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44 Series 90-70 Hot Standby CPU Redundancy User’s Guide – December 1993
GFK-0827
Configuring a Primary Redundant PLC
The steps required for configuring a Primary Redundant PLC are described below. The
Primary PLC and the Secondary PLC must be configured separately. An example of the
configuration screens for each system is provided on the following pages. The
programmer must be connected to the CPU in the Primary PLC to configure the Primary PLC and
then moved to the CPU in the Secondary PLC to configure the Secondary PLC. First, the
Primary PLC will be configured.
While in the Configuration Software main menu, select I/O (F1). The default
configuration for the I/O Configuration Rack screen is displayed.
Position the cursor on rack 0, slot 1 and press the zoom softkey (F10) to zoom into the
CPU module currently configured in slot 1. Press the cpu softkey (F1) to have a catalog
list of the available CPU modules displayed. The currently selected CPU is highlighted
in reverse video.