Automatic running programmable logic controller (PLC) program interlocking fault quick recognition method of coke oven locomotive
A technology of automatic operation and identification method, applied in the direction of program control, electrical program control, program control in sequence/logic controllers, etc., can solve problems such as production interruption
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[0016] This embodiment is a quick identification method for PLC interlocking faults in the automatic operation of coke oven locomotives. The process is as follows figure 1 The coke oven locomotive shown is divided into multiple operation steps by its own PLC, and each operation step is divided into multiple operation processes by the PLC for automatic operation. Each operation process has an interlock condition, and the interlock fault is performed according to the following steps Quick identification:
[0017] (1) Set a 16-bit binary integer word or 32-bit binary double integer word for each operating process of each operating step set by the PLC of the coke oven locomotive, and perform interlocking in each process according to the sequence in the process control The conditions are listed, and each interlocking condition is assigned to each bit of the binary word;
[0018] (2) Set each interlocking condition to be assigned a value of "0" in a non-fault state, and to be assig...
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