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TURCK AS-interface (commonly referred to as AS-I) is a low-level I/O interface system. It was originally intended to be a simple, low cost system that would be easy to install and maintain. With that philosophy in mind, the original developers designed AS-I as a discrete-only two-wire system. It incorporated features like automatic station addressing, and power and data were carried on a single untwisted pair of wires.

AS-I can be used as a stand alone network or can be connected to a higher level system, such as DeviceNet or PROFIBUS -DP, through a gateway. The gateway acts as a slave to the higher system and a master to the AS-I system.

If you are looking for TURCK AS-Interface Industrial I/O, please call us on (800) 894 - 0412 or email us at info@clrwtr.com we will do our best to help you find the TURCK AS-Interface Input Stations that you are looking for at competitive prices. If you are searching for TURCK AS-Interface Output Stations technical information (data-sheets) please use the datasheets or product selection guide page links.

TURCK DeviceNet is a low-cost communications protocol that eliminates hard wiring and connects industrial devices such as limit switches, photoelectric sensors, valve manifolds, motor starters, process sensors, Barcode Readers, variable frequency drives, displays & operator interfaces to a network. DeviceNet's direct connection provides improved communication between devices, as well as important device-level diagnostics not easily accessible or available through hard-wired I/O interfaces.

DeviceNet is based on the Controller Area Network (CAN) broadcast-oriented communication architecture. CAN uses a bus arbitration method, CSMA/BA, that assures the highest priority message always gets use of the bus in the event of a data collision. The DeviceNet protocol further defines message priorities such that I/O messages are given top priority and configuration messages have lower priority.

TURCK PROFIBUS-DP is an industrial network protocol that connects field I/O devices in order to eliminate hard wiring. The network connection increases device-level diagnostic capabilities, while also providing high-speed communication between devices. PROFIBUS-DP is based on the RS-485 serial data transfer standard. In most cases, the termination and physical media rules for PROFIBUS-DP are the same as those required for RS-485 communication. A PROFIBUS-DP network supports up to 126 nodes and virtually an unlimited amount of I/O.

The bus uses a trunkline/dropline topology. Power and communication are provided via separate cables, allowing easy segmentation of the power structure to avoid overloading. PROFIBUS-DP is capable of running at data rates as high as 12 Mbaud. When used at high data rates, the cable drop length from the trunk to a node is severely limited. For example, when used at 12 Mbaud, nodes must be directly connected to the trunk, with no drop length allowed.

TURCK PROFIBUS-PA (Process Automation) uses synchronous transfer mode technology, as defined in IEC 61158-2, to communicate between field devices and the RS 485 backbone of PROFIBUS-DP. A segment coupler, or gateway is installed to bridge PROFIBUS-DP with PROFIBUS-PA. Otherwise, the protocols are identical, allowing transparent communication between general purpose automation systems and decentralized field devices. PROFIBUS-PA is a master-slave bus. Transmitters used in the process industry are typically slave devices or passive stations which only communicate at the request of the master.

TURCK Ethernet is the most popular protocol used to connect office computers and peripherals today. It is increasingly finding its way into other applications, and is rapidly becoming the network of choice for higher level industrial control applications. Ethernet is primarily used to connect PLCs, Computers, MMI displays and other high level components. A typical Ethernet system consists of the following parts:

• Controller
• Switches
• Ethernet I/O modules
• Ethernet cable
• Power supply

TURCK FOUNDATION fieldbus is a communication protocol and physical method to interconnect smart devices such as Temperature Transmitters, Pressure Transmitters and valve actuators. The physical layer conforms to ISA SP50.02 and IEC 1158-2 standards for fieldbuses. Fieldbus technology allows many smart devices to share one communication medium. The digital communication signal is superimposed onto a DC carrier. This reduces the amount of terminations to connect all the field devices to a host system and allows greater flexibility for future additions of I/O points. A FOUNDATION fieldbus device is addressable and can store and transmit data. The devices can store values, track changes and use pre-set alarms to trigger. Based on pre-defined tag names host systems can read transmitter values such as temperature and pressure to set values of a valve actuator.

