Single SLS 1508 SIS Network ring, single domain

The simplest implementation of an SLS 1508 SIS Network domain is to have one SIS Network ring and one SIS Network domain that includes all of the Logic Solvers in the SIS Network ring.

Figure: Single SIS Network ring, Single SIS Network domain

In this layout a secure parameter in a Logic Solver configured as a Domain Global Publisher can be referenced by any other Logic Solver in the domain. Configuring Logic Solvers as System Global Publishers is not required because all Logic Solvers in the domain are in the same SIS Network ring so Domain Global Publishers are adequate to communicate between controllers. If you need more than the 32 Domain Global Publishers  you can use any or all of the 16 available System Global Publishers within the domain if you are not using them for another purpose.