Safety over EtherCAT Safety Protocol

What is Safety over EtherCAT?

Safety over EtherCAT (FSoE) is a safety profile for transmitting safety-critical data over EtherCAT. It meets the highest safety requirements of SIL3, thereby enabling safe data communication.

Safety over EtherCAT Products

ASi-3 Safety over EtherCAT Gateway

The EtherCAT gateway ASi-5/ASi-3 with integrated safety monitor, Safety over EtherCAT can – as a FSoE master – reliably control and monitor safe drives with a FSoE connection without the use of an additional higher level controller. The Safety over EtherCAT gateway takes over the safe part and safely switches the drives off when needed.

Safety over EtherCAT Gateway

Figure Model

Communication interface between fieldbus and gateway:

interfaces for standardized fieldbus systems in industrial automation. Bihl+Wiedemann offers a wide range of gateways for common fieldbus interfaces:

 

  • PROFIBUS
  • PROFINET
  • EtherNet/IP+ Modbus TCP
  • BACnet/IP
  • DeviceNet
  • ControlLogix
  • Compact-/MicroLogix
  • EtherCat
  • POWERLINK
  • CC-Link
  • CANopen
  • RS 485 Modbus
  • OPC UA server

 

Fieldbus interface

The device communicates via the standard ASi-3 and/or ASi-5.

ASi-5/ASi-3
Standard devices

"Single Master":

1 ASi network, 1 ASi-5/ASi-3 Master.

1 ASi network, 1 ASi-3 Master.

"Double Master":

2 ASi networks, 2 ASi-5/ASi-3 Masters.

2 ASi networks, 2 ASi-3 Masters.

Safety devices

"Single Master" :

1 ASi network, 1 ASi-5/ASi-3 Master.

1 ASi network, 1 ASi-3 Master.

"Double Master" :

2 ASi networks, 2 ASi-5/ASi-3 Masters.

2 ASi networks, 2 ASi-3 Masters.

"Optional ASi Safety coupling circuit" :
2 ASi networks, 1 ASi-3 Master.

Number of ASi networks, number of ASi Master

" yes, max. 4 A/ASi network ":

Data decoupling integrated in the gateway. Cost-effective power for 2 ASi networks with 1 power supply (optionally supply of multiple Single Gateways by 1 power supply).

Operation with short cable lengths with standard 24 V power supply possible.


" yes, max. 8 A/ASi network ":

Data decoupling integrated in the gateway. Cost-effective power for 2 ASi networks with 1 power supply (optionally supply of multiple Single Gateways by 1 power supply).

Operation with short cable lengths with standard 24 V power supply possible.


"yes, optimized for 2 x NEC class 2 power supplies"

Data decoupling integrated in the gateway. Optimized for use with 2 x UL certified 30 V/3 A power supplies with power limitation <100 W (BW4223). In combination 2 separate NEC Class 2 compliant ASi circuits are created.


"no, max. 8 A/ASi network, redundant supply ":

1 ASi power supply per ASi network. Gateway is powered in normal operation from one of the two ASi power supplies.

Should one ASi power supply fail, switching to the other ASi power supply allows all the diagnostics functions to be maintained and the unaffected ASi network continues to operate.


" no, max. 8 A/ASi network ":

1 ASi power supply per ASi network.

Integrated decoupling, ASi current measurement in the gateway

Access to ASi master and safety monitor via own software from Bihl+Wiedemann using the diagnostic interface (e.g. USB, RJ45, RS232). For certain devices with Ethernet-based fieldbus (PROFINET, EtherNet/IP), there is also the option of diagnostics and configuration directly via the fieldbus interface.

 

The latest version of the device description file of the gateway/gateway with integrated safety monitor (GSD, GSDML, EDS, etc.) is available in the "Downloads" section of the respective device.

Diagnostic and configuration interface
Safety communication

Safe inputs can be configured as 1-channel or 2-channels depending on the desired application or PL and SIL level.

Inputs Safety, SIL 3, Cat. 4
Outputs Safety, SIL 3, cat. 4

Detects whether the same address has been assigned to two ASi nodes. Frequent error when using a handheld addressing device.

Recognition of duplicate ASi addresses

Checks the ASi line for interference effects such as noise, external voltages, ...

ASi fault detector
Article No.
BWU3858
Gateway with integrated Safety Monitor
EtherCAT, OPC UA
ASi-5 + ASi-3 compatible
2 ASi networks, 2 ASi-5/ASi-3 Masters
yes, max. 4 A/ASi network
Ethernet diagnostic
FSoE + Safe Link
3 x 2 channels
6 release circuits, 6 x electronic safe outputs
yes
yes
BWU3583
Gateway with integrated Safety Monitor
EtherCAT, OPC UA
ASi-5 + ASi-3 compatible
1 ASi network, 1 ASi-5/ASi-3 Master
yes, max. 4 A/ASi network
Ethernet diagnostic
FSoE + Safe Link
3 x 2 channels
6 release circuits, 6 x electronic safe outputs
yes
yes