Hardware defaults
The memory space and the device series of your IDEC SmartRelay determines:
How many blocks you can use in the circuit program
Which blocks you have available to create your circuit program
A IDEC SmartRelay of the latest device generation is selected by default.
After you have created a circuit program, you can call the Tools -> Determine IDEC SmartRelay menu command or press the function key [F2] to display an Info Window that shows you which IDEC SmartRelay devices are available for executing your circuit program.
The blocks which are not available for your selected IDEC SmartRelay are grayed out.
Optimizing the circuit program
Should you determine in the course of creating your circuit program that a IDEC SmartRelay device is unable to handle your circuit program, you should first fall back on all the functional resources offered to you by the IDEC SmartRelay device. You could, for instance, replace memory intensive blocks with a structure consisting of several blocks, which altogether require less memory space.
If the various optimization attempts are unsuccessful, then you can use an additional IDEC SmartRelay, or optimize / simplify the functionality of your application.