3.1 Connection with PLC
The FX2N-4AD-PT unit can be connected to the PLCs as follows. Restrictions apply to the maximum
number of connectable units, depending on the DC24V/DC5V Power Supply capacities and the Main Unit/
Special Function Unit types. For details, refer to the respective PLC manual.
FX2N/FX3U : The maximum connectable units is 8.
FX3UC*1 : The maximum connectable units is 8.
To connect the FX2N-4AD with the FX3UC main unit, FX2NC-CNV-IF or FX3UC-1PS-5V is
required.
FX2NC : The maximum connectable units is 4.
To connect the FX2N-4AD-PT with the FX2NC main unit, FX2NC-CNV-IF is required.
FX1N : The maximum connectable units is 8.
FX0N : The maximum connectable units is 4.
*1 Up to 7 units can be connected to an FX3UC-32MT-LT PLC.
3.2 Special function block numbers
Other special units of blocks that use FROM/TO instructions, such as analog input blocks, analog output
blocks and high-speed counter blocks, can be directly connected to the main unit of the PLC or to the right
side of other extension blocks or units.
1
IN 0