Omron SYSMAC CPM1 Operation Manual page 40

Unit Components
24
7. PC Status Indicators
These indicators show the operating status of the PC, as shown in the fol-
lowing table.
Indicator Status
POWER (green) ON
OFF
RUN (green)
ON
OFF
ERROR/ALARM
ON
(red)
Flashing A non-fatal error has occurred. (PC operation
OFF
COMM (orange) ON
OFF
8. Input Indicators
These indicators are lit when the corresponding input terminal is ON.
When a fatal error occurs, the input indicators change as follows:
Fatal error
CPU Unit error or I/O bus error
Memory error, no END instruction
error, or system error
9. Output Indicators
These indicators are lit when the corresponding output terminal is ON.
10. Analog Volume Controls
Setting these controls sets the contents of IR 250 and IR 251 from 0 to 200.
11. Peripheral Port
Connects the PC to a Peripheral Device, RS-232C Adapter, or RS-422
Adapter.
12. Expansion I/O Unit Connector
Either one Expansion I/O Unit or one Analog I/O Unit can be connected to a
CPM1-10CDR-j/20CDR-j/30CDR-j
Expansion I/O Units and/or Analog I/O Units can be connected in any com-
bination to a CPM1-30CDR-j-V1 CPU Unit.
Meaning
Power is being supplied to the PC.
Power isn't being supplied to the PC.
The PC is operating in RUN or MONITOR mode.
The PC is in PROGRAM mode or a fatal error
has occurred.
A fatal error has occurred. (PC operation stops.)
continues.)
Indicates normal operation.
Data is being transferred via the Peripheral Port.
Data isn't being transferred via the Peripheral
Port.
Input indicators
Turn OFF.
The indicators will change with the
status of the input signal, but input
status will not be updated in memory.
CPU Unit. Also, up to three
Section 2-2