Omron CP1H CPU UNITS - PROGRAMMING 05-2007, Operation Manual

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Part Names and Functions
Section 2-1
(3) Peripheral USB Port
Used for connecting to a personal computer for programming and moni-
toring by the CX-Programmer.
(4) 7-segment Display
The 2-digit 7-segment display shows CP1H CPU Unit status, such as
error information and the PV during analog adjustment.
Also, various codes can be displayed from the ladder program. (Refer to
6-3 7-Segment LED Display .)
(5) Analog Adjuster
By turning the analog adjuster, it is possible to adjust the value of A642
within a range of 0 to 255. (Refer to
6-2 Analog Adjuster and External
Analog Setting Input .)
(6) External Analog Setting Input Connector
By applying 0 to 10 V of external voltage, it is possible to adjust the value
of A643 within a range of 0 to 256. This input is not isolated. (Refer to
6-
2 Analog Adjuster and External Analog Setting Input .)
(7) DIP Switch
BKUP
(Yellow) Lit A user program, parameters, or Data Memory are
being written or accessed in the built-in flash mem-
ory (backup memory).
The BKUP indicator also lights while user programs,
parameters, and Data Memory are being restored
when the PLC power supply is turned ON.
Note Do not turn OFF the PLC power supply while
this indicator is lit.
Not lit Other than the above.
PRPHL
(Yellow) Flashing Communications (either sending or receiving) are in
progress through the peripheral USB port.
Not lit Other than the above.
No. Setting Description Application Default
SW1 ON User memory write-
protected (See note.) Used to prevent pro-
grams from being inad-
vertently overwritten by a
Peripheral Device (CX-
Programmer) onsite. OFF
OFF User memory not
write-protected.
SW2 ON Data automatically
transferred from
Memory Cassette at
startup. Used to enable pro-
grams, Data Memory, or
parameters saved on a
Memory Cassette to be
opened by the CPU Unit
at startup. OFF
OFF Data not transferred.
SW3 --- Not used. --- OFF
SW4 ON Used for peripheral
bus. Used to enable a Serial
Communications Option
Board mounted in Option
Board Slot 1 to be used
by the peripheral bus. OFF
OFF According to PLC
Setup.
ON
1
2
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