When Group Output binary is set to 7, which DO[#]'s will be switched ON?

When Group Output binary is set to 7, the binary representation of the number indicates which Digital Outputs (DO) will be activated. The number 7 in binary is represented as 0111. Each bit in this binary representation corresponds to a specific DO, with the least significant bit representing DO[1] and the most significant bit (among those being considered) representing DO[4].

Therefore, for the binary 0111:

• The first bit corresponds to DO[1], which is ON.

• The second bit corresponds to DO[2], which is ON.

• The third bit corresponds to DO[3], which is ON.

• The fourth bit corresponds to DO[4], which is OFF.

This means that only DO[1], DO[2], and DO[3] will be switched ON, as the fourth bit indicates that DO[4] will remain OFF. Consequently, the group output configuration of 7 effectively results in the activation of DO[1], DO[2], and DO[3], validating why this choice is the correct answer.