Mitsubishi LJ61BT11 User Manual page 4

[Design Precautions]
•
Do not write any data to the "system area" of the buffer memory in each intelligent function
module.
Also, do not turn on any "use prohibited" signal that is output from the CPU module to the
intelligent function module.
Writing data to the "system area" or outputting a "use prohibited" signal may cause malfunction
of the programmable controller system.
•
When setting auto refresh parameters, specify "Y" for the remote output RY refresh devices.
Specifying any other than "Y" (for example, M or L) will hold the previous device status in the
case of a CPU stop.
For how to stop a data link, refer to Section 8.3.8.
•
Disconnection of a CC-Link dedicated cable may make the line condition unstable, causing
communication errors on multiple stations on the network.
Configure an interlock circuit in the program so that the system will operate safely even if these
communication errors occur on multiple stations.
Failure to do so may result in an accident due to an incorrect output or malfunction.
[Design Precautions]
•
Do not install the control lines or communication cables together with the main circuit lines or
power cables.
Keep a distance of 100mm or more between them.
Failure to do so may result in malfunction due to noise.
[Installation Precautions]
• Shut off the external power supply for the system in all phases before mounting or removing the
module.
Failure to do so may result in electric shock or cause the module to fail or malfunction.
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WARNING
!
CAUTION
!
WARNING
!
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