IS200VRTDH1DAB Transistor Isolation Relay

IS200VRTDH1DAB It is not necessary to analyse the internal circuitry of the CPU in detail, but there should still be sufficient understanding of the working mechanism of each part.The controller of the CPU controls the work of the CPU, which reads the instructions, interprets them and executes them. However, the working rhythm is controlled by oscillating signals. Operators are used to perform digital or logical operations and work under the command of the controller. Registers are involved in the operations and store the intermediate results of the operations, which also work under the command of the controller.

The IS200VRTDH1DAB interfaces with the electrical circuits through the input and output section (I/O).The I/O module integrates the PLC’s I/O circuitry with input stubs that reflect the input signal state and output points that reflect the output latch state. The input module converts electrical signals into digital signals into the PLC system, and the output module is the opposite.I/O is divided into switching inputs (DI), switching outputs (DO), analogue inputs (AI), analogue outputs (AO) and other modules.

IS200VRTDH1DAB Switching quantities are signals that have only two states, on and off (or 1 and 0), and analogue quantities are continuously changing quantities. Commonly used I/Os are classified as follows:
Switching quantity: by voltage level, there are 220VAC, 110VAC, 24VDC, and by isolation method, there are relay isolation and transistor isolation.
Analogue: by signal type, there are current type (4-20mA,0-20mA), voltage type (0-10V,0-5V,-10-10V), etc., and by accuracy, there are 12bit, 14bit, 16bit, etc.
In addition to the above general-purpose IO, there are also special IO modules, such as RTD, thermocouple, pulse and other modules.
According to the number of I/O points to determine the module specifications and the number of I/O modules can be more or less, but the maximum number of its ability to manage the basic configuration of the CPU can be limited by the maximum number of slots in the baseboard or rack.