The present invention relates to a method for automatic translation of ladder logic to a SMT-based model checker in a network comprising defining (10) the topology of the network as an enriched network topology based on packets exchanged in the network, extracting (20) a program from the packets relating to a PLC in the network and identifying inputs, outputs, variables and a ladder diagram of the PLC, translating (30) the inputs, outputs, variables and ladder diagram into a predefined formal model, wherein the predefined formal model is a circuit-like SMT-based model checker, and wherein the translating (30) comprises translating the set of data types of the program according to a predefined model set of data types of the circuit-like SMT-based model checker, translating the inputs of the PLC as model inputs of the circuit-like SMT-based model checker of the same type, translating the outputs of the PLC as model output latches of the circuit-like SMT-based model checker of the same type, translating the variables of the PLC as model variable latches of the circuit-like SMT-based model checker of the same type, translating comparators and arithmetic operators of the ladder diagram into a plurality of predefined model functions of the circuit-like SMT-based model checker, translating contacts and coils of the ladder diagram according to predefined model recursive procedures relating to the predefined model set of data types, the model inputs, the model output latches, the model variable latches and the plurality of predefined model functions, wherein the contacts are switches that can block or allow the flow of the current in a connection and each of the contacts is controlled by a Boolean input or variable, and wherein the coils are assignments to Boolean variables.

Provided are a program file writing and running processing method, device and system. In an embodiment, the system includes a program file writing processing device, a cloud end processing device and a program file running processing device. The program file writing processing device converts a program file written in a specific format specified by a provider into a program node description model that can be described by a universal description language and is used to represent a reference relationship between nodes in the program file, and then stores same in the cloud end processing device for a program runner to download and run; moreover, during downloading and running by the program runner, the program file running processing device converts same into a program file executable by the program runner based on the reference relationship between nodes in the program node description model for execution by the program runner.

A method for programmable logic controller (PLC) program randomization, the method comprising an engineering system computer receiving source code corresponding to a PLC program and compiling the source code into a plurality of functionally equivalent intermediate representations of the PLC program. Program structure of the PLC program is randomized during compilation such that each intermediate representation is unique among the plurality of intermediate representations. The engineering system computer transmits the plurality of intermediate representations to one or more PLCs.

The present invention relates to a method for automatic translation of ladder logic to a SMT-based model checker in a network comprising defining (10) the topology of the network as an enriched network topology based on packets exchanged in the network, extracting (20) a program from the packets relating to a PLC in the network and identifying inputs, outputs, variables and a ladder diagram of the PLC, translating (30) the inputs, outputs, variables and ladder diagram into a predefined formal model, wherein the predefined formal model is a circuit-like SMT-based model checker, and wherein the translating (30) comprises translating the set of data types of the program according to a predefined model set of data types of the circuit-like SMT-based model checker, translating the inputs of the PLC as model inputs of the circuit-like SMT-based model checker of the same type, translating the outputs of the PLC as model output latches of the circuit-like SMT-based model checker of the same type, translating the variables of the PLC as model variable latches of the circuit-like SMT-based model checker of the same type, translating comparators and arithmetic operators of the ladder diagram into a plurality of predefined model functions of the circuit-like SMT-based model checker, translating contacts and coils of the ladder diagram according to predefined model recursive procedures relating to the predefined model set of data types, the model inputs, the model output latches, the model variable latches and the plurality of predefined model functions, wherein the contacts are switches that can block or allow the flow of the current in a connection and each of the contacts is controlled by a Boolean input or variable, and wherein the coils are assignments to Boolean variables.

The present invention provides a method of treatment of a neuropsychiatric disorder characterized by repetitive phenotype, comprising administering to a human or non-human subject in need thereof a therapeutically effective dose of a pharmaceutical composition comprising at least one active agent selected from a group of active agents comprising CB2 receptor inverse agonists and mixed CB2/SERM ligands. The present invention further provides pharmaceutical compositions comprising 4-0-methylhonokiol, raloxifene, and their derivatives, HU-308 and/or BCP.

To decode a file name set to a PLC to the same name even if a plurality of external devices using different character-code sets are connected to the PLC, the PLC includes a system unit that actuates the control file using a multilingual character-code set A, a character-code conversion table that associates character codes relating to a plurality of character-code sets with one another for every character, and a character-code management unit that converts description of the name of the control file between the description relating to the multilingual character-code set A and that relating to the local character-code set A using the character-code conversion table when the name of the access-target control file is transferred between the external device using the local character-code set A and the system unit.