Chapter 4. ConfigurationGFK-2737F December 2016 434.2.3.4 Configuring Modules with Multiple Modes of OperationSome PACSystems RX3i modules have multiple modes of operation that change the appropriate limits fortheir configuration parameters. For example, an IC695ALG616 analog input module supports a differentset of A/D Scaling Units when in 4 to 20 mA operation than when it is in -10 Vdc to +10 Vdc operation.These different configuration options are implemented as groups of controls which are activated by achoice made outside of the group and marked with +/- expander controls. Typically, this choice is directlypreceding the first group.Figure 11: Analog Module with Multiple Possible Option SettingsWhenever multiple options are available, only those parameters associated with the active choice areused. The other settings are maintained, but are ignored by the module. To prevent confusion, it isrecommended that only the active choice be expanded.The state of the expander control does not affect the choice of active parameters. If the active setting iscollapsed and not visible, it is still active and its values are used for the module configuration.
