Owner's manual

6 DH485/RS-232C Interface Module
Publication 1747-IN006B-EN-P - October 2005
Set the Module Jumpers
The module have three sets of jumpers that you need to set. Jumper JW1 lets you
select the communication interface for the CONFIG port. Jumper JW2 lets you
select the communication interface for the DF1 port. Jumper JW4 lets you select the
LED Color Status Indication
ACT Green
ON
(1)
The module is receiving power from the backplane, is configured
correctly, and is in the Run mode.
Flashing The module requires configuration or is being configured.
OFF The module is not receiving power from the backplane. A fault
condition exists.
485 Green ON Port DH485 on the module is active for communication.
OFF Port DH485 on the module is not active for communication or the
module is in Configuration mode.
CFG Green Flashing The CONFIG port on the module is transmitting or receiving
signals.
OFF The CONFIG port on the module is not transmitting or receiving
signals.
DF1 Green Flashing The DF1 port on the module is transmitting or receiving signals.
The flashing may occur rapidly so the LED indicator appears to be
on.
OFF The DF1 port on the module is not transmitting or receiving signals
or the module is in Configuration mode.
FAULT Red ON A system problem was detected during background diagnostics.
Cycle power to reset. Contact your local Rockwell Automation
representative if the LED indicator remains on.
OFF No system problems are detected during background diagnostics.
BA LOW Red ON The voltage of the battery that backs up RAM is low. A new
battery is needed.
OFF The voltage of the battery that backs up RAM is at an acceptable
level.
H/D Amber ON The module is configured for half-duplex DF1 protocol (local or
remote).
OFF The module is not configured for half-duplex DF1 protocol.
F/D Amber ON The module is configured for full-duplex DF1 protocol.
OFF The module is not configured for full-duplex DF1 protocol.
(1) Indicates normal operation after the module has been configured.