Rockwell Automation 1799-DASCII DeviceNet Serial Interface - Manual (Page 32)

32 DeviceNet Serial Interface Module
Publication 1799-IN012B-EN-P - July 2008
Status Indicators
The 1799-DASCII module has two indicators that provide visual status information
about the module and the DeviceNet network. Refer to the Module Status and
Network Status tables to interpret the status indications.
The 1799-DASCII module has two RS-232 activity indicators: one for transmit (TX)
and one for receive (RX). Each of these indicators illuminates when data
communication is active on the respective data lines.
Module Status Indicator (labeled MS)
Indicator Module Status Description
Off No power There is no power through the DeviceNet network.
Solid green Device operational 1799-DASCII module is operating normally.
Flashing green Device in standby 1799-DASCII module needs commissioning (for
example, attempting autobaud).
Flashing red Minor fault Recoverable fault.
Solid red Unrecoverable fault Replace 1799-DASCII module.
Flashing red/green Device self-testing 1799-DASCII is in self-test mode.
Network Status Indicator (labeled NS)
Indicator Network Status Description
Off No power or not online 1799-DASCII module has no power, has not completed the
Dup_MAC_ID test, or needs commissioning.
Solid green Online, connected 1799-DASCII module operating correctly.
Flashing green Online, not connected 1799-DASCII module is online but is not allocated to a master.
Flashing red Connection time-out One or more I/O connections are timed out.
Solid red Critical link failure 1799-DASCII module detected an error that makes it
incapable of communicating on the link (bus off or duplicate
MAC ID).
Serial Port Indicator (labeled TX and RX)
Indicator Serial Port Status Description
Off No data communication active 1799-DASCII module has no active data communication on
the data line.
On Data communication active 1799-DASCII module has active data communication on
the data line.