SNAP-PAC-R2-W OPTO 22, SNAP-PAC-R2-W Datasheet - Page 8

• Manufacturer Part Number: SNAP-PAC-R2-W
• Description: Programmable Controller Wireless
• Manufacturer: OPTO 22

Specifications of SNAP-PAC-R2-W

• Accessory Type: Programmable Automation Communication
• Signal Input Type: Ethernet, RS-232
• Rohs Compliant: Yes
• For Use With: SNAP PAC System
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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System Architecture (continued)
The network shown in this diagram requires PAC Control Professional, PAC Display Professional, and OptoDataLink.
SNAP PAC R-series Controller in Redundant Network Configuration
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
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This diagram shows two SNAP PAC R-Series controllers
functioning as I/O unit brains connected to two separate
Ethernet networks. This configuration addresses the concern
that an Ethernet network may fail or need maintenance,
leaving the PC running OptoOPCServer and OptoDataLink,
the PC running PAC Display, the controller, and the I/O units
unable to communicate.
I/O units are all connected by the controller.
Each I/O unit is connected to its own group of
sensors and actuators, but all are connected to
the same two networks.
Ethernet switch,
network #1
Opto 22 Redundant Network
Sensors and actuators,
Sensors and actuators,
SNAP PAC R-Series Controllers
In this configuration, if one network goes down, devices can
still communicate because the SNAP PAC R-series controllers
and the SNAP PAC S-series controllers both have two network
interfaces, and each PC in this system has two network
interface cards.
Using a Wired+Wireless PAC (SNAP-PAC-R1-W or
SNAP-PAC-R2-W) makes it possible for one of these networks
to be a wireless LAN.
location #1
location #2
SNAP PAC S-series
controller controls
all I/O units.
PC with two NICs running
PAC Display Professional
PC with two NICs running
OptoOPCServer
SNAP PAC R-series
controller
SNAP PAC R-series
controller
Ethernet switch,
network #2