Mitsubishi MELSEC-Q Series User Manual page 417

10
FUNCTIONS AND PROGRAMMING
(c) Precautions for self station device access via MELSECNET/H module
When making access via a MELSECNET/H module, create the user program so
that interlocks are provided to validate data writing/reading to the self station
device.
Data becomes valid only when the following conditions are satisfied.
• Self module status (SB20) is OFF (Normal)
• Self baton pass status (SB47) is OFF (Normal)
• Self data link status (SB49) is OFF (In data link)
Even if the above conditions are not satisfied, however, write to/read from the self
station is normally terminated.
10.2 Programming Using Bus Interface Functions
10.2.4 Programming using bus interface functions
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