Emerson E2 operation manual Ethernet Network Layouts, Closed Network Layout

7.3Software Specifications

TCP/IP

E2 controller versions 2.10 and later communicate between controllers using the TCP/IP protocol. TCP Port 7238 is the default for connections established between the controllers. All peer communications occur over this port.

7.4Ethernet Network

Layouts

The two types of network options for E2 controllers using Ethernet communications are:

1.“Closed Network” - E2 devices are not connected to a store’s LAN. (The only devices on the net- work are the E2 controllers themselves.) This network type is used if there is no need to inte- grate the network into the company’s intranet.

2.“Open Network” - E2 devices are connected to the store’s LAN. (Devices on the network include E2s and other Ethernet-TCP/IP devices.) This network type is used if the network will be con- nected to the store’s LAN.

NOTE: Contact your IT Network Administra- tor for setup parameters for both closed and open networks.

The E2 peer Ethernet network facilitates communica- tions between E2 controllers. These include at least the following:

•Routing of messages between external entities such as UltraSite, InSite, Site Manager, and non-gateway E2 controllers.

•Distribution of global data and other network variables such as system time, controller iden- tification, etc.

•Communication between E2 controller applica- tions such as Remote Login and Remote File Services.

NOTE: The gateway E2 is the E2 controller at a remote site to which UltraSite directly con- nects. It is through this E2 that UltraSite com-

municates with the other controllers (defined as the “non-gateway” E2s and external entities such as Ultr- aSite, InSite, Site Manager etc.).

7.4.1Closed Network Layout

Figure 7-1- Closed Network Layout

7-2 • E2 RX/BX/CX I&O Manual 026-1614 Rev 4 5-JAN-2013