Building Automation Knowledge Base

Issue Is it possible to set a delay on a EE_mess alarm in Vista? Environment TAC Vista server Vista workstation Cause A delay on the EE_mess would prevent triggering of unnecessary alarms   Resolution It is not possible to delay a EE_mess alarm in Vista, the delay attribute does not exist on a EE_mess object.

Issue I have a large site and need to add a new Xenta controller. Can I add the group bindings manually as the option to create group bindings in the System Plug-in takes time and controllers are taken offline for the period of the process. Environment NL220 Cause This is possible to do and works very well and effectively if you understand the process. Resolution Follow these steps to add TAG 0 system binding and TAG 1 Xenta binding to your new Xenta controller. In NL220 go to the project setting option. Then check the "Message Tags Connections Tree" option under the Trees tab This will cause a new option to be selected in the tree view labeled Message connections In this tree there will be one TAG0 that covers the entire Xenta controllers. Right click on this TAG 0 connection and select Edit. With the connection window open then select the subsystem       view and drag the TAG 0 from the new Xenta controller into the connections window. This will add your new Xenta controller into the TAG 0 existing binding. Use the update button to update the database. The next step is similar to the TAG 0 but for the TAG 1. You will need to locate the TAG1 Xenta group that you are adding the new Xenta controller into. Look for the name of the Xenta controller in the Xenta group that you need to use. Once you have located this TAG 1 connection right click on this connection and select Edit, with the connection window open then select the subsystem view and drag the TAG 1 from the new xenta controller into the connections window. This will add your new Xenta controller into the Xenta TAG 1 existing binding. Use the update button to update the database.

Issue Integration of the Carlo Gavazzi EM21 Power Meter with the Xenta 5xx\Xenta7xx Xenta 913 and Modbus RTU Environment Xenta 511, 527, 55, 701, 711, 721 (5.1.5 up) Xenta 731, 913 (all versions) XBuilder Carlo Gavazzi EM21 Power Meter Cause Disclaimer:  This device template is intended to provide a starting point for an integrator and is not meant to be a mandatory points list for your integration project. Product Support Services has written this device template in an effort to give our customers a solid example of how to develop a device template for the above product.  The integrator will be responsible for any additions or modifications to this device template.   Please report any problems with this template to Product Support, via the Contact link at the top of this page. Resolution Please use the following dev file as a starting point and a guide to the integration.  This .dev file contains a subset of the registers in the device that PSS considers will be of most use to the integration process.  If any other data is required please see the latest Carlo Gavazzi documentation to make the necessary changes.   To use these files in XBuilder please follow these steps: 1.  Extract the .dev file from the .zip file in the link above and place it in a convenient location on your harddrive. 2.  In XBuilder, right-click on the Modbus Master device and choose 'Add Device'. 3.  Browse to the extracted dev file and choose 'Open'. 4.  Rename the newly added device to a unique name within the Modbus Master network.

Issue How is a subnet defined? Environment Refer to "TCP/IP Network Administration" by Craig Hunt, O’Reilly & Associates, Inc. Cause Sectioning network communication by subnets. Resolution A subnet is defined by applying a bit mask (subnet mask) to the IP address. If a bit is on in the mask, that equivalent bit in the address is interpreted as a network bit. If a bit in the mask is off, the bit belongs to the host part of the address. The subnet is only known locally.

Issue Error message "Access denied" when starting TAC Vista Server Environment Vista Server Cause To start TAC Vista server you have to be an administrator on the computer. Resolution To start TAC Vista server you have to be an administrator on the computer. If you want to log in to TAC Vista with a user that isn't an administrator, you have to run TAC Vista Server as a service. The service has to be started with an account that is an administrator on the computer.