Brand :
OMRONThe CP1L-EM40DT1-D is a 40-point I/O programmable logic controller (PLC) CPU unit in Omron's CP1L series.
It operates on a 24V DC power supply and features 24 built-in digital inputs and 16 transistor (PNP source) outputs. This model comes standard with an Ethernet communication port and supports ladder logic programming via CX-One software, making it a cost-effective and compact core unit for automation control.

| Brand |
OMRON |
| Model / Part Number | CP1L-EM40DT1-D |
| I/O Points | 40 points (24 inputs / 16 outputs) |
| Input Type | DC24V (PNP/NPN shared) |
| Output Type | Transistor (Source PNP) |
| Power Supply Voltage | 24V DC (20.4~26.4V DC) |
| Program Capacity | 10K~20K steps |
| Data Memory | 32K words |
| Logic Execution Speed | 0.55 µs |
| High-Speed Counters | 4 channels (single-phase 100kHz / phase difference 50kHz) |
| Pulse Outputs | 2 channels (100kHz) |
| Communication Ports | Ethernet ×1 (standard), RS-232C/RS-485 (optional board required) |
| Dimensions | 150 (W) × 90 (H) × 85 (D) mm |
| Operating temperature | 0°C to 50°C |
| Mounting Method | DIN rail mounting |
Q: What types of equipment is the CP1L-EM40DT1-D mainly used in?
A: It is suitable for small automated equipment requiring Ethernet communication and basic positioning functions, such as packaging machinery, electronic assembly lines, textile machinery, small conveyor systems, and HVAC terminal control.
Q: What software is used for programming? Does it support offline simulation?
A: It uses the Omron FA Integration Toolkit CX-One (which includes CX-Programmer). Offline simulation is supported; the ladder diagram program can be simulated on a computer, the logic debugged, and then downloaded to the PLC.
Q: Can the CP1L-EM40DT1-D be expanded with more I/O points?
A: Yes. It can connect to up to 3 CP1W series expansion units (such as digital I/O, analog I/O, temperature input, etc.), with a maximum of 160 local I/O points. In addition, optional functional modules such as serial communication board (RS-232C/RS-485) and LCD display board are also available.
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