Description
The Omron CP1E-N40S1DR-A is an application-model CPU unit belonging to the highly versatile CP1E family of micro PLCs. Designed for cost-effective automation, this controller features 40 built-in digital I/O points (comprising 24 input points and 16 relay output points) to manage complex machine sequences. The unit is equipped with a built-in RS-485 communication port alongside a standard USB port, allowing direct integration into industrial networks, HMIs, and frequency inverters without requiring additional serial option boards.
Operating on an AC power supply, the CP1E-N40S1DR-A offers a robust design that excels in space-constrained control panels. It features high-speed processing capabilities, a generous program capacity of 8K steps, and support for CP1W expansion modules to scale the system as application requirements grow. This makes it an exceptional choice for small-to-medium-sized industrial machinery requiring reliable serial communications and rugged solid-state performance.
Features
- Integrated 40-point digital I/O layout with 24 VDC inputs and high-capacity relay outputs.
- Built-in RS-485 port supporting Modbus-RTU Easy Master for simple communication with peripheral devices.
- High-speed USB 2.0 peripheral port for programming, diagnostic monitoring, and system configuration.
- Supports up to three CP1W expansion I/O units or expansion units to scale capabilities.
- Equipped with high-speed counter inputs for rotary encoder interfacing and precise positioning tasks.
- Maintenance-free operational design with battery-free memory backup.
Applications
- Packaging and labeling machines
- Conveyor systems and material handling systems
- Water and wastewater pump control
- Textile and chemical processing equipment
- HVAC control and basic building automation
Technical Specifications
| Manufacturer |
Omron |
| Part Number/Model |
CP1E-N40S1DR-A |
| Series |
CP1E (Application Model) |
| Power Supply Voltage |
100 to 240 VAC, 50/60 Hz |
| Operating Voltage Range |
85 to 264 VAC |
| Power Consumption |
50 VA maximum |
| Number of Inputs |
24 inputs (24 VDC, 4.3 mA) |
| Number of Outputs |
16 outputs (Relay) |
| Relay Output Rating |
2 A at 250 VAC / 24 VDC (resistive load) |
| Program Capacity |
8K steps |
| Data Memory Capacity |
8K words |
| Built-in Ports |
1x USB (Type B, USB 2.0), 1x RS-485 (terminal block) |
| Ambient Operating Temperature |
0 to 55 degC |
| Mounting Type |
DIN Rail or M4 screw panel mount |
Connections and Interfaces
| Terminal Label |
Function Assignment |
| L, N |
AC Power Supply Input (100 to 240 VAC) |
| GR |
Ground Terminal (100 ohms or less) |
| 00 to 11 (Inputs CH 0) |
24 VDC Digital Inputs (Channel 0) |
00 to 11 (Inputs CH 1)
24 VDC Digital Inputs (Channel 1) |
| 00 to 07 (Outputs CH 100) |
Relay Contact Outputs (Channel 100) |
| 00 to 07 (Outputs CH 101) |
Relay Contact Outputs (Channel 101) |
| A-, B+, SG |
RS-485 Serial Communication Interface |
Installation Guidelines
- Ensure the unit is mounted in an IP54 or higher rated control enclosure to protect against dust, oil, and moisture.
- Install the PLC vertically on a 35mm DIN rail or securely using M4 mounting screws to promote passive convection cooling.
- Maintain a minimum clearance of 50 mm above and below the controller for ventilation.
- Use shielded twisted-pair cables for the RS-485 network and ground the shield at one end only to prevent ground loop interference.
Compliance and Certifications
- CE Mark
- UL Listed (cULus)
- RoHS Compliant