Displays, Connections and Controls
Operating Manual XCx 300 / 500 / 540 Version 09/08
27
XCx 500 / 540
LED designation
Colour
Status
Meaning
RUN/ERROR
CPU status
OFF
No operating voltage
green
ON
Operating voltage ok, no error
red
ON
CPU not running (watchdog)
Flashing
CPU has detected a fatal error
PLC RUN
PLC status
OFF
PLC stop
yellow
ON
PLC running
Flashing
PLC running, but outputs shut down
(ready-for-operation relay released)
I/O 1
I/O 2
Combination I/O
yellow
OFF
Input / output not set
ON
Input / output set
CF
Compact Flash
green
ON
Memory access
red
ON
Access error
XRIO
RIO direct connection
green
ON
Operational
Flashing
Pre-Operational
red
Frame error
CAN NET
CAN network status
OFF
CAN state prepared
green
ON
CAN state operational
Flashing
CAN state pre-operational
red
ON
Bus Off
Flashing
CAN error
CAN MOD
CAN module status
green
ON
CAN stack initialized
Flashing
Invalid CAN configuration
red
ON
Control unit not ready, or serious error
Flashing
Error in controller
ETH
EtherNet network
green
Flashing
Network access
red
ON
Network error
10/100 Tx
EtherNet transmission rate
yellow
ON
Transmission rate 100 Mbit/s
OFF
Transmission rate 10 Mbit/s
Error messages are stored in the active error buffer and in the error
logbook. Error messages include error numbers and additional
information.
Use the <Ctrl+?> keys in the SCHLEICHER-Dialog software to read
the active error buffer and the log book.