Rockwell-automation 1788-CNCHKR ControlNet NetChecker User Manual Manual de usuario descargar pdf (Pagina 20)

20 ControlNet NetChecker

Rockwell Automation Publication 1788-UM001B-EN-P - August 2012

Additional Tips

Use these tips to troubleshoot intermittent problems and maintain continuous network

monitoring.

Intermittent Problems

Various intermittent problems are often are caused by the BNC connectors on the trunk cable,

such as the center pin not crimped causing an unreliable contact. The NetChecker in Diagnostic

mode is a valuable tool to help locate such problems. Read the NetChecker while subjecting each

trunk connector or tap to a moderate mechanical stress. If faults are reported, the BNC

connector has not been mounted correctly and must be replaced.

Continuous Network Monitoring

To provide continuous monitoring, the NetChecker powered by an AC wall adapter can be

installed temporarily or permanently on the network. The NetChecker will signal immediately

any degradation of the signal quality at the media level even if the network is still performing

correctly. The NetChecker should be set in Diagnostic mode.

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Rockwell-automation 1788-CNCHKR ControlNet NetChecker User Manual Manual de usuario Pagina 20