ASi EtherNet/IP + ModbusTCP Gateways – High Availability and Ideal for Rockwell PLCs
ASi EtherNet/IP + ModbusTCP Gateways with and without integrated safety monitor: immediately available from us in large quantities
Are you looking for ASi gateways with EtherNet/IP + ModbusTCP interface to connect AS-Interface (ASi) to an EtherNet/IP + ModbusTCP control system or Rockwell PLC? Then we recommend two items: BWU3849 (for 1 ASi circuit) and BWU3851 (for 2 ASi circuits).
Do you also need Safety? Then the "Bihl+Wiedemann's Choice" articles BWU3957 (for 1 ASi circuit) and BWU3958 (for 2 ASi circuits) are ideally suited. Both gateways have an integrated safety monitor and thus make it possible to solve safety functions completely without expensive higher-level safe control.
For standard applications:
ASi EtherNet/IP + Modbus TCP Gateways without integrated Safety monitor
We recommend the "Bihl+Wiedemann's Choice" articles BWU3849 and BWU3851 for almost all standard applications. Here you also benefit from our new power supply generation.
![](/fileadmin/_processed_/0/8/csm_3849_83d9f80938.png)
BWU3849
1 ASi circuit, 1 ASi-5/ASi-3 Master
- integrated decoupling
max. 4 A per ASi circuit
Diagnostics and configuration via EtherNet/IP + ModbusTCP
- OPC UA interface and integrated webserver for easy diagnostics and maintenance
ASi-5 – great data bandwidth, short cycle times
![](/fileadmin/_processed_/5/0/csm_3851_3610c20beb.png)
BWU3851
2 ASi circuits, 2 ASi-5/ASi-3 Masters
- integrated decoupling
max. 4 A per ASi circuit
Diagnostics and configuration via EtherNet/IP + ModbusTCP or Ethernet diagnostic interface
OPC UA interface and integrated webserver for easy diagnostics and maintenance
ASi-5 – great data bandwidth, short cycle times
However, if you need more than 4A per ASi circuit, you can also use the ASi EtherNet/IP + ModbusTCP Gateways BWU4019 (for 1 ASi circuit) and BWU4258 (for 2 ASi circuits).
![](/fileadmin/_processed_/6/1/csm_4019_94d7837a78.png)
BWU4019
1 ASi circuit, 1 ASi-5/ASi-3 Master
max. 8 A per ASi circuit
Diagnostics and configuration via EtherNet/IP + ModbusTCP or Ethernet diagnostic interface
- OPC UA interface and integrated webserver for easy diagnostics and maintenance
ASi-5 – great data bandwidth, short cycle times
![](/fileadmin/_processed_/2/1/csm_4258_d95dd484b7.png)
BWU4258
2 ASi circuits, 2 ASi-5/ASi-3 Masters
max. 8 A per ASi circuit
Diagnostics and configuration via EtherNet/IP + ModbusTCP or Ethernet diagnostic interface
OPC UA interface and integrated webserver for easy diagnostics and maintenance
ASi-5 – great data bandwidth, short cycle times
For Safety applications:
ASi EtherNet/IP + ModbusTCP Gateways with integrated Safety monitor
We recommend the articles BWU3957 and BWU3958 for almost all Safety applications. Here you also benefit from our new power supply generation.
![](/fileadmin/_processed_/3/9/csm_3957_3423ea1270.png)
BWU3957
1 ASi circuit, 1 ASi-5/ASi-3 Master
integrated decoupling
max.4 A per ASi circuit
Diagnostics and configuration via EtherNet/IP + ModbusTCP or Ethernet diagnostic interface
Safety communication via Safe Link
OPC UA interface and integrated webserver for easy diagnostics and maintenance
ASi-5 – great data bandwidth, short cycle times
![](/fileadmin/_processed_/0/5/csm_3958_ba486ab4ff.png)
BWU3958
2 ASi circuits, 2 ASi-5/ASi-3 Masters
integrated decoupling
max. 4 A per ASi circuit
Diagnostics and configuration via EtherNet/IP + ModbusTCP or Ethernet diagnostic interface
Safety communication via Safe Link
OPC UA interface and integrated webserver for easy diagnostics and maintenance
ASi-5 – great data bandwidth, short cycle times
However, if you are dependent on CIP Safety communication – e.g. due to the use of safe Rockwell PLCs – you can alternatively use the ASi EtherNet/IP + ModbusTCP gateway BWU3857 (for 2 ASi circuits). The gateway offers integrated CIP safety communication for easy integration of the safe signals into the safe Rockwell PLC.
This device is usually also in stock.
![](/fileadmin/_processed_/6/a/csm_3638_00fc4c693d.png)
BWU3857
- 2 ASi circuits, 2 ASi-3 Masters
- integrated decoupling
max. 4 A per ASi circuit
Diagnostics and configuration via EtherNet/IP + ModbusTCP or Ethernet diagnostic interface
- Safety communication via Safe Link
- CIP Safety über EtherNet/IP communication integrated
OPC UA interface and integrated webserver for easy diagnostics and maintenance
ASi-5 – great data bandwidth, short cycle times