Peripheral Devices
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8.12.1.3
Set up shared variables
A number of signals are predefined in the PLC, but signals can be added, delete, or get a changed
functionality. Signals under the group
Shared_Variables
in the Global variables sheet in the PLC can be
shared between I/O and fieldbus. Signals under the group
Fieldbus_Variables
represent the fieldbus
mapping.
When converting a setup older than version 7.5.0, the PLC will not have the same signals defined. Access
to the PLC part of the fieldbus data area from the PowerMACS PLC is configured in two steps. First you
must configure how the respective area should be used by defining variables. Secondly must configure
Summary of Contents for PowerMACS 4000
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