Program memory capacity: 8k.
Input / output points: maximum 256 points.
A scan cycle of PLC must pass through three stages: input sampling, program execution and output refresh.
PLC in the input sampling phase: first of all, in order to scan the sequence of all existing input latches in the input terminal of the state or input data read,
And write it into the corresponding input status register,
Refresh the input, then close the input port, enter the program execution stage A1SJ71UC24-R4-S2  Manual A1SJ71UC24-R4-S2  2 channels.
Input: DC-10 ~ 10V, DC4 ~ 20mA.
Output (resolution): -2000 ~ 2000, -1000 ~ 1000.
Transform speed: 15ms/2 channel.
20 point terminal station.
Input status and input information input from the input interface,
CPU will be stored in the working data memory or in the input image register A1SJ71UC24-R4-S2  Manual.
And then combine the data and the program with CPU.
The result is stored in the output image register or the working data memory,
And then output to the output interface, control the external drive.
PLC selection with the development of PLC technology, more and more types of PLC products,
Function is becoming more and more perfect, and its application is more and more extensive A1SJ71UC24-R4-S2  Manual.
Different series of different models of PLC has different performance, applicable occasions also have different emphasis,
Price also has a greater difference. Therefore PLC selection,
Under the premise of meeting the control requirements,
Should consider the best performance to price ratio, a reasonable choice of PLC MITSUBISHI A1SJ71UC24-R4-S2  User's Manual.
The working process of the input interface circuit: when the switch is closed, the diode light,
The transistor is then guided to the internal circuit and input signal under the irradiation of the light MITSUBISHI A1SJ71UC24-R4-S2  User's Manual.
When the switch is off, the diode does not emit light, and the transistor is not on the way. Internal circuit input signal MITSUBISHI A1SJ71UC24-R4-S2  User's Manual.
It is through the input interface circuit to the external switch signal into PLC internal can accept the digital signal.
MITSUBISHII PLC is the main product in the production of MITSUBISHI motor in Dalian A1SJ71UC24-R4-S2  .
It uses a kind of programmable memory for its internal storage procedures,
Execute logic operation, sequence control, timing, counting and arithhmetic operations, user oriented instruction,
And through digital or analog input / output control of various types of machinery or production process A1SJ71UC24-R4-S2  Manual.