초록 ▼

This invention relates to a programmable logic controller inputs-outputs system comprising a processing unit (CPU) provided with a memory (M1, M2, M3) and at least one inputs-outputs coupler (C1 or C2 or C3 or C4) provided with a coupler memory (Mc) and forming the link between sensors and pre-actua

This invention relates to a programmable logic controller inputs-outputs system comprising a processing unit (CPU) provided with a memory (M1, M2, M3) and at least one inputs-outputs coupler (C1 or C2 or C3 or C4) provided with a coupler memory (Mc) and forming the link between sensors and pre-actuators and the processing unit (CPU) characterized in that exchanges between the processing unit memory and each coupler memory are structured by logical channels carrying out a job function and grouping all or some physical channels of a coupler and in that the memory (M2) of the processing unit (CPU) contains objects related to each logical channel that form a data structure with standardized contents, these objects being exchanged with the coupler memory (Mc) through a user program by means of an instruction set.

대표청구항 ▼

[ We claim:] [1.] A programmable logic controller input/output system comprising:a processor havinga processor memory including a read only memory and a random access memory andat least one input/output coupler, each one of the at least one input/output coupler having a coupler memory and providing

[ We claim:] [1.] A programmable logic controller input/output system comprising:a processor havinga processor memory including a read only memory and a random access memory andat least one input/output coupler, each one of the at least one input/output coupler having a coupler memory and providing a link between the processor and at least one of a sensor and a pre-actuator;at least one logical channel for grouping a plurality of physical channels of one of the at least one input/output coupler, one of the at least one logical channel having at least one ofa means for performing a sensor job function anda means for performing a pre-actuator job function;a plurality of objects stored in the random access memory, each one of the plurality of objects related to one of the at least one logical channel and forming a data structure having standardized contents; anda user program using an instruction set for exchanging the plurality of objects with contents of the coupler memory.