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370 3G3RV-P10ST@-E
CPU unit component descriptions
1. DIP switch
•
RS-232C and peripheral port settings
• Operating mode at startup
Pin 2 determines the operating mode at startup only if there isn't a
programming device connected to the peripheral port.
2. Input indicators (yellow)
The input indicators are lit when the corresponding
input terminal is ON. The status of an input indicator
will reflect the status of the input even when that input
is being used for a high-speed counter.
Note: 1. When interrupt inputs are used in interrupt input mode, the in-
dicator may not light even when the interrupt condition is met
if the input is not ON long enough.
2. Input indicators will reflect the status of the corresponding in-
puts even when the PLC is stopped, but the corresponding in-
put bits will not be refreshed.
3. Output indicators (yellow)
The output indicators are lit when the corresponding output terminal is
ON. The indicators are lit during I/O refreshing. The status of an output
indicator will also reflect the status of the corresponding output when
the output is being used as a pulse output.
4. High-speed counter indicators (yellow)
The indicators are lit when the corresponding input
terminal is ON.
5. PLC status indicators
The following indicators show the operating status of the PLC.
Operation
7. Communications switch
6. Communications port
8. DeviceNet port
9. RS-422/485 port
10. Terminating resistance switch
11. CompoBus/S port
12. Digital I/O and
encoder interface
13. FE connection
1. DIP switch
16. DeviceNet
node address
14. Battery15. Low battery detection switch
17. DeviceNet indicators
18. CompoBus/S indicators
5. PLC status indicators
4. High-speed counter indicators
3. Output indicators
2. Input indicators
Pin 1 Effective port settings
OFF
(default)
The ports operate according to the settings in the
PLC setup.
RS-232C port settings: DM 6645 to DM 6649
Peripheral port settings: DM 6650 to DM 6654
ON The ports operate with the standard communications
settings.
Programming device
connected
Startup mode with
Pin 2 OFF (default)
Startup mode with
Pin 2 ON
None RUN mode PROGRAM mode
Programming console Operating mode set on the programming console's
mode switch
Other device PROGRAM mode
1
2
3
4
ON
OUT0
OUT1
OUT2
OUT3
IN0
IN1
IN2
IN3
IN4
IN5
Indicator Status Meaning
PWR
(green)
ON Power is being supplied to the unit
OFF Power isn't being supplied to the unit
RUN
(green)
ON The PLC is operating in RUN or
MONITOR mode
OFF The PLC is in PROGRAM mode or
a fatal error has occurred.
ERR/ALM
(red)
ON A fatal error has occurred.
(PLC operation stops.)
Flashing A non-fatal error has occurred.
(PLC operation continues.)
OFF Indicates normal operation.
COMM1
(yellow)
Flashing Data is being transferred via the
peripheral or RS-422/485 port.
OFF Data isn't being transferred via
communications port.
COMM2
(yellow)
Flashing Data is being transferred via the
RS-232C port
OFF Data isn't being transferred via
communications port.
A
B
Z
PWR
RUN
ERR/ALM
COMM1
COMM2
Y203-EN2-02-Katalog.book Seite 370 Mittwoch, 24. Mai 2006 2:22 14