 null2blank, 1-10 OSx login, 1-9 put, 1-16 G Get attributes function, 1-11 from Excel, A-17 Get function, 1-11 from Excel, A-16 Get history event function, 1-12 from Excel, A-18 Get history function, 1-14 from Excel, A-20 Get history status function, 1-9 from Excel, A-22 Get tags function, 1-10 from Excel, A-22 Host station changing, 1-6
N Node_roles command, 1-9 from Excel, A-13 Null text strings, reading, 1-10 from Excel, A-14 Null2blank command, 1-10 from Excel, A-14 Station roles, getting, 1-9 from Excel, A-13 T Tag names, getting, 1-10 from Excel, A-22 OSx @aGlance, capabilities, 1-2 Tag values getting, 1-11 from Excel, A-16 monitoring, 1-18 writing, 1-16 from Excel, A-24 OSx login function, 1-9 from Excel, A-12 TCP/IP address, 1-6, 1-8 editing from Excel, A-2 OSx station.
Index-4
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