DeviceNet Fieldbus system

What is DeviceNet?

DeviceNet is an open fieldbus standard that was developed by Rockwell Automation and is used in industrial automation. It is based on the CAN bus (Controller Area Network). DeviceNet enables communication between devices from different manufacturers without special interface adaptations. The fieldbus standard is typically used for safety installations, in information exchange and in large input/output control units. DeviceNet is particularly widespread in the USA and Asia.

[Translate to Englisch:] DeviceNet

DeviceNet Gateways

DeviceNet ASi Gateways

DeviceNet ASi-3 Gateways in stainless steel provide an interface for a DeviceNet fieldbus. These ASi gateways are available in various versions with IP20 protection rating. All product variants offer access to the ASi master and safety monitor via Bihl+Wiedemann's own software using an adapter cable via the RS 232 interface. One gateway has integrated data decoupling.

DeviceNet 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

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.
BWU1820
Gateway
DeviceNet
ASi-3 compatible
2 ASi networks, 2 ASi-3 Masters
yes, max. 4 A/ASi network
RS 232
yes
yes
no
BWU1820
BWU1819
Gateway
DeviceNet
ASi-3 compatible
2 ASi networks, 2 ASi-3 Masters
no, max. 8 A/ASi network, redundant supply
RS 232
yes
yes
no
BWU1819
BWU1818
Gateway
DeviceNet
ASi-3 compatible
1 ASi network, 1 ASi-3 Master
no, max. 8 A/ASi network
RS 232
yes
yes
no
BWU1818

 

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