8 slots.
No need to install power.
For QnA/A series.
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 A951GOT-QSBD-M3-B SW4D5C-GOTR-PACKE compatible Extended/Option Functions Manual Manual A951GOT-QSBD-M3-B Operating Manual A951GOT-QSBD-M3-B
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 A951GOT-QSBD-M3-B SW4D5C-GOTR-PACKE compatible Extended/Option Functions Manual Manual A951GOT-QSBD-M3-B Operating Manual.
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 A951GOT-QSBD-M3-B SW4D5C-GOTR-PACKE compatible Extended/Option Functions Manual Manual A951GOT-QSBD-M3-B Operating Manual.
Time of instruction.
Instruction count.
Due to the adoption of centralized sampling.
Centralized output mode.
There exist input / output hysteresis phenomena, i.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.
Read only memory. Manufacturers use, content can not be changed, power does not disappear. Output type: relay.
Output points: 8 points.
Load voltage: AC240/DC24.
Load current: 2A.
Connection mode: terminal row.
Common public end points: 1.
Structured text language is a programming language that describes a program with a structured description of the text.
It is a programming language similar to a high level language. In large and medium
Structured text is often used to describe the relationship between the various variables in the control system based on the PLC system.
Mainly used for other programming languages more difficult to achieve the user program.
The structured text programming language uses the computer description method to describe the various kinds of relations between the various variables in the system,
Complete the required function or operation.
Most PLC manufacturers use structured text programming language similar to BASIC language, PASCAL language or C language and other advanced languages,
But in order to be convenient, the expression methods of the statement and the types of statements are simplified.
Structured text prrogramming language features: the use of high-level language programming, you can complete the complex control operations,
Needd to have a certain level of computer knowledge and programming skills,
Higher requirements for engineering designers A951GOT-QSBD-M3-B SW4D5C-GOTR-PACKE compatible Extended/Option Functions Manual Manual A951GOT-QSBD-M3-B Operating Manual A951GOT-QSBD-M3-B SW4D5C-GOTR-PACKE compatible Extended/Option Functions Manual Manual A951GOT-QSBD-M3-B Operating Manual. Poor visibility and operability.