21
CP1E CPU Unit Hardware User’s Manual(W479)
•
Be sure that all the PLC terminal screws and cable connector screws are tightened to the torque
specified in the relevant manuals. The tightening torque for the terminals on the CP1W-
CIF11/CIF12 terminal block is 0.28 N·m Incorrect tightening torque may result in malfunction.
•
The following devices can be connected to pin 6 (+5V) on the built-in RS-232C port on the CPU
Unit or the RS-232C Option Board (CP1W-CIF01) mounted to the CPU Unit. Do not connect pin 6
to any other device.
•
RS-422A CJ1W-CIF11 Conversion Adapter
•
RS-232C / RS-422A NT-AL001 Conversion Adapter
•
NV3W-M
20L Programmable Terminal
•
Use the cables that are specified in the manual for each device. External devices or the CPU Unit
may be damaged if a commercially available RS-232C computer cable is used.
•
Do not pull on the cables or bend the cables beyond their natural limit. Doing either of these may
break the cables.
•
Do not place objects on top of the cables or other wiring lines. Doing so may break the cables.
z
Handling
•
To initialize the DM Area, back up the initial contents for the DM Area to backup memory using
one of the following methods.
•
Set the number of words of the DM Area to be backed up starting with D0 in the Number of CH
of DM for backup Box in the Startup Data Read Area.
•
Include programming to back up specified words in the DM Area to built-in EEPROM by turning
ON A751.15 (DM Backup Save Start Bit).
•
Check the ladder program for proper execution before actually running it on the Unit. Not checking
the program may result in an unexpected operation.
•
The ladder program and parameter area data in the CP1E CPU Units are backed up in the built-in
EEPROM backup memory. The BKUP indicator will light on the front of the CPU Unit when the
backup operation is in progress. Do not turn OFF the power supply to the CPU Unit when the
BKUP indicator is lit. The data will not be backed up if power is turned OFF and a memory error
will occur the next time the power supply is turned ON.
•
With a CP1E CPU Unit, data memory can be backed up to the built-in EEPROM backup memory.
The BKUP indicator will light on the front of the CPU Unit when backup is in progress. Do not turn
OFF the power supply to the CPU Unit when the BKUP indicator is lit. If the power is turned OFF
during a backup, the data will not be backed up and will not be transferred to the DM Area in RAM
the next time the power supply is turned ON.
•
Before replacing the battery, supply power to the CPU Unit for at least 30 minutes and then com-
plete battery replacement within 5 minutes. Memory data may be corrupted if this precaution is
not observed.
•
The equipment may operate unexpectedly if inappropriate parameters are set. Even if the appro-
priate parameters are set, confirm that equipment will not be adversely affected before transfer-
ring the parameters to the CPU Unit.
•
After replacing the CPU Unit, make sure that the required data for the DM Area, Holding Area, and
other memory areas has been transferred to the new CPU Unit before restarting operation.
•
Do not attempt to disassemble, repair, or modify any Units. Any attempt to do so may result in mal-
function, fire, or electric shock.
•
Do not drop the Unit or subject the Unit to unusual vibration and shock. Do so may result in failure
or fire.
•
Confirm that no adverse effect will occur in the system before attempting any of the following. Not
doing so may result in an unexpected operation.
•
Changing the operating mode of the PLC (including the setting of the startup operating mode).
•
Force-setting/force-resetting any bit in memory.
•
Changing the present value of any word or any set value in memory.
Summary of Contents for CP1E-E10DT-A
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