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44
Unit Components
Section 2-2
Connects the CPU Unit to the DeviceNet transmission line. Use the con-
nector included with the CPU Unit or an equivalent connector to connect
to the DeviceNet transmission line.
5.
PC Status Indicators
The following indicators show the operating status of the PC.
The following indicators show the status DeviceNet communications and
appear on the CPM2C-S100C-DRT and CPM2C-S110C-DRT only.
Indicator
Status
Meaning
PWR
(green)
ON
Power is being supplied to the PC.
OFF
Power isn’t being supplied to the PC.
RUN
(green)
ON
The PC is operating in RUN or MONITOR mode.
OFF
The PC is in PROGRAM mode or a fatal error has
occurred.
ERR/ALM
(red)
ON
A fatal error has occurred. (PC operation stops.)
Flashing
A non-fatal error has occurred. (PC operation continues.)
OFF
Indicates normal operation.
SD
(yellow)
Flashing
Data is being transmitted via CompoBus/S.
OFF
Data isn’t being transmitted via CompoBus/S.
RD
(yellow)
Flashing
Data is being received via CompoBus/S.
OFF
Data isn’t being received via CompoBus/S.
ERC
(red)
Flashing
A CompoBus/S communications error occurred.
OFF
A CompoBus/S communications error hasn’t occurred.
COMM
(yellow)
Flashing
Data is being transferred via the communications port
(peripheral or RS-232C).
OFF
Data isn’t being transferred via communications port.
Indicator
Color
Status
Meaning
MS
Green
ON
Normal status
Flashing
Incomplete settings (reading switch settings)
Red
ON
Fatal hardware error (watchdog timer error)
Flashing
Non-fatal error such as incorrect switch settings
---
OFF
•
Power is not being supplied.
•
Waiting for initialization to start
•
Reset in progress
NS
Green
ON
Online/Communications established
(Normal network status when communications
have been established)
Flashing
Online/Communications not established
(Normal network status when communications
haven’t been established)
Red
ON
Fatal communications error (The Unit detected
an error indicating that network communications
are disabled.)
•
Node number duplication
•
Bus off error detected
Flashing
Non-fatal communications error
(Communications timeout)
---
OFF
Offline/Power supply OFF
Waiting for completion of the node number dupli-
cation check in the Master.
•
Incorrect switch settings
•
Power supply OFF
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