Node

NOTE!

When running node/portal, the portal should have at least the same version of Web Port as the node, to avoid the system synchronizing functionality that the portal does not support.

NOTE!

The synchronization of data between node and portal is dependent on synchronization of system times. Make sure that Windows in both the node and the portal times are set to automatic sync and that they are in contact with the time servers.

A warning will appear in Node settings if the times differ more than 30 seconds.

Add a node

Log on to the installation that should be a node and go to System settings/Communication/Node setup. Click Connect portal in the toolbar menu. Enter what the node should be called in the Portal and the URL address of the Portal and then click SAVE.

Then log in to the installation that will act as the portal. Go to System settings/Communication/Node setup, select the node in the list that was recently connected, and verify/complete the settings as below.

Setting:	Description:
Display Name (My Pages)	Name to Display under My Pages
Note	Free text comment on the node
Active Unit	Enables the node in the portal and begins synchronization
Alarms enabled	Indicates whether alarm handling is active for the node
Block alarm sender	Blocks alarm transmissions connected to the node
Memory mode	Enables memory mode and prevents reading / writing to the node
Debug mode	Logs events to the debug log
Tag Prefix	Prefix that is added before the tag name from the node. Can only be changed until the first time the node is activated
Read-cache	Indicates cache time that limits how often read operations are performed from the node
Status Tag	Indicates the tag to which IO-device status is written. (See Status tag under IO devices)
Basic directory	Indicates which directory the node's own directory structure should be added to
Show node icon	Indicates whether the node's pages / directories are to be added their own directory with the node icon
Synchronize trend from	Indicates how far back in time historical trend should be synchronized from
Trend synchronization interval	Time interval between trend synchronization
Current trend synchronization	<-Current position back in time for trend synchronization
Current trend synchronization	->Current position in the future for trend synchronization
Synchronize alarms from	Indicates how far back in time alarm history should be synchronized from
Alarm synchronization interval	Time interval between alarm synchronization
Current alarm synchronization	<-Current position back in time for alarm synchronization
Current alarm synchronization	->Current position in the future for alarm synchronization

Data is synchronized to the portal when changes are made in the node. (System images, tag lists, schedules and alarm and trend history).

Directories that are synchronized (and adapted to handle node/portal solutions are):

• In assets: libs, upload
• In system: pages, backgrounds, docs

Information:

Trend and alarm synchronization is done 1 hour in the future and 1 hour in the past, based on the current position, at each synchronization time.

Information:

The portal will lock the connection for node to the license id that has previously been synchronized from the node or been configured under Web Port license id. If the license id on the node is changed, it can either be changed or cleared in the portal. In the latter case it will automatically be populated with the license id of the first node with the same GUID that connects to it.

Information:

Trend and alarm synchronization is done 1 hour in the future and 1 hour in the past, based on the current position, at each synchronization time (according to setting for Trend synchronization interval). Forwards the sync is run until it reaches current date/time, backwards until it reaches the date/time set in Synchronize trend from.
If any re-synchronization is needed, this can be performed by manually setting Current trend synchronization, which will make the cycle step through according to above.

Please note that the sync interval may affect system performance.

Edit node

From the node side it is possible to change some settings for the portal by clicking the name of the connection under node setup.

The following settings are available on the node:

Setting:	Description:
Description	Description of the connection, e.g. address. Shown in the list
Note	Possibility to write a longer description/note
Active Unit	Enables the node in the portal and begins synchronization
Debug mode	Logs events to the debug log
Portal address (URL)	The address to the portal. Was configured when setting up connection
Allow remote admin	Currently has no function, but is prepared for coming remote administration of a node from a portal

Remove a node

A node is removed by first clicking on the node, accessed in SYSTEM SETTINGS/COMMUNICATION/NODE SETTINGS and selecting the Portal connection and click delete. Then log in to the Portal and remove the connection to the Node.