GB/T 18756.3-2002

This standard specifies the specific Manufacturing Message Specification (MMS) requirements for industrial automation systems, defining how devices exchange real-time data and control commands in a manufacturing environment. It is applied in factory automation, process control, and discrete manufacturing industries to ensure interoperability between programmable logic controllers (PLCs), numerical controllers (CNCs), and other networked industrial equipment. The standard is used during system integration, device configuration, and conformance testing to verify that MMS implementations meet the required communication profiles.