Part of the Omron NX-Series Safety & I/O series — see the full model table, lifecycle status and replacement parts.
Omron NX-SL5500 — Safety CPU, 1024 I/O, SIL3
SKU: NX-SL5500USD 1050.00
Omron NX-SL5500 NX-series Safety CPU, 1024 safety I/O, CIP-Safety + FSoE, 2 MB program, SIL3 / PLe. In stock.
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Product Overview
The Omron NX-SL5500 is an 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).
The unit runs a safety logic program certified to SIL 3 per IEC 61508 and PLe Category 4 per EN ISO 13849-1. Up to 1024 safety I/O points connect through 128 safety master connections. The unit supports CIP Safety on EtherNet/IP and FSoE master on EtherCAT in the same program, so a single Safety CPU can interlock EtherNet/IP devices and EtherCAT safety slaves.
Program memory is 2048 KB. The unit runs Free-Run refreshing refreshing and supports SD card backup and restore of the safety project. Power consumption is 3.35 W max from the NX bus. The body is 30 x 100 x 71 mm, 130 g. Mounts on an NX-series CPU rack under an NX102 / NX502 / NX1P2 CPU or an NX-CSG320 Communication Control Unit.
Key Features
- NX-series Safety CPU Unit, SIL 3 per IEC 61508, PLe Cat 4 per EN ISO 13849-1
- Up to 1024 safety I/O points through 128 safety master connections
- CIP-Safety on EtherNet/IP + FSoE master on EtherCAT in one program
- 2048 KB program memory, Free-Run refreshing, SD card backup / restore
- SKU: NX-SL5500
- Series: Omron NX-series Safety Control Unit (NX-SL5)
- I/O: 1024 points
Best-Fit Applications
- Robotic welding cell where the NX-SL5500 interlocks the light curtain and the safety door over FSoE and reports to the NJ CPU over CIP-Safety
- Modular packaging line where the same Safety CPU serves three machine cells over CIP-Safety on EtherNet/IP and 32 local NX safety I/O units
- Spare replacement on an existing NX-SL3 application where the cell needs to scale up to 1024 safety I/O without changing the rack
Buying Checklist
- Pick the NX-SL5500 for an NX Safety CPU with 1024 safety I/O, 128 safety master connections and CIP-Safety + FSoE on one program.
- Pick the NX-SL3500 instead when the application needs only 96 safety I/O and 32 master connections on the same NX bus.
- Pick the NX-CSG320 Communication Control Unit instead when the cabinet needs a non-safety EtherNet/IP + EtherCAT master that the NX-SL5500 can pair with.
Technical Specifications
| Manufacturer | Omron Corporation (Japan) |
|---|---|
| Series | Omron NX-series Safety Control Unit (NX-SL5) |
| Model / SKU | NX-SL5500 |
| Functional Safety | SIL 3 per IEC 61508; PLe Cat 4 per EN ISO 13849-1 |
| Maximum Safety I/O | 1024 points |
| Program Capacity | 2048 KB |
| Safety Master Connections | 128 (CIP-Safety + FSoE) |
| CIP-Safety Originator Connections | 128 |
| FSoE Master Connections | 128 |
| Signal Processing | Free-Run refreshing |
| Backup / Restore | SD card slot |
| Dimensions / Weight | 30 (W) x 100 (H) x 71 (D) mm; 130 g; 3.35 W max from NX bus |
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-SL5500
What is the difference between NX-SL5500 and NX-SL5700?
Both are NX-series Safety CPUs. The NX-SL5500 supports 1024 safety I/O points and 128 master connections. The NX-SL5700 supports 2032 safety I/O points and 254 master connections. Pick the 5700 for larger lines.
Does the NX-SL5500 run both EtherNet/IP CIP-Safety and EtherCAT FSoE?
Yes. The unit has one CIP-Safety originator port on EtherNet/IP and one FSoE master port on EtherCAT, both running in the same safety program. It can interlock safety devices on both networks simultaneously.
Which CPU pairs with the NX-SL5500?
Mounts on an NX-series rack under an NX102, NX502 or NX1P2 CPU, or under an NX-CSG320 Communication Control Unit. The safety logic programs in Sysmac Studio Safety Edition.
How many safety I/O units can the NX-SL5500 host locally?
Up to 32 local NX safety I/O units on the same NX bus (NX-SID safety inputs, NX-SOH / NX-SOD safety outputs). The 1024-point cap is the sum of local I/O plus remote FSoE / CIP-Safety connections.
How is the NX-SL5500 different from the NX-SL3300?
The NX-SL3300 supports only 32 safety I/O points and 32 safety connections. The NX-SL5500 supports 1024 safety I/O points and 128 connections. Both run CIP-Safety and FSoE. The SL3300 is for small cells; the SL5500 for full production lines.
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