Integrated safety into machine automation

The Sysmac automation platform integrates the safety solution within our one connection and one software concept. One connection is realised through the use of Safety over EtherCAT - FSoE - protocol. The one software is achieved by using the Sysmac Studio for configuration, programming and maintenance. The NX safety system consists of safety controller and safety I/O units. Both the safety controller and safety I/O can be freely distributed in an I/O rack throughout the network, mixing them in any combination with standard NX I/O.
  • The safety controller meets Category 4, PLe according to the EN ISO 13849-1 and SIL3 according to the IEC 61508
  • Up to 8 safety input points per unit
  • Safety Function Blocks conforming with IEC 61131-3 standard programming
  • PLCopen Function Blocks for safety
  • Integration in one software, Sysmac Studio
Specifications & ordering info

Ordering information

Communication and control units

Module Type





Order Code

Communication coupler

EtherCAT Slave

2 RJ45 ports

(in + out)

Up to 63 I/O units.

Max. 1,024 bytes in + 1,024 bytes out

Supports distributed clock

I/O power supply up to 10 A

46 mm


Safety controller integrated


128 Safety connections

Up to 2 MB Safety program capacity

Up to 128 Safety slices

Up to 1024 safety I/O points

Safety and standard digital/analog slices can be connected

30 mm


32 Safety connections

512 KB Safety program capacity

Up to 32 Safety slices

Up to 256 safety I/O points

Safety and standard digital/analog slices can be connected

30 mm


Safety Digital I/O units

Module type

Channels, Signal type

Performance1, I/O Refresh Mode

Connection type


Order Code

Safety Digital Input

4 inputs + 2 test outputs

Free Run

Screwless push-in (NX-TBA082)

12 mm


8 inputs + 2 test outputs

Free Run

Screwless push-in (NX-TBA162)

12 mm


Safety Digital Output

2 outputs, 2.0 A

Free Run

Screwless push-in (NX-TBA082)

12 mm


4 outputs, 0.5 A

Free Run

Screwless push-in (NX-TBA082)

12 mm


Note: For a standard I/O unit please check the chapter NX-I/O.

Software tool

To program the NX-Series use the Sysmac studio software tool, please have a look on the section Software to select your licence

1. Digital I/O performance

1. Digital I/O performance


Sysmac Studio

Sysmac Studio.jpg
Created to give machine developers complete control from a single environment, Sysmac Studio integrates configuration, programming, simulation, and monitoring in a simple interface.


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