ARCNET analyser displays more than transmitted packets
18 July 2001
Test & Measurement
Contemporary Controls' newest generation of ARC Detect ARCNET network analysers will allow engineers to capture and decode low-level messages that controllers use to initiate and control a packet transmission. ARCNET is referred to as an embedded networking technology frequently found in diverse applications including industrial automation. A network analyser is used to examine the data sent over the network.
The ARCNET Network Analyzer (ANA) provides the ability to view all frame types including invitations to transmit (ITT), free buffer enquiries (FBE), acknowledgements to messages (ACK), negative acknowledgements (NAK), as well as the ability to view the transmitted ARCNET packets (PAC).
ARCNET is a token-passing network and ANA will display the tokens and the transmission time. The ANA has a 2,5 ms timer resolution for all recorded events and will operate at the 10 Mbps upper limit of ARCNET.
"The ANA has the edge because no other standard tool on the market exhibits such diagnostic capability," says Bennet Levine, Senior Engineer. "Most analysers only display transmitted packets because they incorporate an ARCNET controller chip for capturing packets. The ANA does not use an ARCNET chip but reconstructs complete ARCNET activity by observing the symbols on the cable. For example, the occurrence of an ACK or NAK cannot be determined by just using an ARCNET chip. The ANA is ideal by combining analysis functionality and a simple interface with Windows presentation."
The product operates on a standard PC or a notebook computer with a USB interface. It directly accommodates coaxial star and bus, twisted-pair and DC or AC EIA-485. Data rates can range from 156 Kbps to 10 Mbps.
The ANA does not rely on a PC for realtime acquisition. The ANA's USB module contains its own CPU, memory and custom triggering hardware to facilitate capture of all transmissions. It is viewed as a nescessary tool for developing and troubleshooting ARCNET networks according to the manufacturer.
For further information contact Electronic Products Design, (012) 665 9700.
Further reading:
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...
Advanced pressure monitoring sensor
EBV Electrolink
Test & Measurement
The Infineon KP497 is an advanced, highly integrated digital pressure sensor designed for demanding automotive and industrial applications, with a particular focus on battery management systems.
Read more...
Slimline 150 W bench PSU
Vepac Electronics
Test & Measurement
The PeakTech P 6222 is the company’s new, slim laboratory power supply that offers precisely adjustable output values of 30 V and 5 A with a continuous power output of 150W.
Read more...
Redefining edge intelligence in RF analysis
Vepac Electronics
Test & Measurement
The HAROGIC PXR Series bridges the gap between benchtop-grade RF performance and high-performance edge computing.
Read more...
Otto Wireless appointed as sole agent for Dragino Technology
Otto Wireless Solutions
Test & Measurement
Dragino is a globally recognised leader in LoRaWAN and Internet of Things products and solutions, and is known for delivering reliable, cost-effective hardware.
Read more...
AI-ready rugged spectrum analysis for the field
Vepac Electronics
Test & Measurement
The HAROGIC PXR Series is a rugged, benchtop-grade spectrum analyser and an AI-ready open platform in a single portable instrument.
Read more...
Digid announces its nanoscale temperature and force sensors are ready for mass deployment
Test & Measurement
Digid, a pioneer of nanoscale sensing technology, recently announced that its patented printed electronics fabrication technology has been fully qualified for volume production of temperature and force sensors as small as 1 µm long.
Read more...
printer friendly version