Product Overview
The National Instruments NI 9264 spring terminal version is a 16 channel analog output module for CompactDAQ and CompactRIO systems. It provides 16 bit resolution and a plus or minus 10 V output range. The spring terminal connection option supports secure wiring without separate terminal blocks in many setups. The module is designed for control, stimulus, and waveform generation applications.
As a C Series module, the NI 9264 can be combined with analog input, digital input and output, counter, and communication modules in the same chassis. This modular approach allows engineers to build compact systems that combine measurement, control, and signal generation. The spring terminal version is useful when direct field wiring to the module is preferred.
Analog Output Performance
The NI 9264 provides 16 independent analog output channels with 16 bit resolution. The 16 bit resolution supports fine adjustment of output voltage for precise control of actuators, valves, power supplies, and electronic test stimuli. The plus or minus 10 V range covers common industrial and laboratory signal levels. The module is designed to drive loads within its specified output current limits.
Each channel can update at up to 25 kS/s. Simultaneous updates across channels help maintain phase relationships between output signals, which is useful in multi axis control, quadrature signal generation, and coordinated stimulus applications. The module can generate DC levels, ramps, sine waves, and arbitrary waveforms when used with appropriate software and system timing.
Spring Terminal Connection
The spring terminal version of the NI 9264 provides a wiring interface that accepts signal wires directly at the module. Spring terminals can reduce installation time because they do not require screw tightening. They also provide a stable connection in environments where vibration may be present. Engineers should use wire sizes and strip lengths within the module specifications for reliable connection.
Proper wiring practice is important for analog output systems. Shielded cables can help reduce noise coupling when output signals travel to sensitive equipment. Separating analog output wiring from high current power cables also helps maintain signal quality. The spring terminal connection supports flexible system wiring while keeping the module compact.
Isolation and System Integration
The NI 9264 includes isolation between the output channels and the system backplane. Isolation helps protect the chassis and host system from transient voltages and ground potential differences that can occur in industrial environments. This makes the module suitable for connecting to external equipment that may not share the same ground as the CompactDAQ or CompactRIO system.
The module is supported by NI-DAQmx driver software. It can be programmed with LabVIEW, LabWindows/CVI, Measurement Studio, and other NI-DAQmx compatible development environments. Engineers can configure output ranges, update rates, and waveform generation through standard software tools. The module can also be synchronized with other C Series modules for coordinated measurement and control.
Typical Applications
Analog stimulus for electronic test and validation
Valve, actuator, and damper control in test benches
Multi channel waveform generation for control system testing
Setpoint generation for power supplies and motor drives
Embedded control systems using CompactRIO
CompactDAQ systems with direct spring terminal wiring
The NI 9264 spring terminal version provides 16 channels of 16 bit analog output with 25 kS/s per channel updates and a plus or minus 10 V range. Its spring terminal wiring, isolation, and C Series integration make it a practical module for control and stimulus tasks in CompactDAQ and CompactRIO systems.
