CPU unit with 36 DI / 24 transistor DO
The Omron CP2E-N60DT1-D is a PLC CPU from the CP2E series, fitted with 36 digital inputs at 24 VDC and 24 transistor-sink outputs. It carries an Ethernet port for direct controller communication and runs ladder logic from a 10000-step program capacity. Expandable up to 180 I/O points via optional expansion modules, so it fits medium-size machine control without jumping to a larger CPU frame.
Relay outputs vs transistor – why it matters for your BOM
Compared to the CP2E-N40DR-D (24 DI, 16 relay outputs), this unit swaps relay coils for 24 transistor outputs. That means faster switching for high-speed pulse sequences – the CP2E-N60DT1-D supports 4 impulse outputs and 2 high-speed counters, while the relay version does not. However, the transistor version lacks battery backup, so the real-time clock and program memory rely on flash retention. The CP2E-N60DR-D (same 36 DI / 24 DO count but relay type) includes battery backup. If your application needs a battery-backed RTC for time-stamping or data logging, the CP2E-N60DT1-D won't hold that data through a power-off without reinitialization. Neither unit is a drop-in for the other: output type and I/O count differ, and the transistor sink outputs require a regulated 24 VDC load supply, unlike relay outputs that handle AC or DC directly.
I/O mapping and mounting notes
The unit has 36 digital inputs at 24 VDC. For high-speed counting, the unit has 2 built-in high-speed counters that can operate up to 100 kHz. The 4 impulse outputs can drive stepper or servo drives with trapezoidal acceleration profiles programmed in ladder. The Ethernet port supports Omron's proprietary protocol and standard TCP/IP sockets; baud rate max of 100 Mbps is sufficient for most PLC-to-HMI or SCADA links. No Modbus TCP gateway is built in, so plan a separate gateway if your network relies on Modbus.