Procedure for Splitting Existing Links to DLA architecture
As cable degrade over time it is more economical to split a controller LAN into multiple DLA sites that to re-run the wire. This is especially true when dealing with broken underground wire.
This is a basic order of operations for how to split a single link.
Please select Start > All Programs > I/NET > Manual-Technical Reference Guide and review section 1-11 before proceeding.
- Determine a logical location for the split in the controller LAN
- Install the Xenta 527 or NPR and ensure that Ethernet communication if available. (DO NOT plug in the Ethernet cable yet)
- Back up the I/NET database
- Reconfigure the existing router to be a DLA device. DO NOT use site 0
- Configure the new Router to be a DLA device using a different site address than the first router. You can use the same station address if needed. Plug in the Ethernet cable
- At the I/NET workstation verify that each of the devices is online. You may need to restart the I/O server and verify Reference Hosts.
- At the Workstation you should now have to connect to the Link, then to the controller.
- In I/NET configuration, click on Host Masks. Modify the host mask settings for the existing router and note the settings. Copy theses settings to the new DLA device(s).
- Back up the I/NET database
- Physically break the Controller LAN and connect one leg to the new Router. You may need to remove or disconnect any segment of wire that now leads to no where.
- At the I/NET workstation you should now be able to connect to each site and see controllers populated under it. If you cannot, a common reason is that you have 2 routers connected to the same controller LAN section and no router connected to the other section.
- Select Edit>Host Computer>Network Configuration
- Notice that the Split Link has been renamed to DLA Link #. You can change this name in newer revisions of I/NET
- Select the link you have split and click Penetrate.
- You will see the sites displayed with " * " next to each. Each site will take the Host Name you gave it during configuration.
- Click Save All
- Penetrate into the highest numbered site. Click Save all and close. Then work your through each site from highest to lowest number saving all of the controllers under it.
- Open a graphics page and test points that are under each of the sites.
- In an access system. You can test by adding or removing an individual from a door under each site.
- Backup the I/NET Database.
- You can not have duplicate station addresses under the same link even if they are on different sites. The controllers are addressed LLSS (Link##Station##) no duplicate LLSS address can exist within an I/NET system.
- The exception to the above is that all Xenta 527 can use the same station address as that address is not visible from the Host workstation. Each 527 must have a unique link and site address.