MES interface module.
Need MX MESInterface software and CF card.
Easily connect production equipment and information system.
Through the excellent database sharing function, greatly reduce the cost of information.
By direct connection, the connection process of the enterprise system database (such as MES) is simplified Q12DCCPU-V Structured Text Manual Q12DCCPU-V Programming Manual.
Module configuration is simple, without any programming Q12DCCPU-V
The data can be monitored in the module side, when a user defined trigger condition occurs,
Will be read in the form of SQL text and send the specified data to the MES.
The network load can be reduced compared with the previous scheme which is based on the gateway PC to obtain / monitor the data.
Receive information from the MES, perform pre stored SQL tasks Q12DCCPU-V Structured Text Manual Q12DCCPU-V Programming Manual.
In addition, the production instructions from the MES are also received,
The production information can be downloaded from the database, and the modification of the formula information can be conveniently carried out. 5 slots.
Requires 1 power modules.
Used to install the old section of the large A series PLC module.
Switch volume control is designed to,
According to the current input combination of the switch quantity and the history of the input sequence,
So that PLC generates the corresponding switching output,
In order to make the system work in a certain order Q12DCCPU-V Structured Text Manual Q12DCCPU-V Programming Manual.
So, sometimes also known as the order control.
And sequential control is divided into manual, semi-automatic or automatic.
And the control principle is decentralized, centralized and hybrid control three.
Each scanning process. Focus on the input signal sampling. Focus on the output signal to refresh.
Input refresh process. When the input port is closed,
Program in the implementation phase, the input end of a new state, the new state can not be read.
Only when the program is scanned, the new state is read.
A scan cycle is divided into the input sample, the program execution, the output refresh.
The contents of the component image register are changed with the change of the execution of the program.
The length of the scan cycle is determined by the three.
CPU the speed of executing instructions.
Time of instruction.
Instruction count.
Due to the adoption of centralized sampling.
Centralized output mode.
There exist input / output hysteresis pheenomena, i Q12DCCPU-V Structured Text Manual Q12DCCPU-V Programming Manual. e., the input / output response delay.
System program memory for storing system program,
Including management procedures, monitoring procedures, as well as the user program to do the compiler to compile the process of interpretation Q12DCCPU-V Structured Text Manual Q12DCCPU-V Programming Manual.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.