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3.37.1 Setting method
Set the write-protected range in the device tab of the PLC parameter.
Selecting the "Disable device write from external" checkbox allows input of the write-protected range (Write Protection
Start/End). ( Page 446, Appendix 1.2.8)
To input the write-protected range of the file register, extended data register, and extended link register, set the file
register file to "Use the following file" in the PLC file tab of the PLC parameter. ( Page 440, Appendix 1.2.3)
● Setting a file password to the user parameter file protects the setting of the write-protect function for device data (from
outside the CPU module).
● Whether the write-protect function for device data (from outside the CPU module) is enabled or not can be checked in
SM214 (Write-protect status for device data (from outside the CPU module).
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