Safety Monitor

The Safety Monitor enables safe transmission and processing of safety relevant data from safety input modules and safe shut-off of safety output modules remotely over ASi right where the potentially hazardous motion takes place. And always PLe compliant.
Bihl+Wiedemann offers the Safety Monitor for ASi Safety at Work as a stand-alone device for expanding existing ASi circuits with safety modules. For new systems we can provide our ASi-3 resp. ASi-5/ASi-3 gateways with integrated Safety Monitor and interfaces for the most commonly used automation systems using the most efficient method for safely constructing 1 or 2 ASi circuits at the same time. Even large applications with up to 1922 safety I/Os can be implemented with these devices using our “Safe Link over Ethernet” technology by connecting multiple gateways safely over Ethernet/Profinet.
For small applications with three or more safe signals you should consider our Safety Basic Monitor, a compact safety controller without gateway but with configurable status outputs. The module allows for universal expansion and is also ideal as a head station for special safety applications.

The Safety Monitor enables safe transmission and processing of safety relevant data from safety input modules and safe shut-off of safety output modules remotely over ASi right where the potentially hazardous motion takes place. And always PLe compliant.
Bihl+Wiedemann offers the Safety Monitor for ASi Safety at Work as a stand-alone device for expanding existing ASi circuits with safety modules. For new systems we can provide our ASi-3 resp. ASi-5/ASi-3 gateways with integrated Safety Monitor and interfaces for the most commonly used automation systems using the most efficient method for safely constructing 1 or 2 ASi circuits at the same time. Even large applications with up to 1922 safety I/Os can be implemented with these devices using our “Safe Link over Ethernet” technology by connecting multiple gateways safely over Ethernet/Profinet.
For small applications with three or more safe signals you should consider our Safety Basic Monitor, a compact safety controller without gateway but with configurable status outputs. The module allows for universal expansion and is also ideal as a head station for special safety applications.
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Fieldbus interface
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Safety communication
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Inputs Safety, SIL 3, Cat. 4
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Outputs Safety, SIL 3, cat. 4
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ASi-5/ASi-3
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Number of ASi networks, number of ASi Master
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Integrated decoupling, ASi current measurement in the gateway
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PROFINET, OPC UA | PROFIsafe (F-CPU) + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
PROFINET, OPC UA | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
PROFINET, OPC UA | PROFIsafe (F-CPU) + Safe Link | no local safe input | no local safe output | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
PROFINET, OPC UA | PROFIsafe (F-CPU) + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 1 ASi network, 1 ASi-5/ASi-3 Master | yes, max. 4 A/ASi network | |
PROFINET, OPC UA | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 1 ASi network, 1 ASi-5/ASi-3 Master | yes, max. 4 A/ASi network | |
PROFINET, OPC UA | PROFIsafe (F-CPU) + Safe Link | no local safe input | no local safe output | ASi-5 + ASi-3 compatible | 1 ASi network, 1 ASi-5/ASi-3 Master | yes, max. 4 A/ASi network | |
PROFINET, OPC UA | Safe Link | no local safe input | no local safe output | ASi-5 + ASi-3 compatible | 1 ASi network, 1 ASi-5/ASi-3 Master | yes, max. 4 A/ASi network | |
PROFINET | PROFIsafe (F-CPU) + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | yes, max. 4 A/ASi network | |
PROFINET | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | yes, max. 4 A/ASi network | |
PROFINET | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
PROFINET | PROFIsafe (F-CPU) | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
EtherNet/IP + ModbusTCP, OPC UA | CIP Safety over EtherNet/IP + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
EtherNet/IP + ModbusTCP, OPC UA | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
EtherNet/IP + ModbusTCP, OPC UA | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 1 ASi network, 1 ASi-5/ASi-3 Master | yes, max. 4 A/ASi network | |
EtherNet/IP + ModbusTCP, OPC UA | CIP Safety over EtherNet/IP + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | yes, max. 4 A/ASi network | |
EtherNet/IP + ModbusTCP | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | yes, max. 4 A/ASi network | |
EtherNet/IP + ModbusTCP | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | no, max. 8 A/ASi network, redundant supply | |
EtherNet/IP + ModbusTCP | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
EtherCAT, OPC UA | FSoE + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
EtherCAT, OPC UA | FSoE + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 1 ASi network, 1 ASi-5/ASi-3 Master | yes, max. 4 A/ASi network | |
EtherCAT, OPC UA | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 1 ASi network, 1 ASi-5/ASi-3 Master | yes, max. 4 A/ASi network | |
EtherCAT | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | yes, max. 4 A/ASi network | |
EtherCAT | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
BACnet/IP, OPC UA | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | yes, max. 8 A/ASi network | |
BACnet/IP, OPC UA | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | no, max. 8 A/ASi network, redundant supply | |
POWERLINK, OPC UA | openSAFETY over POWERLINK + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
POWERLINK, OPC UA | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
POWERLINK | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | yes, max. 4 A/ASi network | |
POWERLINK | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
Sercos, OPC UA | safe Schneider drives over Sercos + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
Sercos, OPC UA | CIP Safety over Sercos + Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
Sercos, OPC UA | CIP Safety over Sercos + Safe Link | no local safe input | no local safe output | ASi-5 + ASi-3 compatible | 2 ASi networks, 2 ASi-5/ASi-3 Masters | yes, max. 4 A/ASi network | |
PROFIBUS | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 2 ASi networks, 2 ASi-3 Masters | yes, max. 4 A/ASi network | |
PROFIBUS | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
PROFIBUS | PROFIsafe (F-CPU) | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
CANopen | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
CC-Link | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
DeviceNet | Safe Link | 3 x 2 channels | 6 release circuits, 6 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 4 A/ASi network | |
ASi monitors | Safe Link | 3 x 2 channels, input 3 optional for speed monitor (up to 4 kHz) | 2 release circuits, 2 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 0,5 A/ASi network, max. 8 A with ASi power supply | |
ASi monitors | - | 4 x 2 channels, inputs 3+4 optional for speed monitor (up to 4 kHz) | 2 release circuits, 2 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 0,5 A/ASi network, max. 8 A with ASi power supply | |
ASi monitors | - | 4 x 2 channels, inputs 3+4, compatible as replacement with consortial monitor | 2 release circuits, 2 x electronic safe outputs | ASi-3 compatible | 1 ASi network, no ASi Master, ASi Monitor | no, max. 8 A/ASi network | |
ASi monitors | - | 4 x 2 channels, inputs 3+4 optional for speed monitor (up to 4 kHz) | 2 release circuits, 2 x electronic safe outputs | ASi-3 compatible | 1 ASi network, 1 ASi-3 Master | yes, max. 0,5 A/ASi network, max. 8 A with ASi power supply |