TL;DR: Two possible integration concepts of the PROFINET IO realtime Ethernet standard are described using INTERBUS and PROFIBUS as an example to show that it is possible, despite very different device models of the considered fieldbus systems, to implement a high level of integration.
Abstract: Ethernet has become so popular that it has also been further developed/or use at field level in automation technology under realtime conditions However, for reasons of function and investment protection, the introduction of realtime Ethernet in automation solutions is likely to be a gradual process Suitable solutions for the integration of existing fieldbus technology into the realtime Ethernet network are therefore required This paper describes two possible integration concepts of the PROFINET IO realtime Ethernet standard using INTERBUS and PROFIBUS as an example It shows that it is possible, despite very different device models of the considered fieldbus systems, to implement a high level of integration
TL;DR: An Input/Output Module (IOM) interfacing multiple computers attached to a dual system bus as discussed by the authors provides an interbus module which interfaces the dual-system bus to a sub-requestor bus connecting multiple subrequestor modules, allowing data transfers to/from a variety of peripherals using different data protocols and clock rates.
Abstract: An Input/Output Module (IOM) interfacing multiple computers attached to a dual system bus. The IOM provides an interbus module which interfaces the dual system bus to a sub-requestor bus connecting multiple sub-requestor modules. The sub-requestor modules control a plurality of interface adaptors permitting data transfers to/from a variety of peripherals using different data protocols and clock rates. The requirements for the main host processors and memories in a computer system would be unduly burdensome were it not for the relief from these overhead operations by the input/output module which provides the tailoring of data transfer capability to and from a multiplicity of peripherals having many different types of protocols and clock rates.
TL;DR: In this paper, a control and data transmission installation and a process for transmission of safety-related data in a control-and-data transmission installation of a field bus is described.
Abstract: A control and data transmission installation and a process for transmission of safety-related data in a control and data transmission installation. In accordance with the invention, safety procedures of existing field bus systems, particularly the interbus, are improved in such a way that there is no need either for additional lines for the transmission of control signals or redundant, safety-related units. In the inventive control and data installation, a master control device and a number of bus subscribers each include respective safety-related devices for carrying out predetermined safety functions. The safety-related devices can communicate with each other by way of a field bus.
TL;DR: In this paper, a plurality of serial bus loops are configurated in hierarchy with interbus linkage devices disposed between adjacent layers of the hierarchy, and the interbus devices control linkage among the plurality of bus loops and carry out routing control for a start command from the data processor to the I/O device.
Abstract: A multi-computer system includes a plurality of data processors and at least one I/O device which is commonly accessible by the data processors. A plurality of serial bus loops are configurated in hierarchy with interbus linkage devices disposed between adjacent layers of the hierarchy. The data processors are connected to a plurality of first layer serial bus loops and the I/O device which is commonly accessible by the data processors is connected to a second layer of serial bus loop. The interbus linkage devices control linkage among the plurality of serial bus loops and carry out routing control for a start command from the data processor to the I/O device, routing control for an interruption to report the end of I/O device operation, routing control for data transfer, routing control for a request interruption and exclusive use control of the shared I/O device.