Mitsubishi Electric MELSEC A Series Manual page 6

[System Design Precautions ]
• Do not bundle control lines or communication wires together with main circuit or power lines, or lay them
close to these lines.
As a guide, separate the lines by a distance of at least 100 mm, otherwise malfunctions may occur due
to noise.
When file register R that are outside the range are read, e.g. by a MOV instruction, the file register data
will become FFFF
are outside the range when designing programs
For details on instructions, refer to the Programming Manual.
[Cautions on Mounting]
• Use the PC in an environment that conforms to the general specifications in the manual.
Using the PC in environments outside the ranges stated in the general specifications will cause electric
shock, fire, malfunction, or damage to/deterioration of the product.
• Make sure that the module fixing projection on the base of the module is properly engaged in the
module fixing hole in the base unit before mounting the module.
Failure to mount the module properly will result in malfunction or failure, or in the module falling.
• Extension cables should be securely connected to base unit and module connectors. Check for loose
connection after installation
A poor connection could result in contact problems and erroneous inputs/outputs.
• Plug the memory card firmly into the memory card mounting connector. Check for loose connection after
installation. A poor connection could result in erroneous operation.
and use of this data will cause malfuncti o ns. Take care not to use file registers that
H
CAUTION
CAUTION