PLC analog program

The transmitter will transmit the measured analog to analog input modules, analog input modules the analog to digital conversion is stored in the specified data memory (look at the analog modules Manual, which certainly describes), then the resulting digital value established with you compare, greater than or equal to the set value of the output.

As set plc analog output module, if only to read the values read from the dedicated data memory can be, there is nothing to set up.
Channel selection, you have a few analog signal input on the use of several channels, all the way, then casually.
Numerical readout is displayed on the small plc is decima

Consisting of CPU

plc cpu internal structure can be divided into several main parts unit, arithmetic unit, a storage unit and clock control.

Calculator is a computer data processing center, which is mainly composed of an arithmetic logic unit (ALU: Arithmetic and Logic Unit), registers and status registers. ALU mainly to complete the binary information of fixed-point arithmetic operations, logic operations, and various shift operations. General-purpose register is used to hold operands and intermediate results participate in operation. Status register have different requirements in different machines, the program, the state bit is typically used as a branch instruction determination condition.

plc controllers is the control center of the computer, which determines the automated computer processes running. It is not only to ensure the correct implementation of the program, but also to be able to deal with unusual events. The controller generally includes an instruction control logic, timing control logic, bus control logic, interrupt control logic sections.

In the PLC, CPU module what role?

plc cpu module is the control center of the PLC. It functions in accordance with the procedures given PLC system receives and stores from the programmer type of user programs and data; check the power supply, memory, I / O and watchdog timer status, and can diagnose the user program syntax error. I / O module is the interface between PLC and site control interface input channels. Power module plays an important role in the overall system. If you do not have a good, reliable power system is not working properly, so the manufacturers of the PLC power supply design and manufacturing very seriously. Programming plays a role in the design and commissioning of the plc. Now a lot of free online plc programmable software available.

In the PLC, CPU module what role?

plc cpu modules is the control center of the PLC. It functions in accordance with the procedures given plc modules system receives and stores from the programmer type of user programs and data; check the power supply, memory, I / O and watchdog timer status, and can diagnose the user program syntax error. I / O module is the interface between PLC and site control interface input channels. Power module plays an important role in the overall system. If you do not have a good, reliable power system is not working properly, so the manufacturers of the PLC power supply design and manufacturing very seriously. Programming plays a role in the design and commissioning of the plc. Now a lot of free online plc programming software available.

CPU module

Eachcpu module on the host are integrated 24V DC power supply, can be directly used to connect sensors and actuators. Use EEPROM memory to store programs and configuration information. User data can be super-capacitor storage host for several days, the optional battery module enables data storage time was extended to 200 days. You can use ordinary input terminals capture faster than the plc cpu scan cycle pulse signal, use interrupt inputs, allow at breakneck speed on the rising edge of the signal response. Speed of 30 kHz high-speed counter may be programmed, and having a reset input terminal, a plurality of separate inputs, can be simultaneously used and down counting, can be connected to a corresponding number of degrees of phase difference A 90 / B-phase incremental encoder . 2-way up to 20kHz frequency pulse output can be used to drive a stepper motor and servo motors to achieve accurate positioning tasks. You can use the potentiometer on the module to change its corresponding value in the special register, you can instantly change the program to run some of the parameters, such as setpoint timer / counter, the amount of process control parameters. Real-time clock can be used to fill the time stamp information, recording time, or on a machine running time process control.

PLC CPU Module

We are one of leading programmable logic controller (plc programmable controller) distributors from China.  PLC CPU Modules have different grades against different functions. & processing capacities to meet applications of various industrial control fields. PLC CPU Modules provide "RUN/STOP" switch to switch the CPU operation mode. It is integrated with switching value I/O and photoelectric isolation. It has RS232/RS485 communication interface for user to download and debug program, communicate with other devices. It has extension interface for high-speed data transmission between cpu modules and PLC extension modules. It is provided with power-off protection, high-speed I/O processing, analog potentiometer, password protection and real-time clock. With Watchdog function, it can be automatically reset and restarted under break-down.

The role of the CPU

CPU module is the control center of the cpu module module. It functions in accordance with the procedures given PLC system receives and stores from the programmer type of user programs and data; check the power supply, memory, I / O and watchdog timer status, and can diagnose the user program syntax error. I / O module is the interface between plc modules and site control interface input channels. Power module plays an important role in the overall system. If you do not have a good, reliable power system is not working properly, so the manufacturers of the PLC power supply design and manufacturing very seriously. Programming plays a role in the design and commissioning of the plc. Now a lot of free online plc programming software available.

The role of the CPU

CPU module is the control center of the cpu module plc. It functions in accordance with the procedures given PLC system receives and stores from the programmer type of user programs and data; check the power supply, memory, I / O and watchdog timer status, and can diagnose the user program syntax error. I / O module is the interface between plc IO module and site control interface input channels. Power module plays an important role in the overall system. If you do not have a good, reliable power system is not working properly, so the manufacturers of the PLC power supply design and manufacturing very seriously. Programming plays a role in the design and commissioning of the plc. Now a lot of free online plc programming software available.