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IC695CPE400 Rackless CPU Quick Start Guide
GFK-3002G
of the Primary CPU to the upper LAN3 port of the Secondary CPU and
connect the lower LAN3 port of the Primary to the lower LAN3 port of the
Secondary. Note that no additional hardware, other than the two
redundant CPUs, may be connected to LAN3.
To enable redundancy in a CPE400 project, select the CPE400 target in the
PME Navigator
and use the
Property Inspector
to change the
Enable
Redundancy
target property to
True
.
Important: Set the
Background Window Timer
to a minimum of 5ms in both
the Primary and Backup CPE400 hardware configurations. The
Background
Window Timer
setting may be found on the
Scan
Tab in the CPE400’s
hardware configuration.
Once configured for HSB Redundancy, the RACT and RBOK LEDs functional.
RACT indicates the Local CPU is Ready & Active; RBOK indicates the Remote
CPU is Ready. These two LEDs are also reflected in the Status Data of the
CPU and are presented as OPC UA Variables.
The OLED display includes two menu items used in conjunction with
Redundancy:
▪
RDN Info provides status information via the OLED display.
▪
RDN Command permits the operator to perform a Role Switch.
For further details, refer to the
PACSystems Hot Standby CPU Redundancy User
Manual
, GFK-2308.