Certain protocol parameters used by the Mitsubishi A-Series Serial Communications enabler have been preset. They are:
Message Wait Time
Preset value = 0
Unit Address - 0 indicates the programmable controller's CPU. This is not the same as the unit number (that is, node number) which is configurable.
Preset value = FF
Default PC CPU number used for addresses entered as <station number> only.
If <station number>.<PC CPU number> format is used, then the entered <PC CPU number> is used instead of FF.
About Mitsubishi A-Series Serial Communications.