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Chapter 1 Introduction
7344/7334 Hardware User Manual 1-2 ni.com
Hardware
The high-performance capabilities of the 7344/7334 controllers are
the result of an advanced dual-processor architecture using a Motorola
MC68331 real-time 32-bit CPU combined with an Analog Devices
ADSP-2185 digitalsignal processor (DSP)and custom field programmable
gate arrays (FPGA). Its first-in-first-out (FIFO) bus interface and powerful
function set provide high-speed communications while off-loading
complex motion functions from the host PC for optimum command
throughput and system performance.
On the 7344 controllers, you can use full onboard programming to execute
up to 10 simultaneous motion programs in a preemptive, real-time
multitasking operating system environment.
The 7344 features motion profiles that are controlled with enhanced
PID/PIVff servo updates at 62 µs per axis. With all 7344/7334 controllers,
each axis has motion I/O for end-of-travel limit and home switch inputs,
breakpoint output, trigger input, and encoder feedback rates up to 20 MHz.
The 7344/7334 controller also has non-dedicated user I/O including 32 bits
of digital I/O and four analog inputs for ±10 V signals, joystick inputs, or
monitoring of analog sensors. Additionally, the 7344/7334 analog inputs
can provide feedback for loop closure.
RTSI
The 7344/7334 controller supports the National Instruments Real-Time
System Integration (RTSI) bus. The RTSI bus provides high-speed
connectivity between National Instruments products, including image
acquisition (IMAQ) and data acquisition (DAQ) products. Using the RTSI
bus you can easily synchronize several functions to a common trigger or
timing event across multiple motion, DAQ, or IMAQ devices.
What You Need to Get Started
To set up and use your 7344/7334 controller, you will need the following:
❑
One of the 7344/7334 controllers:
– PCI-7344
– PXI-7344
– FW-7344
– PCI-7334