FOXBORO 0399085B 0303440C+0303458A

Description

FOXBORO 0399085B 0303440C+0303458A

Description:

Imported with original packaging, competitive price, large quantity of goods in stock.

Commitment I: 1. Absolute guarantee of new and original import

Commitment 2: 2. Absolute guarantee of safe and punctual delivery

Commitment III: 3. Absolute guarantee of after-sales service quality

Process 1: 1. The customer confirms the model of the product to be purchased

Process 2: 2. We will query the price and delivery date according to the model of the inquiry sheet and draw up a detailed formal quotation

Process 3: 3. The customer orders the product after receiving the quotation and confirming that the model is correct

Process 4: 4. The person in charge of the quotation draws up a sales contract according to the model and quantity provided by the customer

Process 5: 5. After receiving the agreement of contract review, the customer will stamp and return it and remit it to the company’s account bank according to the contract sales amount

Process 6: 6. After the financial department of our company finds the payment, the salesperson arranges the delivery and notifies the customer to track the waybill

Working process: mainly divided into internal processing, communication operation, input processing, program execution and output processing.

Internal processing stage:

At this stage, the PLC checks whether the hardware of the CPU module is normal, resets the monitoring timer, and completes some other internal work.

Communication service stage

At this stage, the PLC communicates with some intelligent modules, responds to the commands typed by the programmer, updates the display contents of the programmer, etc. When the PLC is in the stop state, only content processing and communication operations are carried out.

Input processing

Input processing is also called input sampling. At this stage, the on-off status of all input terminals is read in sequence, and the read information is stored in the corresponding image register in the memory. Here, the input image register is refreshed, and then the program enters the execution phase.

program execution

According to the scanning principle of PLC ladder program, scan the program sentence by sentence in the sequence of left to right, top to bottom. However, in case of program jump instructions, the jump address of the program is determined according to whether the jump conditions are met. If the user program involves the input and output status, the PLC reads the corresponding input terminal status acquired in the previous stage from the input image register, and reads the current status of the corresponding image register from the output image register. Carry out logical operation according to the user program, and store the operation result in the relevant device register.