general-purpose registers plc cpu module

plc cpu modules register components, including general-purpose registers, special registers and control registers. 

General-purpose registers can be programmable logic controller plc‍ into two types of fixed-point and floating-point numbers, which are used to save the instruction operand registers and operation results. 

General-purpose input module plc‍ are an important part of the central processor, most instructions have access to the general-purpose registers. General register determines the width of the internal data path width of the machine, the number of ports can often affect the operation of the internal parallelism.‍

cpu modules plc control unit

cpu modules plc‍ Control means, is mainly responsible for decoding the instruction, and sends control signals to each instruction to complete execution of each operation. 

Its structure, there are two: one is at the core of the profibus module plc‍ micro stored program control mode; one is hard-wired logic-based control structure. 

Micro microcode store holding, for each code corresponding to a basic micro-micro-operations, also known as the microinstruction; each instruction is composed of a different plc sequence of events module‍ of microcode, the microcode sequence constituting the microprogram. After the central processor decodes the instruction that certain timing control signals, according to the order given sequence to beat the micro cycle performed by the microcode identified a number of micro-operations, to complete the execution of an instruction.‍

plc cpu module Product Description

plc cpu modules comes standard with two RS485 interfaces, optional Ethernet port 

High-speed computing and programmable logic controller‍ processing capabilities 

Larger user memory space, 

PID control to achieve more channels; 

Magnetic storage technology digital input plc‍ ultra-long retentive, 

Without battery support, data can be saved for up to 10 years; 

Iterative AES encryption algorithm to protect users of intellectual property rights; 

S7-200 is compatible with the support of STEP7-MicroWIN Programming.‍

AC input of the PLC CPU

Due to the increase of the AC input current limiting circuit, isolation and rectification of the three links, therefore, the delay time of the input signal than the DC input circuit is longer, it is plc programmable controller‍ shortcomings. However, due to the high voltage input terminal, so the reliability of the input signal is higher than the DC input circuit. General, plc cpu AC input methods for oil mist, dust and other high-speed counter modules‍ environments, the response of the less demanding situations, while the DC input mode is better for the environment, electromagnetic interference is not punished, for situations that require high responsiveness .

PLC CPU communication No.

Classified by the type of external power supply circuit for the DC input DC input a form of circuit (shown only one input circuit). When an external line switch is closed, the internal PLC communication modules plc‍ LED lights, phototransistor saturated conduction, then send the on plc sequence of events module‍ processor so that the CPU that the road signal input; switch off when the outside light the light-emitting diode coupled off, phototransistor deadline, CPU that the road no signal.

plc cpu modules communications functions

S5-compatible communication for communication between stainless steel 304ba and SIMATIC S5, SIMATIC S7-300/-400 and computer / PC. Necessary function calls are part of NCM S7 for Industrial Ethernet, must be integrated into the user program. 

plc cpu modules communications functions 

For the S7-300 (only servers), S7-400 (server and client), HMI stainless steel 301 and PC (with SOFTNET S7 or S7-1613) Communication Communication via CP 343-1, no other configuration. CPU with the programming device can be remotely programmed via Industrial Ethernet or WAN.

plc cpu modules designed for industrial

plc cpu modules via 100Mbit / s Ethernet, plc controller suppliers can be directly integrated into complex systems 

Remote programming via the WAN TCP / IP, can also use the telephone line connection (eg ISDN) 

Free high-speed counter plc connection can be adapted to any number of stations 

A plc cpu modules can be applied to a variety of applications: PG / PC, HMI systems, S5/S7.