Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 18)

1–6 Overview of FLEX I/O and Your PROFIBUS Adapter Module
Publication 1794ĆUM057B-EN-P - November 2001
The adapter module consists of the following components:
•
two diagnostic indicators
•
PROFIBUS DP network connector
•
24V dc power wiring connection terminals
•
two node address switches
PROFIBUS
DP Network
Connector
STATUS indicator
(green/red)
PROFIBUS indicator
(green/red)
Node Address
Switches
24V dc wiring
Connection
Terminals
Flexbus
Connector
20627
Diagnostic Indicators
Diagnostic indicators are located on the front panel of the adapter
module. They show both normal operation and error conditions in
your FLEX I/O system. The indicators are:
•
Device status (STATUS)
•
Communication link status (PROFIBUS)
Upon power-up, the adapter goes to an initialization state and
performs a self-test (memory check, data memory clear, CRC on
code). The indicators also go through a self-test sequence. If a failure
occurs, the adapter transitions to a faulted state and waits for reset
(cycle power). Otherwise, the adapter begins monitoring the network
(run state) for messages.
Chapter 5 describes the diagnostic indicators and how to use them
for troubleshooting.
More Information...
PROFIBUS Adapter
Components