Mitsubishi Electric QJ71MT91 User Manual page 6

Modbus/tcp interface module
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 Before performing online operations (especially, program modification, forced output or
operating status change) by connecting a peripheral device to a running CPU, read the manual
carefully and ensure the safety. Incorrect operation will cause mechanical damage or accidents.
 Never disassemble or modify the module. This may cause breakdowns, malfunctions, injuries or
fire.
 When using a wireless communication device such as a cellular phone, keep a distance of 25cm
(9.85 inch) or more from the programmable controller in all directions. Failure to do so can
cause a malfunction.
 Before mounting/dismounting the module, be sure to shut off all phases of the external power
supply used by the system. Failure to do so may cause module failure or malfunctions.
 After the first use of the product, do not mount/remove the module to/from the base unit more
than 50 times ((IEC 61131-2/JIS B 3502 compliant).
Failure to do so may cause malfunction.
 Before handling the module, touch a conducting object such as a grounded metal to discharge
the static electricity from the human body.
Failure to do so may cause a failure or malfunctions of the module.
[Operating Precautions]
 When changing data and operating status, and modifying program of the running programmable
controller from an external device such as a personal computer connected to an intelligent
function module, read relevant user's manuals carefully and ensure the safety before operation.
Incorrect modifications of data, programs and operating status may cause system malfunctions,
damages to the machines, or accidents.
[Disposal Precautions]
 Dispose of this product as an industrial waste.
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CAUTION
CAUTION
CAUTION
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