6 Parameter Settings and Functions 
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6.5.6  Enable/Disable Communications Writing 
This feature can change parameter settings stored in memory through communication 
with PC, GP, PLC, etc., in order to permit or prohibit writing. 
Setting Value  Description 
ENABLE  Parameter set/change enable via communication. 
DISABLE  Prohibit parameter setting or modification via communication. 
 
Group  Parameter  Range 
Factory 
Default 
Unit 
Option Setting Group 
(Communication Setting) 
Communication 
Write 
ENABLE, DISABLE  ENABLE  - 
 
 
Reading parameter settings is always permitted. 
  
6.5.7  USB-to-Serial Connection 
Data can be transmitted via a USB-to-serial connection. However, RS485 communication 
through a USB-to-serial connection is blocked by hardware.