Meaning
An electronic coordination process maintains aligned time across independent systems on a network to establish a unified reference point. Implementing clock synchronization across industrial networks provides the baseline for legal metrology and cybersecurity logs required under the Cybersecurity Law of the People’s Republic of China. This practice ensures that events on the factory floor are recorded with identical timestamps across all machines to prevent discrepancies in logs.
It allows distributed sensors, controllers, and database instances to register the exact order of physical and electronic transactions during high volume production cycles.
Regulatory Mandate
National standards in the Chinese industrial sector dictate that primary information systems maintain time aligned with the official national time service. Coordinated universal time remains the reference point for industrial logging systems to satisfy municipal regulatory audits. Time discrepancies in ledger logs can invalidate digital proof during investigations by the Ministry of Industry and Information Technology.
Operational Protocol
Network systems distribute the reference time from a central master source to all terminal devices on the local network. Terminal machines adjust their internal oscillators dynamically to correct for network latency or local oscillator drift. Backup time servers are typically deployed within the local intranet to maintain synchronization when the external connection is lost.
Compliance Risk
Audits of industrial installations frequently check for time drift to detect unauthorized operations or manual overrides. Unsynchronized time stamps can lead to sequence errors in event records that prevent investigators from tracing the origin of batch defects. Precision assembly requires aligned clocks to coordinate robot movements across distributed systems.