TURCK CANopen is a higher-layer system based on the CAN (controller area network) specification that defines device and communication profiles. Device profiles standardize the data contents of the various supported device types, while communication profiles determine the method of data exchange between the devices. The basic communication methods are real time data (process data objects - PDO) and parameter data (service data objects - SDO).

CANopen allows node addresses from 1 to 126. TURCK stations are typically addressed via two or three decimally coded rotary switches. In situations where two switches are used, the node may only be addressed as high as 99. The system speed corresponds to the transmission rate set via the master, and is automatically detected by the piconet modules (auto baud).

TURCK's new BL20 Motor Starter economy module utilizes SWIRE technology to provide daisy-chain connection from a single I/O slice to each motor starter via a ribbon cable. The BL20 motor starter module is available in sizes ranging from .08 to 20 horsepower, both direct and reversing, for use on DeviceNet, PROFIBUS, CANopen, EtherNet/IP and Modbus TCP/IP networks with both standard and programmable gateways. Trip indication may also be added to any motor starter. The BL20 motor starter module complies with industrial switchgears standards IEC/EN 60947-4-1 and carries an IP 20 environmental protection rating.

TURCK's BL20 system consists of a gateway, base modules and electronic modules. I/O modules are configured independent of the fieldbus protocol, and up to 72 I/O modules may be connected to a gateway. This equates to systems that may include up to 1,152 digital I/O points or 288 analog channels.

TURCK BL67 combines all the flexibility of an in-the-cabinet PLC I/O System with modularity, ruggedness and connectorization. BL67 complements the AIM, BL20 and piconet product families to meet the needs of unique applications, such as small machine or conveyor systems requiring IP 67 protection.

The BL67 modular concept is a very flexible approach to connectorized I/O. The gateway, base and electronic modules provide many benefits to the user. BL67's openness, flexibility, connectorization, compact housing and ruggedness provide a viable alternative to in-the-cabinet I/O. BL67 stations consist of a gateway and a maximum of 32 modules (equivalent to 1 m station length). Some high-tech and analog I/O modules may consume or produce large amounts of data, and therefore may limit the number of modules that may be used per system.

TURCK BL20 modular concept is a very flexible approach to terminal-wired I/O. The gateway, base and electronic modules provide many benefits to the user.

• The gateway provides communication between the fieldbus and I/O modules; modules are not dependent on the fieldbus protocol.
• DIN-Rail mountable base modules are available with different wiring configurations to suit the user's needs.
• Electronic modules are hot swappable.
• Power distribution modules can be used to create isolated power segments within the system.
• BL20's openness and flexibility provide a viable alternative to traditional PLC I/O.

TURCK piconet combines the rugged connectorized concept of TURCK's AIM stations with the modular I/O concept of the BL20 and BL67 systems. piconet stations are IP 67 rated and designed to be mounted directly on the machine with no need for a separate enclosure. Like the BL (BL20, BL67) systems, piconet consists of a gateway with connected I/O modules, but instead of connecting the I/O to a fixed backplane, piconet uses a distributed fiber-optic ring to communicate between the gateway and I/O.

piconet stations are available as stand alone units for DeviceNet, PROFIBUS -DP and CANopen systems. Subnetwork systems offer a very flexible approach to connectorized I/O, while allowing individual stations to be mounted as close as possible to I/O devices. Up to 255 extension modules may be connected to one gateway, with no more than 15 m of fiber-optic cable between each module.

TURCK piconet combines the rugged connectorized concept of TURCK's AIM stations with the modular I/O concept of the BL20 and BL67 systems. piconet stations are IP 67 rated and designed to be mounted directly on the machine with no need for a separate enclosure. Like the BL (BL20, BL67) systems, piconet consists of a gateway with connected I/O modules, but instead of connecting the I/O to a fixed backplane, piconet uses a distributed fiber-optic ring to communicate between the gateway and I/O.

piconet stations are available as stand alone units for DeviceNet, PROFIBUS -DP and CANopen systems. Subnetwork systems offer a very flexible approach to connectorized I/O, while allowing individual stations to be mounted as close as possible to I/O devices. Up to 255 extension modules may be connected to one gateway, with no more than 15 m of fiber-optic cable between each module.