Product details

Brand: Triconex

Model: 2481

product description :

2481 is a  Multi-Function Processor Module

First, the processor 3 modules

1. Control unit

The control unit is the command and control center of the whole CPU, consisting of Instruction Register IR(Instruction Register), instruction Decoder ID(Instruction Decoder) and Operation Controller OC(Operation Controller), etc. It is very important to coordinate the whole computer to work in order. According to the user's pre-programmed program, it takes out each instruction from the memory in turn, puts it in the instruction register IR, determines what operation should be carried out through instruction decoding (analysis), and then sends a microoperation control signal to the corresponding component by operating the controller OC, according to the determined timing. The operation controller OC mainly includes the control logic of beat pulse generator, control matrix, clock pulse generator, reset circuit and power off circuit.

2. Arithmetic unit

It is the core of the arithmetic machine. You can perform arithmetic operations (including basic operations such as addition and subtraction multipliers and their additional operations) and logical operations (including shifts, logic tests, or comparisons between two values). Relative to the control unit, the arithmetic device accepts the command of the control unit and acts, that is, all the operations carried out by the arithmetic unit are commanded by the control signal issued by the control unit, so it is the executive part.

3. Storage unit

Including CPU on-chip cache and register group, is a temporary storage of data in the CPU, which holds the data waiting for processing, or has been processed data, the CPU to access the register time is shorter than the time to access memory. The use of registers can reduce the number of times the CPU accesses the memory, thus improving the working speed of the CPU. However, due to the limited chip area and integration degree, the capacity of the register group cannot be very large. The register group can be divided into special register and general register. The function of the special register is fixed, respectively storing the corresponding data. General purpose registers are versatile and can be specified by the programmer, and the number of general purpose registers varies from microprocessor to microprocessor. This is the key point that we will introduce later, and I will mention it here first.

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