摘要:
The invention relates to a microcontroller system comprising a microcontroller (1), a device (3) that can be controlled by the microcontroller (1), and a monitoring unit (2). Under the control of a normal operating program (7), the microcontroller (1) emits a normal operating display signal (W). In the absence of the normal operating display signal (W), the monitoring unit (2) transfers the device (3) into a secure state and locks it in said state for a pre-determined period of time. When pre-determined exceptional conditions come into play, the microcontroller (1) turns to an operating preparation program (6), and the monitoring unit (2) increments a register (17). When the content of the register (17) reaches a pre-determined value, the monitoring unit (2) locks the device (3) in the secured state.
摘要:
A document inserter has an improved control arrangement. The document inserter has a system for orderly shut-down and re-start. The system comprises a first web module for receiving the first web, scanning the sprocket strips of the first web for control information, removing the sprocket strips, storing and retransmitting the control information, separating the web into discrete forms, forming accumulations of the discrete forms, and feeding said accumulations for further processing by the system. The system further includes a second web module for receiving a second web, separating the second web into discrete forms, forming second accumulations of the second discrete forms, and feeding the second accumulations synchronously with the first accumulations for further processing by the system. The system is controlled by a supervisory control system which includes a non-volatile memory, which supervisory control system receives the retransmitted control information and controls the operation of the system. The supervisory control system is further responsive to a shut-down signal to complete operations in accordance with control information from control forms which have been separated from the first web, receive from the first web module the control information associated with unseparated control forms from which the sprocket strips have been removed, store this information in the non volatile memory, and halt operation of the system. The supervisory control system is further responsive to a restart signal to read the stored information from the non-volatile memory and restart operations in accordance with the stored information to complete processing of the control documents from which the control information has been removed.
摘要:
The present invention relates to the provision of a modular control system for a glass forming machine. The glass forming machine control system comprises one central control unit (20) and one machine control unit (22), which are connected via a high-speed data bus (32). The machine control unit (22) is spread out to a plurality of peripheral control units (24, ..., 30) via a plurality of high-speed data buses (34, ..., 40). The machine control unit (22) is adapted to distribute control signals received from the central control unit (20) to the peripheral control units (24, ..., 30) in real time.
摘要:
An interface connector system includes a signal bus (18) connected to a control (12, 14) and, via a plurality of interface and connector devices (20), to load components for conveying signals between the control and the load components. Each of the interface and connector devices including address recognition circuitry (36) as well as programmable configuration selection logic (40, 44) to adapt the electrical configuration of the device to respond to a variety of load components. In addition, the signal bus and connector devices are adapted to recognize and convey various levels of signals, for example, different voltage levels representing control information, framing signals, and diagnostic command signals.
摘要:
An interface connector system includes a signal bus (18) connected to a control (12, 14) and, via a plurality of interface and connector devices (20), to load components for conveying signals between the control and the load components. Each of the interface and connector devices including address recognition circuitry (36) as well as programmable configuration selection logic (40, 44) to adapt the electrical configuration of the device to respond to a variety of load components. In addition, the signal bus and connector devices are adapted to recognize and convey various levels of signals, for example, different voltage levels representing control information, framing signals, and diagnostic command signals.
摘要:
A diagnostic system and method for a field device implemented in a safety instrumented system includes detecting an occurrence of a safety event associated with the field device, overriding normal control of the field device to cause the field device to enter a safe state in response to the detected occurrence of the safety event, verifying the override of normal control of the field device, and transmitting a control signal to cause the field device to enter the safe state.
摘要:
The invention relates to a microcontroller system comprising a microcontroller (1), a device (3) that can be controlled by the microcontroller (1), and a monitoring unit (2). Under the control of a normal operating program (7), the microcontroller (1) emits a normal operating display signal (W). In the absence of the normal operating display signal (W), the monitoring unit (2) transfers the device (3) into a secure state and locks it in said state for a pre-determined period of time. When pre-determined exceptional conditions come into play, the microcontroller (1) turns to an operating preparation program (6), and the monitoring unit (2) increments a register (17). When the content of the register (17) reaches a pre-determined value, the monitoring unit (2) locks the device (3) in the secured state.