Delta RMC151 - Manual (Page 648)

RMC70/150 and RMCTools User Manual
Cable Null modem
Protocol Allen-Bradley DF1 Full-Duplex,
with CRC error detection
Settings 38400 baud, 8 data bits, no parity,
1 stop bit, no handshaking
LEDs
Controller LED
This bi-color (red/green) LED has the following states:
State Description
Steady Off No power.
Steady Green RUN Mode
Flashing Green
(Slow)
PROGRAM Mode
Flashing Green
(Fast)
Updating Flash or a controller restart is pending.
Flashing Red The device is in the loader. This should occur briefly when the
controller is powered up. If this occurs during normal operation,
an error has occurred in the controller and it must be reset.
Cycle power to the RMC70 to reset it.
Causes:
o Power Interruption
In certain cases, a power interruption to the RMC may
cause it to go into the loader. Even a very short
interruption, such as 20 msec, can cause problems. This
type of interruption cannot be measured with a standard
multimeter. For accurate power supply verification, use
an oscilloscope or similar high-speed monitoring device.
o Firmware Bug
Certain firmware bugs will cause the RMC to go into the
loader. If this occurs, and power interruptions have
been ruled out, contact Delta Technical support.
Steady Red Non-Recoverable major fault. That is, the module cannot boot at
all, not even into the loader. The module will likely need to be
shipped back to Delta for repair. Some things to try to get it
into the Loader (to be done at the direction of technical support)
include removing all expansion and axis modules, and setting
the Force to Loader jumper under the axis module.
Net LED
The NET LED is located below the Controller LED on a gray background.
State Description
Steady Off The RMC's PROFIBUS channel is not communicating control data
with the PROFIBUS master. See the Troubleshooting PROFIBUS
topic for possible reasons.
Steady Green The RMC's PROFIBUS channel is properly communicating control
data with the PROFIBUS master.
During normal operation, this LED should be steady with no
flickering.
628 Delta Computer Systems, Inc.