Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX-SL3300 — NX Safety CPU, 32 FSoE, 256 I/O
SKU: NX-SL3300USD 175.00
Omron NX-SL3300 NX-series Safety CPU Unit, 32 FSoE master connections, up to 256 safety I/O points, SIL 3 / PLe. In stock, China shipping.
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Product Overview
The Omron NX-SL3300 is the NX-series Safety CPU Unit, manufactured by Omron Corporation. Hengyixin Automation stocks this safety device in Xiamen and ships within 3-5 business days; safety-rated components ship with a batch-trace certificate. Specifications on this page were checked against Omron's NX-series I/O System brochure (R183).
It runs the safety logic for an NX-series EtherCAT safety network: 32 FSoE master connections, up to 256 safety I/O points, 512 KB program capacity. It covers SIL 3 (IEC 61508, IEC 62061) and PLe / Category 4 (EN ISO 13849-1). It plugs onto the NX I/O bus behind an NX-ECC201 / NX-ECC202 EtherCAT Coupler, an NX-EIC202 EtherNet/IP Coupler for a stand-alone safety island, or onto the right side of an NX102 CPU.
Free-Run refreshing only. NX unit power 1.25 W max on NX102 / NX502 CPU, 0.90 W max on Coupler. No external connection terminals - safety I/O lands through FSoE on NX-SID800, NX-SIH400 input slices and NX-SOD400, NX-SOH200 output slices. 30 x 100 x 71 mm, 75 g. IP20. 0 to 55 C ambient. For larger safety systems step up to NX-SL3500.
Key Features
- NX-series Safety CPU Unit with 32 FSoE master connections and up to 256 safety I/O points on the NX I/O bus
- SIL 3 (IEC 61508, IEC 62061) and PLe / Category 4 (EN ISO 13849-1) for emergency stop, safety gate, and light-curtain applications
- 512 KB program capacity, Free-Run refreshing, NX unit power 1.25 W max on CPU / 0.90 W max on Coupler, 24 VDC via NX bus
- Sits on NX-ECC201 / NX-ECC202 / NX-EIC202 Coupler or on an NX102 CPU; safety I/O lands via NX-SID800, NX-SIH400, NX-SOD400, NX-SOH200 slices
- SKU: NX-SL3300
- Series: NX-series Safety CPU Unit (NX-SL3 family) on NX I/O Bus
- I/O: 32 I/O
Best-Fit Applications
- Stand-alone safety island in a robot cell where NX-SL3300 on NX-EIC202 controls two NX-SID800 8-input slices and one NX-SOD400 4-output slice via FSoE
- Integrated safety on a packaging line where NX-SL3300 sits on NX-ECC202 next to an NX102-1200 and reads NX-SIH400 four-side light curtains on the operator doors
- Spare replacement on a CJ1W-SCU21 safety network where the original NX-SL3300 was lost and the Sysmac Studio project backup holds the FSoE node map
Buying Checklist
- Pick the NX-SL3300 when the safety network needs up to 256 safety I/O points on 32 FSoE connections on a 30 mm wide NX slice.
- Pick the NX-SL3500 instead when the safety network needs up to 1024 safety I/O points on 128 FSoE connections with 2048 KB program capacity.
- Pick the G9SA-301 AC-DC24 safety relay instead when the safety function is a single emergency-stop loop with no FSoE network and no safety I/O slices.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | NX-series Safety CPU Unit (NX-SL3 family) on NX I/O Bus |
| Model / SKU | NX-SL3300 |
| Safety Integrity | SIL 3 (IEC 61508 parts 1-7, IEC 62061); PLe and Category 4 (EN ISO 13849-1, EN ISO 13849-2); shipbuilding NK, LK |
| Safety I/O Capacity | 32 FSoE master connections; 32 safety I/O connections; up to 256 safety I/O points; 0 CIP Safety originator/target connections |
| Program Capacity | 512 KB program memory; Sysmac Studio Safety Edition Ver. 1.07 or higher |
| Communication | Safety over EtherCAT (FSoE) on the NX I/O bus; CIP Safety not supported; no external connection terminals |
| Refreshing | Free-Run refreshing only |
| Connection / Power | Plugs onto NX-ECC201 / NX-ECC202 / NX-ECC203 EtherCAT Coupler or NX-EIC202 EtherNet/IP Coupler, or onto NX102 / NX502 CPU right side; 24 VDC via NX bus |
| Unit Power | Connected to NX102 / NX502 CPU: 1.25 W max; Connected to NX-ECC20[] Coupler or NX-EIC202 Coupler: 0.90 W max; no I/O power terminals |
| Indicators | FS, VALID, DEBUG, TS, RUN LED indicators on the front face |
| Dimensions / Approvals | 30 (W) x 100 (H) x 71 (D) mm; 75 g max; IP20; 0 to 55 C ambient; CE, cULus (UL 508, ANSI/ISA 12.12.01), TUV Rheinland, RCM, KC |
Manufacturer documentation
Omron's own product page, where the manufacturer's current specification and lifecycle information are published. We are an independent distributor and cannot mirror those documents; the link goes to Omron's site.
FAQ for NX-SL3300
What is the Omron NX-SL3300 used for?
It is the NX-series Safety CPU Unit that runs the safety logic on the NX I/O bus. Typical uses are stand-alone safety islands in a robot cell, integrated safety on a packaging line where the NX-SL3300 sits next to an NX102-1200, and spare replacement on a safety network where the Sysmac Studio project backup holds the FSoE node map.
NX-SL3300 vs NX-SL3500 - what is the difference?
Both are NX-series Safety CPU Units with SIL 3 / PLe Cat 4. The NX-SL3300 supports 32 FSoE master connections, up to 256 safety I/O points, and 512 KB program capacity. The NX-SL3500 supports 128 FSoE master connections, up to 1024 safety I/O points, and 2048 KB program capacity. Both can sit on an NX102 CPU, NX-ECC20[] Coupler, or NX-EIC202 Coupler. Pick the NX-SL3300 for small to medium safety systems; pick the NX-SL3500 for large safety systems with many FSoE nodes.
What safety I/O units work with the NX-SL3300?
NX-SID800 (8 safety inputs + 2 test outputs, 12 mm wide), NX-SIH400 (4 safety inputs + 2 test outputs, 12 mm wide), NX-SOD400 (4 safety outputs 0.5 A per point, 12 mm wide), and NX-SOH200 (2 safety outputs 2.0 A per point, 12 mm wide). All communicate with the NX-SL3300 over FSoE on the NX I/O bus. The I/O points count toward the 256-point total.
Does the NX-SL3300 work with a non-Omron EtherCAT master?
No. The NX-SL3300 sits on an NX-ECC201 / NX-ECC202 / NX-ECC203 EtherCAT Coupler, and the coupler needs an Omron Sysmac master (NX102 / NX502 CPU or NJ-series controller) as the FSoE host. For a non-Omron EtherCAT master, the FSoE stack is not supported. For a stand-alone safety island with no Sysmac master on the same network, use the NX-SL3300 on an NX-EIC202 EtherNet/IP Coupler as a stand-alone safety controller.
How do I program the NX-SL3300?
In Sysmac Studio Safety Edition Ver. 1.07 or higher. Add the NX-SL3300 under Configurations - CPU Rack or EtherCAT, register each FSoE slave (NX-SID800, NX-SOD400, etc.) under the Safety I/O tab, and write the safety logic with the safety function blocks. Download and verify online. The right-side LED indicates FS (FSoE state), VALID (configuration match), DEBUG, TS, and RUN.
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