Page back system and method for remote paging in a control system
DCFirst Claim
1. A system that facilitates communication between an industrial control device and a remote user device, comprising:
- an industrial control device that monitors information related to an industrial automation environment; and
a processor that receives information from the industrial control device, determines whether a trigger condition exists, associates a data variable with the trigger condition, and selectively constructs and transmits a least one pager message to the remote user device if a trigger condition exists.
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Abstract
The invention comprises a modem apparatus adapted to provide full messaging and communications interface between a control device and a communications medium such as a telephone line. The modem can comprise an interface adapted to communicate directly with a control system device, such as a programmable logic controller (PLC), using a communications protocol compatible with the normal network communications used in a distributed control system. The apparatus advantageously interfaces directly with unmodified control system devices, providing the ability to send and receive messages from remote devices or personnel via a communications medium. The invention also comprises a control system including a modem device providing full communications between a control device and remote personnel and/or devices. The apparatus can further be operative to monitor certain control conditions via communications with the control device, and to create and transmit messages across a communications medium according to the monitored control conditions.
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Citations
17 Claims
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1. A system that facilitates communication between an industrial control device and a remote user device, comprising:
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an industrial control device that monitors information related to an industrial automation environment; and a processor that receives information from the industrial control device, determines whether a trigger condition exists, associates a data variable with the trigger condition, and selectively constructs and transmits a least one pager message to the remote user device if a trigger condition exists. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for communicating between an industrial control device and a remote user device, comprising:
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receiving information related to an industrial automation environment from the industrial control device; determining whether received information indicates a trigger condition; associating a data variable with an extant trigger condition; selectively constructing a pager message comprising a text string and the data variable; and transmitting the pager message to the remote user device. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A system that facilitates communication between an industrial control device and a remote user device and selective reprogramming of the industrial control device, comprising:
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means for detecting extant trigger conditions in an industrial automation environment; means for assigning a data variable to the trigger condition; means for translating information indicative of the extant trigger condition into at least one pager message; and means for transmitting the at least one pager message to a remote user device to alert a user to the extant trigger condition. - View Dependent Claims (15, 16, 17)
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Specification