Management board, interface module, industrial control server, and industrial control system

An interface module, comprising an expansion board and a management board, wherein the expansion board is connected to any interface on the management board via an expansion board socket and expands any interface into a plurality of identical interfaces, and the management board and the expansion board are packaged in a management box;

• the management board comprises:
• a first interface signal control unit, wherein the first interface signal control unit is connected to a mainboard via a bus;
• a second interface signal control unit, wherein the second interface signal control unit is connected to the mainboard via the bus, and the second interface signal control unit is connected to the first interface signal control unit to acquire an operating state of the first interface signal control unit;
• an interface unit, wherein the interface unit is provided with at least one interface;
• and
• a gating unit, wherein one gating end of the gating unit is connected to the first interface signal control unit and the interface unit to form a first interface path, the other gating end of the gating unit is connected to the second interface signal control unit and the interface unit to form a second interface path, and a gating control end of the gating unit is connected to the second interface signal control unit, wherein
• the second interface signal control unit is configured to select the first interface path or the second interface path according to the operating state;
• wherein the first interface path and the second interface path both comprise universal asynchronous receiver/transmitter (UART) serial port paths;
• the first interface signal control unit comprises a master chip, the second interface signal control unit comprises a microprocessor, the gating unit comprises a first gating chip, and the interface unit comprises a serial port transceiver and at least one first serial port connector;
• the master chip is connected to the microprocessor via a serial peripheral interface (SPI) bus and/or an inter-integrated circuit (I2C) bus;
• and
• a UART pin of the master chip and a UART pin of the microprocessor are respectively connected to two gating ends of the first gating chip, a gating control end of the first gating chip is connected to a first universal input/output pin of the microprocessor, a common input/output end of the first gating chip is connected to one end of the serial port transceiver, and the other end of the serial port transceiver is connected to the at least one first serial port connector via a UART serial port bus.

An industrial control server, comprising:

• a plurality of interface modules, wherein the interface modules are all disposed at a front window of an industrial control server chassis, and each interface module comprises at least one input/output interface that is configured to receive operating data from an industrial device;
• a computing module, wherein the computing module is detachably connected to each interface module via a cable, and is configured to perform an operation on the operating data to generate a control instruction, and return the control instruction to the industrial device via a target input/output interface that receives the operating data;
• and
• a power supply module, wherein the power supply module is disposed at a rear window of the industrial control server chassis, is detachably connected to the interface module and the computing module, and is configured to supply power to the interface module and the computing module, respectively;
• each interface module comprises:
• an expansion board and a management board, wherein the expansion board is connected to any interface on the management board via an expansion board socket and expands any interface into a plurality of identical interfaces, and the management board and the expansion board are packaged in a management box;
• the management board comprises:
• a first interface signal control unit, wherein the first interface signal control unit is connected to a mainboard via a bus;
• a second interface signal control unit, wherein the second interface signal control unit is connected to the mainboard via the bus, and the second interface signal control unit is connected to the first interface signal control unit to acquire an operating state of the first interface signal control unit;
• an interface unit, wherein the interface unit is provided with at least one interface;
• and
• a gating unit, wherein one gating end of the gating unit is connected to the first interface signal control unit and the interface unit to form a first interface path, the other gating end of the gating unit is connected to the second interface signal control unit and the interface unit to form a second interface path, and a gating control end of the gating unit is connected to the second interface signal control unit, wherein
• the second interface signal control unit is configured to select the first interface path or the second interface path according to the operating state;
• wherein the first interface path and the second interface path both comprise universal asynchronous receiver/transmitter (UART) serial port paths;
• the first interface signal control unit comprises a master chip, the second interface signal control unit comprises a microprocessor, the gating unit comprises a first gating chip, and the interface unit comprises a serial port transceiver and at least one first serial port connector;
• the master chip is connected to the microprocessor via a serial peripheral interface (SPI) bus and/or an inter-integrated circuit (I2C) bus;
• and
• a UART pin of the master chip and a UART pin of the microprocessor are respectively connected to two gating ends of the first gating chip, a gating control end of the first gating chip is connected to a first universal input/output pin of the microprocessor, a common input/output end of the first gating chip is connected to one end of the serial port transceiver, and the other end of the serial port transceiver is connected to the at least one first serial port connector via a UART serial port bus.