GE N60 Instruction Manual page 274

FLEXLOGIC
Therefore, the required logic can be implemented with two FlexLogic equations with outputs of virtual output 3 and
virtual output 4, shown as follows.
2. Prepare a logic diagram for the equation to produce virtual output 3, as this output is used as an operand in the virtual
output 4 equation (create the equation for every output that is used as an operand first, so that when these operands
are required they already have been evaluated and assigned to a specific virtual output). The logic for virtual output 3
is shown as follows with the final output assigned.
5
3. Prepare a logic diagram for virtual output 4, replacing the logic ahead of virtual output 3 with a symbol identified as
virtual output 3, shown as follows.
5-158
Figure 5-67: Logic example with virtual outputs
Figure 5-68: Logic for virtual output 3
Figure 5-69: Logic for virtual output 4
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS