DSQC662 Signal board under the ABB DeviceNet bus

product description：

Extended product type :MLink
Product number :DSQC662
Directory description: Communication gateway
Long description :MLink(Hardware version 2, Fieldbus :Profibus, Modbus RTU/TCP, PROFINET IO)

Gateway (Gateway) is also known as the internetwork connector, protocol converter. The gateway is the most complex network interconnection device at the transport layer and is only used for the interconnection of two networks with different high-level protocols. The structure of the gateway is also similar to that of the router, except for the interconnection layer. Gateways can be used for both WAN and LAN interconnection. A gateway is a computer system or device that acts as a transformational task. A gateway is a translator between two systems that use different communication protocols, data formats, or languages, or even completely different architectures. Unlike a bridge, which simply conveys information, a gateway repackages the information it receives to fit the needs of the destination system. At the same time, gateways can also provide filtering and security functions. Most gateways run on the top layer of the OSI Layer 7 protocol – the application layer.

As we all know, to go from one room to another, you must pass through a door. Similarly, sending information from one network to another must also pass through a “gateway”, which is a gateway. As the name suggests, a Gateway is a “gateway” through which one network connects to another.

Is the half gateway a connection-oriented gateway or a connectionless gateway? From which Angle does the semi-gateway classify the gateway?

In OSI, there are two types of gateways: connection-oriented gateways and connectionless gateways. When there is a certain distance between two subnets, a gateway is often divided into two halves, and the middle is connected with a link, we call it a half gateway.

According to different classification standards, there are many kinds of gateways. The gateway in the TCP/IP protocol is the most commonly used, and the “gateway” we talk about here refers to the gateway under the TCP/IP protocol.

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Technical Specifications

• Processor:Processor model, clock frequency
• Memory:Program memory, data memory capacity
• Input/Output:Number of analog input/output points, number of digital input/output points, number of special function input/output points
• Communication:Supported communication interfaces (such as Ethernet, Modbus, etc.)
• Power Supply:Operating voltage, power consumption
• Environmental Conditions:Operating temperature range, humidity range

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