OPTO 22 SNAP PAC R SERIES, Руководство пользователя

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NETWORKING
SNAP PAC R-Series Controller User’s Guide 26
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