Chapter1 Introduction
7344/7334Hardware 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-time32-bit CPU combined with an Analog Devices
ADSP-2185digital signal processor (DSP) and custom field programmable
gatearrays (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.
Onthe 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 featuresm otion profilesthat are controlled with enhanced
PID/PIVff servo updates at 62 µs per axis. With all 7344/7334 controllers,
each axis hasm otion I/O for end-of-travellimit and home switch inputs,
breakpointoutput, trigger input, and encoder feedback rates up to 20 MHz.
The7344/7334 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 providefeedback 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 acquisiti on (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 StartedTo 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