The National Instruments NI 9467 is a GPS synchronization module for CompactRIO and CompactDAQ systems. It provides a GPS time reference and pulse per second signals for synchronized measurement and control. The module is used in distributed systems that require accurate time alignment across multiple locations.
Many test and monitoring systems need time synchronized data from several nodes. The NI 9467 uses GPS signals to provide a common time reference. Engineers can timestamp measurements and align events across chassis. This supports applications such as power system monitoring, structural health monitoring, and distributed data acquisition.
GPS Time Reference
The module receives GPS signals and provides time information to the system. Engineers can use this time reference to timestamp data and synchronize events. The module should be installed with a clear view of the sky or a suitable GPS antenna location.
Antenna placement and cable routing affect signal reception. Engineers should verify satellite visibility and signal quality. Documentation of time settings helps repeatability.
Pulse Per Second Output
The NI 9467 provides a pulse per second signal for timing alignment. The pulse can be used to synchronize acquisition and control across modules or chassis. Engineers should configure timing tasks to use the pulse correctly.
Timing accuracy depends on signal reception and system configuration. Calibration and verification help maintain confidence in synchronized measurements.
CompactRIO and CompactDAQ Integration
The module is a C Series module and operates in compatible CompactRIO and CompactDAQ systems. It can be combined with analog input, digital I O, and communication modules. This integration supports synchronized data acquisition in one chassis.
For distributed systems, multiple chassis can use GPS time to align data. Network communication and data storage should be planned for the application.
Applications
The NI 9467 is suited to power system monitoring, structural monitoring, distributed test, and industrial data acquisition. It supports time synchronized measurement across locations.
Installation and Maintenance
Installation requires a compatible C Series slot, a GPS antenna, and proper cabling. The antenna should be placed for good satellite reception. The chassis should provide adequate cooling and protection.
Maintenance includes checking antenna connections, verifying time status, and reviewing software configuration. Documentation helps troubleshooting.
Summary
The National Instruments NI 9467 GPS Synchronization Module provides GPS time reference and pulse per second signals for CompactRIO and CompactDAQ systems. It supports synchronized distributed measurement and control. The NI 9467 is a practical module for engineers who need accurate time alignment across systems.
