Rockwell Automation 1785 PLC-5 User Manual Page 26

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Publication 1785-SG001B-EN-P - June 2006
24 Select Network Communications
ControlNet Communication Adapters
ControlNet Hot Backup Module
The ControlNet Hot Backup Module provides backup of ControlNet I/O.
A secondary controller qualifies critical control information with the primary
controller. Both controllers consume information from inputs and connect to
outputs, but only the primary controller controls the outputs. The secondary
controller establishes control of outputs if the primary controller shuts down.
ControlNet Hot Backup Basic System
Cat. No. Function Comm.
Rate
Design Considerations Cable Power
Dissipation,
Max
Backplane
Current
Load
1734-ACNR Interfaces POINT I/O modules in a
POINTBus backplane to ControlNet
controllers across a ControlNet network
5 Mbps Requires a remote ControlNet
PLC-5 controller, Series F,
Revision E, or later.
Quad shield RG-6
coaxial cable
5.0 W 1.0 A
1747-ACN15,
-ACNR15
Interfaces SLC I/O modules in an SLC
chassis to a ControlNet scanner port
across a ControlNet network
5 Mbps Requires a remote ControlNet
PLC-5 controller.
Quad shield RG-6
coaxial cable
5 W 900 mA
1771-ACN15,
-ACNR15
Interfaces 1771 I/O modules in a 1771
chassis to a ControlNet scanner port
across a ControlNet network
5 Mbps Place in remote ControlNet
chassis. Requires a ControlNet
PLC-5 controller.
Quad shield RG-6
coaxial cable
5.2 W 1.0 A
1794-ACN15,
-ACNR15
Interfaces FLEX I/O modules in a FLEX
I/O rack to a ControlNet scanner port
across a ControlNet network
5 Mbps Requires a remote ControlNet
PLC-5 controller.
Quad shield RG-6
coaxial cable
4.6 W 640 mA
1797- -ACNR15 Interfaces FLEX Ex I/O modules in a
FLEX Ex rack to a ControlNet scanner
port across a ControlNet network
5 Mbps Requires a remote ControlNet
PLC-5 controller.
Quad shield RG-6
coaxial cable
8.5 W 640 mA
Cat. No. Quantity Description
1785-CHBM 2 ControlNet Hot Backup Modules
1785-L40C15/F or 1785-L80C15/F
(1)
2 ControlNet PLC-5 Programmable Controllers, Series F or later
1771-A1B through 1771-A4B 2 1771 I/O Chassis
1771-P4 through 1771-P10 2 1771 Power Supplies
1771-ACN(R)15, 1747-ACN(R), or
1794-ACN(R)
1 ControlNet Adapter
1784-KTCX15 or 1784-PCC card 1 Communication card for personal computer or laptop computer
9234 Series 1
RSLogix
5 Programming Software, version 3.22 or later
9357-CNETL3 1
RSNetWorx
for ControlNet
Software, version 1.80.xx or later
9234 Series 1
RSLinx Gateway
Communication Software, version 2.00.97.30 or later
Other System Requirements ControlNet network cables, taps, and terminators for connections between the PLC-5 controllers and I/O adapters
(1)
Both controllers must have the same series and firmware revision.
ControlNet PLC-5
Controller with 1785-CHBM
Cartridge Installed
PanelView Plus or Other
ControlNet PLC-5
Controller with 1785-CHBM
Cartridge Installed
1794 FLEX I/O
1746 I/O
1771 I/O
Redundant
ContolNet Network
and/
or
and/
or
Interface Device
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