Configured for high-speed motion control and industrial process synchronization in industrial automation networks, the Omron NX1P2-1140DT1 (NX1P2-1140DT1 Sysmac NX1P CPU) provides direct physical/electrical execution. It coordinates sequence control and motion processing across local I/O cards and fieldbus nodes, supporting up to 40 direct digital I/O points alongside integrated EtherCAT and EtherNet/IP communications.

Part Number Nomenclature & Variant Index

• NX1P2: Sysmac compact machine controller processor family.

• 1140: Standard performance CPU core with 40 built-in direct I/O points (24 NPN/PNP inputs, 16 PNP outputs).

• D: Direct current (DC) supply voltage execution architecture.

• T1: Transistor PNP logic output array for field actuator control.

Core System Specifications

EtherNet/IP & Backplane Bus Performance

The NX1P processor implements deterministic network switching over EtherCAT to manage distributed servo axes and remote I/O modules with minimal jitter. Internal CPU backplane bus communication velocity guarantees rapid data interchange between the primary processor core and adjacent NX-series expansion I/O units. Deterministic network packet handling on the EtherNet/IP channel enables concurrent enterprise data connectivity without degrading real-time control task execution loops. High-density I/O scaling is achieved through expansion bus couplers, while local firmware flash compatibility maintains version integrity across multi-axis motion profile libraries.

Logistics & Package Contents

• 1x Omron NX1P2-1140DT1 Sysmac CPU Unit

• 1x Removable Terminal Block Set for DC Power and Direct I/O Wiring

• 1x End Cover Unit (NX-END02)

• 1x Hardware Installation Sheet

Mechanical Mounting & Wiring Protocol

• DIN-Rail Attachment: Mount the CPU vertically onto a standard 35 mm DIN rail (TH35-7.5/TH35-15). Secure both ends with DIN rail stop brackets to prevent lateral displacement under industrial vibration profiles.

• Shielding & Grounding: Connect the functional ground terminal (100 ohms or less) directly to an independent earth bus using a minimum 2.0 mm2 conductor wire to suppress electromagnetic interference.

• Conductor Separation: Route high-voltage power lines and motor drive cables in separate ducting at least 100 mm away from the EtherCAT and Ethernet communication wiring.

• Terminal Wiring: Use ferruled stranded copper conductors rated for 75 deg C or higher when wiring the push-in Plus terminal block to maintain vibration-resistant electrical contacts.

System Diagnostic FAQ

• How does the primary task cycle time impact motion execution?

  The 2 ms primary cycle time locks the execution period for sequence programming and motion profiles, ensuring deterministic timing for axis positioning and sensor sampling routines.

• What voltage range is tolerated on the primary power terminals?

  The CPU accepts an input supply range of 20.4 VDC to 28.8 VDC. Supply excursions outside this boundary trigger internal power supply brownout protection and halt CPU execution.

• Can NX-series I/O units be attached directly to the CPU base?

  Yes, NX-series digital, analog, and communication I/O modules snap directly onto the right side of the NX1P CPU backplane bus interface without requiring intermediate cables.

• Does the EtherCAT master port support third-party fieldbus devices?

  The EtherCAT port supports standard EtherCAT Slave Information (ESI) files, allowing integration of third-party servo drives, distributed I/O islands, and sensor blocks.

• What happens if an EtherCAT network cable is disconnected during operation?

  The CPU registers a communication link error, retains safe state configuration on local outputs, and continues executing local non-motion logic tasks unimpacted by the lost fieldbus node.

• Is battery backup required to retain program memory during power outages?

  No, user program memory and non-volatile system variables are saved to internal non-volatile flash memory, eliminating the requirement for a continuous battery backup power source.

• How are the transistor PNP outputs protected against short circuits?

  Internal overcurrent protection circuitry limits output current when an external load short occurs, toggling system diagnostic flags to alert the supervisory software.

• What wire gauge range is supported by the integrated push-in terminal block?

  The spring-cage push-in terminal blocks accommodate solid or ferruled flexible copper conductors ranging from 0.14 mm2 to 1.5 mm2 (AWG 28 to AWG 16).