Pepperl+Fuchs offers the largest variety of AS-Interface bus products and support in the market. AS-Interface bus is a low cost alternative for efficiently communicating between a DCS or PLC and digital/discrete I/O devices. Pepperl+Fuchs products include a variety of power, cable, repeater and protection options.
The master with gateway function controls the AS-Interface system and transmits process data to all types of higher-level control in a standardized I/O map. The AS-Interface adopts the role of a conventional I/O card in the controller, which allows a simple changeover to the AS-Interface system. The stainless steel master/gateway manages communication with the slaves and informs the PLC of faults. All diagnostic information from the field I/O and the safety system can be transmitted to a higher level control system. The safety logic of a master with safety monitor can be set either by a safe PLC or decentralized via the configuration software VAZ-SW-SIMON +.
Each AS-Interface segment requires one AS-Interface power supply (VAN-…) with 30.5 V DC voltage and data decoupling to provide power and send modulated signals along a cable without interference. Control cabinet power supplies are available with 2.8 A, 4 A, or 8 A for high efficiency. The AS-Interface K19 is a NEC Class 2 power supply. The ground fault monitor is already integrated in the 4 A K27 AS-Interface power supply. With appropriately equipped master/gateway you can operate up to two AS-Interface segments with a standard 30 V DC power supply.
"AS-Interface Safety at Work" relates to safe communication in the AS-Interface network according to the most recent Machinery Directive. The highest safety class SIL3/PL e can be achieved with this globally utilized safety system, allowing safety systems without the need for a safety PLC. All known safety devices can be connected directly to the AS-Interface segment via modules or as an integral solution. The AS-Interface safety concept can be modified flexibly and decentralized. Logical links can be defined through the configuration software VAZ-SW-SIMON+.
The G10 is the world’s smallest IP68/69K AS-Interface module; the one-piece housing mounts quickly and securely using a single stainless steel screw. We also offer safety modules in the G10 design. G11 field modules offer an innovative seal concept in a robust, compact, round design and are particularly suitable for machine builders and harsh and process environments. In the G11 design, we can also offer you various analog modules. G12 flat modules are extremely easy to connect and can be replaced with a minimum of fuss in the event of a fault. The G12 has a one-piece housing with a cable guide that reduces installation times considerably.
Pepperl+Fuchs offers a wide selection of sensor types with integrated AS-Interface. Different designs are available with NC or NO contact function. Sensors with AS-Interface provide additional functions such as a failure warning indication and coil breakage indication. On photoelectric sensors, parameters can be used for light-on/dark-on switching. Pepperl+Fuchs rotary encoders are fitted with 4 AS-Interface chips that enable the transfer of 16 bits during every cycle. Special sensor designs with two input signals for “open”/“closed” are available for position monitoring. Power for the valve solenoid and the sensors is supplied from AS-Interface. Vibration forks with integrated AS-Interface are used for fill level monitoring.
Pepperl+Fuchs offers a wide selection of sensor types with integrated AS-Interface. Different designs are available with NC or NO contact function. Sensors with AS-Interface provide additional functions such as a failure warning indication and coil breakage indication. On photoelectric sensors, parameters can be used for light-on/dark-on switching. Pepperl+Fuchs rotary encoders are fitted with 4 AS-Interface chips that enable the transfer of 16 bits during every cycle. Special sensor designs with two input signals for “open”/ “closed” are available for position monitoring. Power for the valve solenoid and the sensors is supplied from AS-Interface. Vibration forks with integrated AS-Interface are used for fill level monitoring.
Aside from our AS-Interface key components, we provide you with different products enabling easy installation and operation of your AS-Interface system. G10 splitter boxes are required for flat cable branching, connecting modules, and connecting integrated AS-Interface end devices. For quick and convenient commissioning, our special handheld device is the right choice. Flat cable for AS-Interface and AUX is available in different lengths, diameters, and materials. Our control software and various M8 and M12 connectors round out this product range.
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