I/O control method: refresh mode or direct mode.
User program storage capacity: 30K step.
I/O points: 1024 points.
Memory capacity: bytes 192K.
ANSCPU has been updated to ANSHCPU, and it has the following advantages.
16 bit dedicated microprocessor.
Large capacity battery backup memory RAM.
Extended I/O control capability AL2 Series Manual AL2 Series COMMUNICATION MANUAL.
Dedicated CC-Link instruction AL2 Series
Capacity for extended comment storage.
PLC programming is a digital computing operation of the electronic system,
Designed for applications in industrial environments.
It uses programmable memory,
An instruction used to perform logical operations, sequence control, timing, counting and arithmetic operations in its internal storage,
And through the digital, analog input and output, control of various types of machinery or production process AL2 Series Manual AL2 Series COMMUNICATION MANUAL.
Programmable controller and related equipment,
Should be easy to make the industrial control system to form a whole, easy to expand the principle design of its functions. QCPU (Q mode) bus connection.
2 joint.
Applicable models: A985 (-V) /975/970/960GOT. 7 slots.
Power supply unit.
Q4AR power supply duplex AL2 Series Manual AL2 Series COMMUNICATION MANUAL.
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.
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 hhysteresis phenomena, i AL2 Series Manual AL2 Series COMMUNICATION 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 tto do the compiler to compile the process of interpretation AL2 Series Manual AL2 Series COMMUNICATION MANUAL.
Read only memory. Manufacturers use, content can not be changed, power does not disappear.