PCI-7342 运动控制器设备

Description

PCI-7342 运动控制器设备

PCI-7342 运动控制器设备

2-axis stepper/servo motion controller device – PCI‑7342 is suitable for both simple and complex motion applications. PCI‑7342 includes two processors and a real-time onboard system with multi-axis interpolation. PCI‑7342 provides hybrid motion trajectory control and fully coordinated circular, linear, point-to-point, gear, and vector space control for embedded motion operations or host-centric programming environments.
PCI‑7342 also provides contour control for complex movements. The on-board CPU uses an embedded real-time operating system to implement event-based multi-task control. With this approach, multiple motion control programs and processes can run synchronously on the controller, independent of the host PC, and without external interaction, unless the host program or user is configured to actively initiate the interaction.

Featured with a real-time embedded OS and multiaxis interpolation, the National Instruments PCI-7342 (Part Number: 778916-02) is a 2-axis Motion Controller Device for servo/stepper motors.  This model offers fully coordinated gearing, linear, and circular control. For complex moves, it can also provide a contouring capability. The integrated CPU uses an embedded operating system with event-oriented multitasking control. With this configuration, multiple motion control programs can be operated by the Controller efficiently without any lags and with zero outside interaction unless initiated by the user or host program. The device has a PID update rate of 62.5 to 500 µs/sample, and a maximum step frequency of 4 MHz. It has an encoder input rate of 20 MHz, and has a power consumption of 5.7W.

The NI PCI-7342 has 32 digital I/O channels. Each of these general purpose I/O lines can be accessed through a separate, dedicated digital I/O connector (68-pin). The 32-bit digital I/O port is configured as four 8-bit digital I/O ports. All digital I/O lines on this Motion Controller have programmable polarity and direction. Each output circuit can source and sink up to 24 mA. This model offers two PWM (pulse width modulation) outputs through its digital I/O connector. These PWM outputs are used to generate software controller periodic waveforms, and have a frequency of 32 kHz each.