Protocol analyser for DeviceNet and CANbus
23 May 2001
Test & Measurement
Information from Contemporary Controls
Industry analysts have predicted that the growth rate of DeviceNet shows no signs of slowing because this device-level network offers key capabilities over hard-wired systems. However, what action does a plant take when a problem has occurred with the device network? Often conventional test equipment such as oscilloscopes and voltmeters may not be effective in troubleshooting a network problem. In this case, a network analyser is needed that interprets the data transmitted over the wires.
Contemporary Controls designed the DeviceNet analyser to assist in both the troubleshooting and development of DeviceNet networks. Traditionally, a controller area network (CAN) analyser has been used for network analysis since CAN is the underlying data link layer technology used by DeviceNet. In addition to being expensive, CAN analysers that only display CAN frames are difficult to use and often provide results that confuse and frustrate the troubleshooting process.
Although the DeviceNet analyser can display raw CAN frames, its main purpose is displaying DeviceNet protocol information in a meaningful format. The operator can view a connection sequence from master to slave and all the data being produced by either a master or a slave.
The DeviceNet analyser consists of a program on a CD and an intelligent PC Card adapter employed in a laptop computer operating Windows 95/98/ME. By integrating intelligence in the PC card adapter, DeviceNet traffic can be captured in realtime to minimise the possibility of missing messages. To remove clutter on the screen, it can filter particular group messages, MAC IDs or type I/O responses. Each message is time-stamped so traffic can be observed or saved to hard disk for off-line analysis.
For further information contact Electronic Products Design, (012) 665 9700.
Further reading:
Real-time monitoring for smart power distribution
CST Electronics
Test & Measurement
By leveraging high-precision measurement, high-speed wave-recording, and AI-enabled analytics, the InHand Wireless Overhead-lines System empowers power utilities to accurately identify line faults and perform comprehensive load analysis.
Read more...
Compact vector network analyser
Vepac Electronics
Test & Measurement
Siglent Technologies has introduced the SNA5000X-E Vector Network Analyzer, a compact, cost-effective solution engineered to meet essential RF testing needs, while maintaining dependable performance.
Read more...
Smart digital fibre sensor
Avnet Abacus
Test & Measurement
Panasonic Industry Europe has introduced the new FX-250 digital fibre sensor designed to support users in their daily working routines as effectively as possible.
Read more...
Compact USB spectrum analyser solution
Vepac Electronics
Test & Measurement
The HAROGIC SAN Series USB Spectrum Analyser is a compact USB-based spectrum analyser and receiver that covers a broad frequency range from 9 kHz up to 9 GHz.
Read more...
B&K Precision’s Series 1820B frequency counter
Comtest
Test & Measurement
These compact and versatile instruments are designed for a wide range of frequency measurement applications, from telecommunications to verification and validation of oscillators.
Read more...
How transition-edge sensors detect microwave radiation
Test & Measurement
The elegant interplay of superconductivity, thermal physics, and precision electronics makes TES technology a cornerstone of modern low-energy photon detection.
Read more...
Compact high precision magnetometer
Future Electronics
Test & Measurement
Bosch Sensortec has introduced the BMM350, a compact 16-bit, 3-axis magnetometer engineered to deliver high accuracy, low noise, and exceptional energy efficiency in space constrained designs.
Read more...
Ultra compact NTC thermistors
RS South Africa
Test & Measurement
Murata Manufacturing Co. has expanded its compact NCU03 series of NTC thermistors with two ultra-small 0603M devices tailored for consumer and automotive designs.
Read more...
Omniflex uses LoRaWAN to track water usage
Omniflex Remote Monitoring Specialists
Test & Measurement
Omniflex has helped New South Wales Ports improve its ability to track water usage by installing remote monitoring to 38 water meters at its Port Kembla site, sending the data to the NSWPorts web portal.
Read more...
Surviving the extremes: Understanding shock and vibration in MEMS sensors
Altron Arrow
Editor's Choice Test & Measurement
By considering factors such as mechanical headroom, damping, and system-level robustness, designers can ensure that the chosen sensor not only survives, but performs reliably over time.
Read more...
printer friendly version