This invention discloses a PDA
computer network isolation
topology optimization system and method in the field of
network communication. The
system includes a network switching unit comprising a backbone switch and an isolation switch, a
control unit comprising an industrial controller, a
terminal unit comprising at least one PDA computer, and a fault diagnosis unit comprising a fault
verification module configured within the isolation switch and the backbone switch. The static
IP address of the PDA computer is located in the firewall
whitelist of the industrial controller. The PDA
computer network isolation
topology optimization system provided by this invention achieves physical isolation between the PDA computer and the real-time
industrial Ethernet bus by setting up an isolation switch between the PDA computer and the backbone switch. This ensures fault isolation when the PDA computer fails, preventing
impact on other devices. Furthermore, the fault
verification module within the isolation switch and the backbone switch allows for rapid fault location, improving fault repair efficiency.