1756-EWEB Module: Web Server and More - Rockwell Automation

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48. Refresh the browser. The web browser caches pages/folders that you have viewed in the computer’s memory. To ensure that your view is up-to-date, you should refresh the browser window. 49. For security purposes we need to disable FTP on the EWEB. On the EWEB home page in Internet Explorer navigate to Administrative Settings� Device Configuration� Device Services and click the FTP enabled checkbox to turn off FTP. Click the Apply Changes button. 50. Let’s look at the web page we downloaded: Type “10.88.89.2xx/user/web/index.html” using the IP address for your EWEB module. Note: All user downloaded files are displayed on the web in the /user/web folder. 51. Using RSLogix 5000 � Controller Tags, edit the values of the tags displayed on the web page. Notice that the values update as soon as the browser refreshes, but that the screen doesn’t blink each time. 52. Type a new value into the blank field on the right-hand screen (post.html). Click the Set tag button and notice that the value updates on the left-hand screen (get.asp) and in RSLogix 5000. Backup and Restore Web Pages and Data Views There are several items that are stored on the web server module that you might want to archive in a backup copy: • User accounts and passwords • Data views • Custom web pages Furthermore, Acme may wish to create the same EWEB module over and over again, without having to start from scratch. Using backup and restore, Acme can easily copy one setup configuration to many modules. Backup the EWEB’s files: 53. Right click on the Desktop and click New�Folder. 54. Name the folder “EWEB Backup”. 55. Enable FTP: Administrative Settings � Device Configuration � Device Services � check FTP Enable checkbox�Apply Changes. LAB 1: 1756-EWEB Module Page 12
56. We want to prevent a third party from making changes to the EWEB while we backup or restore, so we must lock the module. Administrative Settings � Server Management � Backup/Restore. Click the Lock Site button. 57. Click OK to the warning. 58. As we did earlier in the lab, type “ftp://administrator@10.88.89.2xx” in the address bar of the browser. You may need to refresh the browser. 59. Press Ctrl + A to highlight both the System and Web folders. 60. Drag both of these folders and drop them into the “EWEB backup” folder on your desktop. 61. Open the EWEB backup folder�open the system folder�open the configuration folder. 62. Right click on network.xml and open it with Notepad. Notice that the IP address, subnet, etc. for the EWEB module is stored here. Information in any of the files in the configuration folder can be modified. So, for Acme’s next job, they could modify these files all offline, in order to: • Set the EWEB to a different home page, • Change the IP address, • Set the Email Config to their customer’s internal Email Server, Etc. Be very careful modifying these files in the Config folder, things can get really messed up if these settings are modified incorrectly! Don’t mess around in here unless you have to. Acme can modify these backed up files in order to create custom EWEB applications using only Wordpad, Notepad, FrontPage, Visual Studio or some other design tool. These folders can then be copied to any EWEB module. But again, be careful. In order to restore, just move the selected files to their appropriate folders in the EWEB through ftp. 63. Return to the other Internet Explorer and unlock the EWEB module by pushing the Unlock Site button. Using graphics and other resources in a web page Your customer might wish to take advantage to the web’s ability to present graphics. We will download a graphics based web page. Follow these steps to download a (previously written) graphics based web page: LAB 1: 1756-EWEB Module Page 13
Page 1 and 2: Hands-On Lab Workbook 1756-EWEB Mod
Page 3 and 4: Background: The EWEB module allows
Page 5 and 6: LAB 1: 1756-EWEB Module Only the at
Page 7 and 8: Different Data Views can act as dif
Page 9 and 10: 34. You must now create three tags:
Page 11: 44. In the browser’s address bar,
Page 15 and 16: additional software to view (unlike
Page 17 and 18: 80. Close ALL instances of Internet
Page 19 and 20: ased, it is platform independent. B
Page 21 and 22: In this example, we will send data
Page 23: EWEB Performance, EWEB Effect on Sy

1756-EWEB Module: Web Server and More - Rockwell Automation

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