PROFIsafe Safety Protocol

What is PROFIsafe?

PROFIsafe is a safety profile for transmitting safety-critical data over PROFINET or PROFIBUS. PROFIsafe meets the highest safety requirements of SIL3, thereby enabling safe communication in the process and manufacturing sectors.

PROFIsafe Products

ASi-5/ASi-3 Gateways PROFIsafe over PROFINET or PROFIsafe over PROFIBUS provide an interface for a PROFIBUS or PROFINET fieldbus. These ASi gateways are available in various versions with IP20 protection rating.

PROFIsafe, PROFINET ASi Gateways

PROFIsafe, PROFINET ASi

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/IPTM + 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.


Suitable for applications up to category 4/PLe/SIL 3.

Inputs Safety

Suitable for applications up to category 4/PLe/SIL 3.

Outputs Safety

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

Using a C-program offers the possibility to run mini-PLC functions with a gateway.

Programming in C
Article No.
BWU3953
Gateway with integrated ASi-5/ASi-3 Safety Monitor
OPC UA, PROFINET, REST API
ASi-3 compatible, ASi-5 compatible
2 ASi networks, 2 ASi-5/ASi-3 Masters
yes, max. 4 A/ASi network
Ethernet diagnostic, Ethernet fieldbus
PROFIsafe (F-CPU), Safe Link
3 x 2 channels, 6 x 1 channel
6 release circuits, 6 x electronic safe outputs
yes
yes
optional
BWU3830
Gateway with integrated ASi-5/ASi-3 Safety Monitor
OPC UA, PROFINET
ASi-3 compatible, ASi-5 compatible
2 ASi networks, 2 ASi-5/ASi-3 Masters
yes, optimized for 2 x NEC class 2 power supplies
Ethernet diagnostic, Ethernet fieldbus
PROFIsafe (F-CPU), Safe Link
3 x 2 channels, 6 x 1 channel
6 release circuits, 6 x electronic safe outputs
yes
yes
optional
BWU3952
Gateway with integrated ASi-5/ASi-3 Safety Monitor
OPC UA, PROFINET, REST API
ASi-3 compatible, ASi-5 compatible
2 ASi networks, 2 ASi-5/ASi-3 Masters
yes, max. 4 A/ASi network
Ethernet diagnostic, Ethernet fieldbus
Safe Link
3 x 2 channels, 6 x 1 channel
6 release circuits, 6 x electronic safe outputs
yes
yes
optional
BWU3973
Gateway with integrated ASi-5/ASi-3 Safety Monitor
OPC UA, PROFINET, REST API
ASi-3 compatible, ASi-5 compatible
2 ASi networks, 2 ASi-5/ASi-3 Masters
yes, max. 4 A/ASi network
Ethernet diagnostic, Ethernet fieldbus
PROFIsafe (F-CPU), Safe Link
no local safe inputs
no local safe output
yes
yes
optional
BWU3954
Gateway with integrated ASi-5/ASi-3 Safety Monitor
OPC UA, PROFINET, REST API
ASi-3 compatible, ASi-5 compatible
1 ASi network, 1 ASi-5/ASi-3 Master
yes, max. 4 A/ASi network
Ethernet diagnostic, Ethernet fieldbus
PROFIsafe (F-CPU), Safe Link
3 x 2 channels, 6 x 1 channel
6 release circuits, 6 x electronic safe outputs
yes
yes
optional
BWU3955
Gateway with integrated ASi-5/ASi-3 Safety Monitor
OPC UA, PROFINET, REST API
ASi-3 compatible, ASi-5 compatible
1 ASi network, 1 ASi-5/ASi-3 Master
yes, max. 4 A/ASi network
Ethernet diagnostic, Ethernet fieldbus
Safe Link
3 x 2 channels, 6 x 1 channel
6 release circuits, 6 x electronic safe outputs
yes
yes
optional
BWU3974
Gateway with integrated ASi-5/ASi-3 Safety Monitor
OPC UA, PROFINET, REST API
ASi-3 compatible, ASi-5 compatible
1 ASi network, 1 ASi-5/ASi-3 Master
yes, max. 4 A/ASi network
Ethernet diagnostic, Ethernet fieldbus
PROFIsafe (F-CPU), Safe Link
no local safe inputs
no local safe output
yes
yes
optional
BWU3998
Gateway with integrated Safety Monitor
OPC UA, PROFINET, REST API
ASi-3 compatible, ASi-5 compatible
1 ASi network, 1 ASi-5/ASi-3 Master
yes, max. 4 A/ASi network
Ethernet diagnostic, Ethernet fieldbus
Safe Link
no local safe inputs
no local safe output
yes
yes
optional

 

PROFIsafe, PROFIBUS ASi Gateways

PROFIsafe, PROFIBUS ASi

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/IPTM + 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.


Suitable for applications up to category 4/PLe/SIL 3.

Inputs Safety

Suitable for applications up to category 4/PLe/SIL 3.

Outputs Safety

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

Using a C-program offers the possibility to run mini-PLC functions with a gateway.

Programming in C
Article No.
BWU2819
Gateway with integrated Safety Monitor
PROFIBUS
ASi-3 compatible
1 ASi network, 1 ASi-3 Master
yes, max. 4 A/ASi network
Ethernet diagnostic
PROFIsafe (F-CPU)
3 x 2 channels
6 release circuits, 6 x electronic safe outputs
yes
yes
optional

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