Sercos Fieldbus system
What is Sercos?
Sercos (Serial real-time communication system) is an open, manufacturer-neutral fieldbus standard used in industrial automation. Sercos enables communication between devices made by different manufacturers without any special interface adaptations.
Safety, Sercos ASi Gateways
ASi-5/ASi-3 Sercos Gateways in stainless steel provide an interface for a Sercos fieldbus. These ASi gateways are available in various versions with IP20 protection rating.
Safety, Sercos ASi
| Figure | Type | Model | "IP20": "IP40": Protected against solid foreign bodies having a diameter of 1.0 mm or larger, protected against access with a wire, no protection against water. "IP54": Protection against dust in damaging amounts, complete protection against contact, protection against splashing water in any angle.
Dust-tight, full protection against contact, protection against temporary immersion. |
Communication interface between fieldbus and gateway: interfaces for standardized fieldbus systems in industrial automation. PROFIBUS ASi gateway: interface for a PROFIBUS fieldbus
PROFIBUS ASi Basic gateway: interface for a PROFIBUS fieldbus PROFIBUS ASi IP65 gateway: interface for a PROFIBUS fieldbus EtherNet/IP+ Modbus TCP ASi gateway: interface for an EtherNet/IP+ ModbusTCP fieldbus BACnet/IP ASi gateway: interface for a BACnet/IP fieldbus Compact-/MicroLogix ASi gateway: interface for the Compact-/MicroLogix fieldbus POWERLINK ASi gateway: interface for an POWERLINK fieldbus OPC UA server: interface for the OPC UA communication
| Standard devices"Single Master": 1 ASi network, 1 ASi-5/ASi-3 Master. 1 ASi network, 1 ASi-3 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. 2 ASi networks, 2 ASi-5/ASi-3 Masters. 2 ASi networks, 2 ASi-3 Masters. | " 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.
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.
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.
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.
1 ASi power supply per ASi network. | "USB": Access to ASi Master and Safety Monitor with Bihl+Wiedemann proprietary software by using the USB interface. Access to ASi Master and Safety Monitor with Bihl+Wiedemann software by using the Ethernet diagnostic interface or Ethernet fieldbus interface. Access to ASi Master and Safety Monitor with Bihl+Wiedemann software by using the Ethernet diagnostic interface. Access to ASi Master and Safety Monitor with Bihl+Wiedemann software by using the Ethernet fieldbus interface or by using an adapter cable via RS 232 interface.
Access to ASi Master and Safety Monitor with Bihl+Wiedemann software by using an adapter cable via RS 232 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. | Detects whether the same address has been assigned to two ASi nodes. Frequent error when using a handheld addressing device. | Checks the ASi line for interference effects such as noise, external voltages, ... | Using a C-program offers the possibility to run mini-PLC functions with a gateway. | An externally connected relay (contactor) can be monitored by connecting the feedback loop to the EDM input. | Inputs Safety, SIL 3, Cat. 4 | Inputs safety, expandable to | Outputs Safety, SIL 3, cat. 4 | Safety outputs, independent according to SIL 3, expandable to | Safety communication | Article No. |
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 | Safety, Sercos ASi-5/ASi-3 | Gateway with integrated Safety Monitor | IP20 | Sercos, OPC UA | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | Ethernet diagnostic | yes | yes | optional | 6 | 3 x 2 channels | max. 62 x 2 channels, max. 1922 in max. configuration | 6 release circuits, 6 x electronic safe outputs | max. 64, max. 1984 in max. configuration | safe Schneider drives over Sercos + Safe Link | BWU3861 ASi-5/ASi-3 safe Schneider drives over Sercos Gateway with integrated Safety Monitor, 2 ASi-5/ASi-3 masters |
| Safety, Sercos ASi-5/ASi-3 | Gateway with integrated Safety Monitor | IP20 | Sercos, OPC UA | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | Ethernet diagnostic | yes | yes | optional | 6 | 3 x 2 channels | max. 62 x 2 channels, max. 1922 in max. configuration | 6 release circuits, 6 x electronic safe outputs | max. 64, max. 1984 in max. configuration | CIP Safety over Sercos + Safe Link | BWU3860 ASi-5/ASi-3 CIP Safety over Sercos Gateway with integrated Safety Monitor, 2 ASi-5/ASi-3 masters |
 | Safety, Sercos ASi-5/ASi-3 | Gateway with integrated Safety Monitor | IP20 | Sercos, OPC UA | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | Ethernet diagnostic | yes | yes | optional | no local input | no local safe input | max. 62 x 2 channels, max. 1922 in max. configuration | no local safe output | max. 64, max. 1984 in max. configuration | CIP Safety over Sercos + Safe Link | BWU3845 ASi-5/ASi-3 CIP Safety over Sercos Gateway with integrated Safety Monitor, 2 ASi-5/ASi-3 masters |