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[Design Precautions]
[Installation Precautions]
CAUTION
When the status control (remote RUN/STOP) of the PLC is performed from the external device,
select the "Always wait for OPEN" parameter set by an user in advance. (Select with the initial
timing setting (BFM#24 b8) in the operational setting.) When "Do not wait for OPEN" is selected,
the communication line at remote STOP is closed. The communication line cannot be reopened
on the PLC side after that, and the remote RUN from the external device cannot start.
CAUTION
Use the product within the generic environment specifications described in chapter 3 of this
manual.
Never use the product in areas with excessive dust, oily smoke, conductive dusts, corrosive gas
(salt air, Cl
2, H2S, SO2 or NO2), flammable gas, vibration or impacts, or exposed to high
temperature, condensation, or rain and wind.
If the product is used in such conditions, electric shock, fire, malfunctions, deterioration or
damage may occur.
When drilling screw holes or wiring, make sure cutting or wire debris does not enter the
ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
Be sure to remove the dust proof sheet from the PLC's ventilation port when installation work is
completed. Failure to do so may cause fire, equipment failures or malfunctions.
Connect the extension cables securely to their designated connectors.
Unsecured connection may cause malfunctions.