I/O Configuration and Field Wiring Fit
The FX3G-24MT/ES-A carries 14 local DC inputs (expandable to 16) that accept both sink and source field wiring — common 24 VDC proximity sensors and limit switches connect without polarity sorting. The 10 transistor sink outputs (expandable to 16) switch the DC negative rail, so loads share a common positive supply; this is the standard arrangement for high-speed transistor output to valve banks and small contactors.
Power Supply and Connection
The base unit is an AC-powered PLC (100–240 VAC typical for this series), so it needs a mains feed to the terminal block — no external DC power supply required for the logic side. All field wiring lands on the built-in terminal block; no special connector or backplane is needed, which keeps panel wiring straightforward.
