The design of network architecture needs to respond to the customer's URS and risk assessment of automation systems, comprehensively consider and determine the most suitable control scheme for the customer's process system.

· Considering the safety of production data under GMP process, redundancy of data servers and C/S control architecture are adopted, ensuring redundant backup of production data while avoiding direct operation by operators on the servers.

· To address risks related to controllers and control modules, the network architecture employs redundant controller design, and the communication link between CPU and IO slave stations can choose either PROFIBUS-DP redundancy or PROFINET ring redundancy to enhance control link stability.

· The network architecture considers system scalability and reserves remote data interfaces (WINCC-OPC DA/UA).

· For ease of maintenance operations in the later stages of automation system, IO remote modules use ET200MP or ET200SP, supporting hot swap without shutdown for module replacement.