摘要:
A method for data transmission between participants communicating by means of a data bus, in which as high a transmission likelihood for additional data as possible is to be assured by providing that in the exchange of data telegrams between the participants within the cycle time 13a predetermined for one transmission cycle 13, at least one first and at least one second time slot 11, 12 are used, and the first time slot 11 serves to forward process data and the second time slot 12 serves to forward additional data, and the length of the data telegrams representing the additional data is predeterminable within the length of the corresponding time slot 12.
摘要:
The present invention relates to a method for operating a shaftless printing press (1), in which a product (5) is processed during a processing operation by at least one processing device (4a, 4b, 4c), wherein the processing device has at least one driven processing axle (6) as well as at least one further driven axle (11); a processing length (13) of the product (5) is capable of being predetermined by means of the rotary speed (1a, 1b) of the at least one processing axle (6); and the rotary speed (1a, 1b) of the at least one further driven axle (11) is predetermined as a function of the set-point rotary speed (1a, 1b) of the at least one processing axle (6). The present invention further relates to a corresponding printing press, a corresponding computer program, and a corresponding computer program product.
摘要:
The present invention relates to a method for dynamically adjusting at least one printing press module of a printing press (100), in order to correct a first register. Only the first register is changed. Further registers are decoupled from this dynamic adjustment by coupling correction values (146, 148, 150) for further printing press modules with consideration for dynamic time elements (140, 142, 144).
摘要:
A method for carrying out a printing correction and a device for this. A method for carrying out a printing correction is provided, a product being printed on during a processing procedure by a plurality of processing devices, positions of two printing marks A,B,C,D being recorded. The positions of the printing marks A,B,C,D are evaluated and an automated correction of the print is carried out in the light of the positions of the printing marks A,B,C,D, the correcting including a correcting of a printing length. Furthermore, an apparatus is provided for carrying out the method.
摘要:
For operating a network having a primary station and at least two secondary stations, the primary station communicates with the at least two secondary stations, and the at least two secondary stations communicate with one another to furnish a cross communication, and the cross communication is effected by telegrams which are generated in the context of communications cycles.
摘要:
The invention relates to a subscriber (1) for using in a communication system, and to a communication system (5) which, at least in a partial section, has redundant communication for increasing the fault tolerance, the communication system being simultaneously highly dynamic. Said communication system comprises, at least in one section, at least two communication paths (10, 20) which are preferably arranged according to a double ring topology. The inventive subscriber comprises one processing unit (11, 21) per communication path, for processing the information signals obtained by means of the respective communication path and/or for producing and sending information signals via the respective communication path. Furthermore, a first activatable coupling (13, 22) is arranged in the subscriber, between the first communication path (10) and the second communication path (20), in such a way that, when the coupling is activated, the information signals are tapped from the first communication path (10) and supplied to the second communication path (20). According to the invention, the supply of the activatable coupling in the subscriber is carried out in the signal feeding direction, downstream of the processing unit (21) of the second communication path (20).
摘要:
A communication system consisting of network nodes for operating industrial machines and a method for controlling a communication system. The invention relates to a communication system consisting of network nodes (1, 2, 3, 4, 5) belonging to a control and/or drive network (11, 12) wherein control and/or regulating signals are exchanged between network nodes via a closed ring-shaped signal line (6,7) in order to operate industrial machines. A network node (2) exchanges signals with at least one other network node (1, 3) via a bi-directional signal path. At least one network node (2) comprises a switching unit (8) which can be connected to two other network nodes via two bi-directional signal paths (10). The communication system can by configured to form various networks (11,12) by means of a corresponding switching position of the switching units of the network nodes, said networks (11, 12) being provided with separate signal lines (6,7).
摘要:
A method for allocating a device address in a network to a substation connected by a point-to-point connection includes transmitting an initialization message from a main station to a substation, which message contains a part of the device address, determining a set communication address of the substation, generating a complete device address based on a received part of the device address and based on the communication address, and transmitting a response mesasge from a device to the main station, which response message contains an address selected from the group consisting of the communication address, the device address, and both.
摘要:
A method for register correction in machines for processing webs of material includes providing at least one transport shaft and at least one processing shaft cooperating with the at least one transport shaft, driving the shafts synchronously with one another each by an individual drive mechanism, obeying by at least one shaft a chronological guide shaft function which corresponds to an instantaneous position of a guide shaft, correcting a plurality of register-tracking shafts formed by the transport shafts in accordance with a scan of register marks or the web of material relative to the guide shaft function, effecting only one common scanning for one group of the register-tracking shafts which correspond to one another in term of the register correction, and deriving from the only one common scanning a common correction function that all of the register-tracking shafts of the group obey.
摘要:
A method of setting web tensioning in a processing machine for processing a material web, in particular in a shaftless printing machine, wherein, for the purpose of setting the web tensioning in a first web-tensioning portion, which is bounded upstream by a first clamping location and downstream by a second clamping location, the first clamping location is given a control command, and at least one clamping location which is located upstream of the first clamping location, as seen over the course of the web tensioning, and at least one clamping location which is located downstream of the second clamping location, as seen over the course of the web tensioning, are precontrolled in dependence on the first control command, where the second clamping location is not adjusted.