User`s manual

FX communication
Diagnostics 12
12-8
12.7 Using Optional Programming Port
12.7.1 FX
1S
, FX
1N
and FX
2N(C)
earlier V2.00
1 ) Make sure that the communication format is set to the initial status (D8120 = K0).
Using a peripheral equipment, check the communication setting by parameters. If a non-
procedure protocol (RS instruction) or dedicated protocol is selected in the setting, clear the
setting using the peripheral equipment.
2 ) When an RS instruction is used in the program, delete the RS instruction, turn off the power
of the programmable controller, then turn it on again.
12.7.2 FX
2N
, FX
2NC
whose version is V 2.00 or later
If an RS instruction is used in the program, make sure that it is not executed. If it is executed, the
RS instruction has the priority.