Echelon LonMaker - Manual (Page 282)

266 Managing Networks
For functional blocks, this dialog displays the following data in the top pane: subsystem, device,
functional block name, applicable status (indicated by "YES"), and any comments about the
functional block.
For application devices and routers, this dialog displays the following data in the bottom pane:
subsystem, device name, state, and any comments about the device or router.
7. To save the status summary to a text file (.txt extension), c lick Save As.
Using Resource Usage Reports
You can generate a network resource report to get a summary of group ID, subnet ID, and selector
usage in your network. You can display a summary of the usage and availability of alias table entries
for a device.
Network Resource Report
You can display a summary of the usage of group IDs, subnet IDs, and selectors in your network. The
usage of these resources is displayed in a network resource report. This report displays the number of
group IDs, subnet IDs, and selectors that have been allocated out of those available in your LonMaker
drawing. Individual color status bars indicate the percentage consumed and available for each
resource. As more network resources are consumed, the status bar fills up and changes color.
The
status indicated by each color is as follows:
•
Green . Resource is readily available (up to 75 percent used).
•
Yellow . Resource is available, but beginning to run low (between 75 and 90 percent used).
•
Red . Resource is critically low (over 90 percent used).
Each of these resources is described as follows:
• Group ID. A group ID is allocated when you create a multicast connection with a group
broadcast. Once a group ID is allocated for a connection, it cannot be reused. There are 256
group IDs available per network. You will not be able to create connections with group multicast
once all group IDs are allocated. You can prevent group ID usage by using other forms of
multicast such as subnet or domain broadcast, or alias multi-unicast.
• Subnet ID. A subnet ID is allocated when you create a new channel, when you add more than 127
devices to an existing subnet, or when you explicitly create a subnet. Once a subnet ID is
allocated, it cannot be reused for a different channel. There are 127 subnet IDs per network. You
will not be able to add new channels or subnets once all subnet IDs have been allocated.
• NV Selector. An NV selector is allocated when you create a new network variable connection. A
pool of NV selectors may be shared among multiple connections, but the remaining NV selectors
are exclusive and can only each be used for one connection. You will not be able to create more
connections once all exclusive NV selectors are allocated unless the LonMaker tool can
successfully share one of the shared selectors. The network resource report shows the size of the
shareable NV selector pool, and it shows the size and consumption of the exclusive selector pool.
To view the network resources report, open the LonMaker menu and then click LonWorks Network
Resources.