How can a DOUT for a group be referenced?

• A. DOUT for a group can be referenced as a subroutine label.
• B. DOUT for a group can also reference a Byte Variable for a status of 0-255.
• C. DOUT for a group is referenced as a digital input address.
• D. DOUT for a group can be referenced as a pulse width.

Answer: (B)

DOUT for a group is best referenced as a Byte Variable because it lets you treat the whole set of outputs as a single 8-bit value (0–255), with each bit representing one output in the group. This makes reading and setting multiple outputs efficient: you can turn on or off specific outputs by manipulating bits, and the Byte Variable holds the combined status of the entire group. For example, a value where certain bits are 1 indicates those corresponding outputs are on, while 0 bits indicate off. The other options don’t fit because a subroutine label is for control flow, not addressing outputs; a digital input address refers to inputs, not outputs; and pulse width implies timing modulation which isn’t how you reference a grouped DOUT.