35
Board Components and their Functions
Section 2-2
CPM2B-32C
@
DT-D, CPM2B-32C
@
DT1-D12 32-point CPU Boards with Transistor Outputs
CPU Board Component Descriptions
1,2,3...
1.
Power Supply Terminals
Connect the power supply (24 V DC or 12 V DC) to these terminals.
2.
Input Connector
Connects the CPU Board to external input devices.
3.
Output Terminals/Connector
Connects the CPU Board to external output devices.
4.
PLC Status Indicators
These indicators show the operating status of the PLC, as shown in the fol-
lowing table.
5.
Input Indicators
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.
8. RS-232C port
5. Input indicators
6. Output indicators
3. Output connector
4. PLC status indicators
13. Battery
7. Peripheral port
10. Analog settings
11. DIP Switch inputs
2. Input connector
9. Communications
Switch SW201
9. Communications
Switch SW202
12. Expansion I/O
connector
1. Power supply
terminals
Indicator
Status
Meaning
PWR
(green)
Lit
Power is being supplied to the PLC.
Not lit
Power isn’t being supplied to the PLC.
RUN
(green)
Lit
The PLC is operating in RUN or MONITOR mode.
Not lit
The PLC is in PROGRAM mode or a fatal error has
occurred.
ERR
(red)
Lit
A fatal error has occurred. (PLC operation stops.)
Flashing
A non-fatal error has occurred. (PLC operation contin-
ues.)
Not lit
Indicates normal operation.
PERI
(orange)
Flashing
Data is being transferred through the peripheral port.
Not lit
The peripheral port is not in use.
COMM
(orange)
Flashing
Data is being transferred through the RS-232C port.
Not lit
The RS-232C port is not in use.
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