NETWORKING
SNAP PAC R-Series Controller User’s Guide
32
Network Segmenting: Wired and Wireless Networks
The network shown in this diagram requires a Wired+Wireless R-series controller
(SNAP-PAC-R1-W or SNAP-PAC-R2-W). The PAC runs a PAC Control strategy and controls one
or more remote I/O units via a wireless access point. The controller is also connected to a
separate, wired enterprise network through one of its wired Ethernet network interfaces.
The controller could just as easily talk to the I/O units through a wired network and segment
the enterprise PCs on a wireless LAN.
In addition, because the Wired+Wireless PAC has two wired interfaces plus the wireless one,
it could segment three networks—for example, a wired control network, a wired enterprise
network, and a wireless connection with a laptop for maintenance or testing purposes.
PC running
PAC Display
PC running
PAC Control
Ethernet switch for
wired network
Remote I/O unit
controlled by the R1-W
on an isolated network
SNAP-PAC-R1-W wired+wireless controller communicates with host computers through a wired network
interface, controls I/O directly on its own rack, and controls one or more remote I/O units on an isolated
wireless network.
Wireless
access point
Field devices,
location #1
Field devices,
location #2
SNAP-PAC-R1-W
Control Network
Enterprise Network
