This paper provides a passivity based framework to synthesize lm2-stable
digital control networks in which m strictly-output passive controllers can control n−m
strictly-output passive plants. The communication between the plants and controllers
can tolerate time varying delay and data dropouts. In particular, we introduce a
power-junction-network, a general class of input-output-wave-variable-network which
allows even a single controller (typically designed to control a single plant) to accurately