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Digital Input Framework
This sub-framework is located in the Advanced folder. This folder contains the
ION modules that control the behavior of the I/O Expander digital input
ports. Included in this folder are eight Digital Input modules, eight Counter
modules, two External Pulser modules, and two Pulse Merge modules.
The Counter modules are used to count the number of state changes
occurring in the Digital Input modules. The Pulser module, when pulsed,
resets the Counter modules to zero. Master Reset also resets the Counter
modules to zero.
The Digital Inputs are pre-configured to read pulses from the digital input
ports on the I/O Expander. Using Designer, right-click near the center of the
Digital Input modules to check the settings of the Port setup registers to ensure
the appropriate ports are in use.
Digital Outputs Framework
This sub-framework is located in the Advanced folder. This folder contains the
ION modules that control the behavior of the I/O Expander’s digital output
and analog output ports. Two areas in this folder are labeled “Form C
Relays” and “Form A Relays or Analog Outputs”.
Form C Relays
To configure the Form C relays, refer to “Energy Pulsing Setup” described
above.
Form A Relays
The Form A relays are controlled by the three Digital Output Modules and a
Pulser module.
By default, the Pulser module generates a pulse when the Sliding Window
(Rolling Block) Demand interval is reached. Set this Pulser module’s Port setup
register to an appropriate I/O Expander’s Form A port.
The three Digital Output modules are not linked to any parameters. Link an
ION module’s output to an input of the Digital Output. Set the Digital
Output’s Port setup register to an appropriate I/O Expander Form A digital
output. You may want to change the Digital Output’s Pulse Width setup
register.
