Omron CS1W User Manual page 8

PRECAUTIONS
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Application Precautions
Observe the following precautions when using the USB-Serial Conversion Cable.
•These cables are designed specifically to connect a personal computer to an OMRON
PLC or PT. Do not use them to connect any other devices and do not use a
commercially available USB-serial conversion cable in place of these cables. Improper
usage of these cables may result in damage to external devices, the PLC, or the PT.
•Do not attempt to disassemble, repair, or modify any Units.
•Touch a grounded metal object to discharge any static electricity before connecting the
Conversion Cable to the PLC's connector, a PLC Connecting Cable, or the personal
computer's USB port.
•To avoid malfunctions due to noise, do not route the Conversion Cable parallel or close
to a high-tension power line.
•Tighten the D-sub connector screws to a torque of 0.4 Nm.
•Either turn OFF the power supply to the computer or disconnect the cable from the
USB connector before setting the DIP switch.
•Always lock any connectors that are equipped with locking mechanisms.
•Do not place anything on the cable.
•Do not bend the cable past it's normal bending radius or pull on the cable.
•Touch the Unit only after touching a grounded metal object to release static electricity
from your body.
•Disconnect or connect the cable only after confirming that communications are not in
progress.
•Do not quickly and repeatedly connect and disconnect the USB connector. Doing so
may cause the computer to malfunction.
•It may take some time for the computer to detect the cable after the cable is connected.
This is not a malfunction.
•Do not connect the RS-232C connector on the CS1W-CIF31 Cable (D-sub type)
directly to the RS-232C or RS-422/485 connector on the PLC. The cable may
malfunction.
•Do not connect this cable to a USB hub; connect it directly to a USB connector on the
computer.
The cable may malfunction.
•Do not extend the USB portion of this cable with an extension cable. The cable may
malfunction.
•Set the communications port (COM port) number used by the software to the
communications port (COM port) number allocated to the Conversion Cable.
Caution Perform wiring so that the power supply wires are not exposed and do not come into
contact with any metal parts. Contact with metal parts may cause a fire.
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