NX-SL3300 NX Series Safety CPU Unit 32 Connections 256 I/O | Omron

The Original New Omron NX-SL3300 is a Safety CPU Unit for the NX series I/O system, designed to execute safety logic and control safety I/O over EtherCAT using the FSoE (FailSafe over EtherCAT) protocol. As the core of a distributed safety system, it manages up to 32 safety master connections and 256 safety I/O points, compliant with EN ISO 13849-1 (PLe / Category 4) and IEC 61508 (SIL3). The NX-SL3300 can be used in a stand‑alone safety system with an EtherNet/IP Coupler Unit (NX-EIC202) or integrated into an EtherCAT network via an EtherCAT Coupler Unit (NX-ECC20×). Configured and programmed with Sysmac Studio automation software.

Core Engineering Highlights:
PLe / Category 4 (EN ISO 13849-1) | SIL 3 (IEC 61508, IEC 62061) | 32 FSoE master connections | 256 safety I/O points max | 512 KB program capacity | Safety over EtherCAT (FSoE) communication | Free‑Run refreshing | 24 V DC (via NX bus) | 30 × 100 × 71 mm | 75 g weight | IP20 protection | 0°C to +55°C operating temperature

Key Features:

• Original New Omron NX-SL3300 Safety CPU Unit

• Safety integrity: SIL 3 (IEC 61508, IEC 62061), PLe / Category 4 (EN ISO 13849-1)

• 32 FSoE (FailSafe over EtherCAT) master connections for safety I/O control

• Up to 256 safety I/O points (safety inputs + safety outputs)

• 512 KB program capacity for safety logic applications

• Safety over EtherCAT (FSoE) communication protocol

• Free‑Run refreshing method for flexible I/O timing

• DIN rail mounting for control cabinet installation

• IP20 protection for control cabinet environments

• 0.9 W typical power consumption (connected to Communications Coupler Unit)

• 75 g lightweight design

• LED indicators: FS, VALID, DEBUG, TS, RUN

• Compliant with IEC 61131-3 programming standard

• 30 mm width for space‑saving panel installation

• Configurable with Sysmac Studio automation software (Ver. 1.07 or higher)

Applications:

• Emergency stop and safety gate monitoring systems

• Light curtain and safety sensor integration

• Robot cell and conveyor safety control

• Machine safety applications requiring SIL 3 / PLe

• Distributed safety I/O for NX series systems

• Stand‑alone safety systems with EtherNet/IP Coupler Unit

• Integrated safety with EtherCAT motion control systems

Technical Specifications:

System Compatibility:

• Compatible with Omron NX series EtherCAT Coupler Units (NX-ECC20×) for integration into EtherCAT networks

• Compatible with NX series EtherNet/IP Coupler Units (NX-EIC202) for stand‑alone safety systems

• Compatible with NX series CPU Units: NX102 CPU Units (can be connected); NX1P2 CPU Units (cannot be connected)

• Supports NX series safety input units (NX-SID800, NX-SIH400) and safety output units (NX-SOD400, NX-SOH200)

• Can be freely allocated in any combination with standard NX I/O

• Programming and configuration with Sysmac Studio automation software

Related Products:

• NX-ECC203 – NX series EtherCAT Coupler Unit, 2 ports, 125 µs cycle time

• NX-EIC202 – NX series EtherNet/IP Coupler Unit, 2 ports, local safety support

• NX-SID800 – 8‑point PNP safety input unit (24 V DC)

• NX-SIH400 – 4‑point safety input unit for OMRON Non‑contact Switches

• NX-SOD400 – 4‑point PNP safety output unit (0.5 A/point)

• NX-SOH200 – 2‑point safety output unit (2.0 A/point)

• Sysmac Studio – Automation software for configuration and programming (sold separately)

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Omron is a trademark of Omron Corporation.