4. Troubleshooting (DeviceNet)
RC700 / RC90 Option Fieldbus I/O Rev.14 257
4. Troubleshooting
4.1 DeviceNet Troubleshooting
Exclusion
Every system has its special environment, conditions, specifications, and usages. This
guide is provided as a general reference for troubleshooting a DeviceNet network. Every
effort has been made to ensure the information is accurate. However, we do not guarantee
the complete accuracy of the information and thus we decline any liability for damages or
costs incurred by the use of this troubleshooting.
Before examining a problem on the network, please ensure that your established
DeviceNet system satisfies network specifications. (Refer to this troubleshooting and the
section 2.1.2 DeviceNet Network Construction.)
Tools
Prepare the following tools for troubleshooting.
Philips screwdriver
Flat-blade screwdriver
Tester
Using the Woodhead NetMeter (DeviceNet diagnostic tool) is a simple way to learn
physical status of the DeviceNet network. For details of NetMeter, see Woodhead’s Web
site (http://www.mysst.com/diagnostics/NetMeter.asp).