Duplex Power Supply Units; Duplex Communications Units; Active And Standby Communications - Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual

Duplex Power Supply Units

3-2 Duplex Power Supply Units
3-3

Duplex Communications Units

3-3-1

Active and Standby Communications

A CS1D Duplex System can be configured with Duplex Power Supply Units to
prevent the system from going down due to a Power Supply Unit error.
Be sure to use CS1D-PA/PD@@@ Power Supply Units. No other Power Sup-
ply Units can be used in a CS1D System. AC and DC Power Supply Units can
be used on the same Backplane.
CPU Rack
CS1D Expansion Rack
When two CS1D Power Supply Units (CS1D-PA/PD@@@) are mounted, the
Backplane's power supply of 5 V DC and 26 V DC is provided in parallel from
the two Power Supply Units.
Even if the power is interrupted at one of the Power Supply Units, or if one of
the Power Supply Units breaks down, power can still be provided to the Rack
by the other Power Supply Unit alone.
Power Supply Unit errors can be checked using the Programming Console, or
by means of A31602, A319, and A320 in the Auxiliary Area.
The CS1D supports duplex operation of Ethernet and Controller Link Commu-
nications Units. With duplex Communications Units, communications will con-
tinue even if errors occur in a Communications Unit or on the communications
line.
There are two methods used for duplex communications: Active/standby and
primary/secondary. The method that is used depends on the type of Commu-
nications Unit that is being used.
Refer to the operation manual for the relative Communications Unit for details
on settings and other operating information.
The active/standby method of communications is used by the following Com-
munications Units. These Units also achieve redundant communications
paths by using a loopback.
CS1W-CLK12-V1 Controller Link Unit
CS1W-CLK52-V1 Controller Link Unit
Two Communications Units are connected to the same communications line.
One of them operates in Active Mode, the other one in Standby Mode. The
same unit number and node address are set for both of the Units.
Power Supply Unit
Power Supply system for
Power Supply Units on right.
Power Supply system for
Power Supply Units on left.
Power Supply Unit
Section 3-2
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