Rockwell Automation 20-COMM-H RS485 HVAC Adapter FRN 2.xxx - Manual (Page 73)

20-COMM-H RS-485 HVAC Adapter User Manual
Publication 20COMM-UM009D-EN-P
Chapter 8
Troubleshooting
This chapter provides information for diagnosing and troubleshooting
potential problems with the adapter and network.
Understanding the Status
Indicators The adapter has four status indicators. They can be viewed on the adapter or
through the drive cover. See
Figure 8.1 .
Figure 8.1 Status Indicators (location on drive may vary)
Topic Page
Understanding the Status Indicators 8-1
PORT Status Indicator 8-2
MOD Status Indicator 8-2
NET A Status Indicator 8-3
NET B Status Indicator 8-3
Viewing Adapter Diagnostic Items 8-4
Viewing and Clearing Events 8-6
Item Status Indicator Description Page
➊ PORT DPI Connection Status 8-2
➋ MOD Adapter Status 8-2
➌ NET A Serial Communication Status 8-3
➍ NET B Serial Communication Traffic Status 8-3
➊
➋
➌
➍
➊
➋
➌
➍