Input points: 32 points.
Input voltage: DC12V/DC24V/AC12V/AC24V.
Current: 4mA (DC12V/AC12V), 8.5mA (DC24V/DC24V).
Response time: 30ms (DC12/24V) /35ms (AC12/24V).
16 points / a common end.
50 point terminal station.
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 A1SJ71QC24N
Read only memory. Manufacturers use, content can not be changed, power does not disappear.
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.
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.
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 phenomena, i.e., the input / output response delay. Analog input channel number: 4CH.
Available thermocouple: -.
Available temperature resistance: PT100, JPt100.
Sampling period 4CH: 250ms/500ms.
Control output cycle: 0.5s ~ 100.0s.
Input impedance: 1M.
Input filter (0: input filter OFF): 0 ~ 100s.
Sensor compensation value setting: the full range of the input range of the negative terminal to the full range of the input range.
Sensor input when the action: according to the scale of the processing.
Temperature control mode: ON/OFF PID pulse or 2 position control
Heater disconnection detection specification: there.
External wiring connection mode: 18 point screw terminal.
IQ-R MELSEC series of temperature control module to achieve a high stability and response to the temperature control.
Divided into Thermocouple Input, temperature resistance input two types of input,
These two kinds of input types are distinguished by the function of the detection of the broken line with / without heater.
Module binding function.
Combined with the use of up to 64 sets of temperature control module for temperature control. Can be combined with the function of the following two points.
Heating function between modules.
Peak current suppression function between modules.
By cooperating with the time of arrival of a number of loops, the average temperature is controlled.
Can realize the uniform temperature control, avoid partial burning control object,
Part of the phenomenon of thermal expansion. Can be divided into 16 groups, with its heating up to the time,
Reduce the overall system in heating up the waste of energy.
Peak current suppression function between modules
By the time staggered output transistor, suppressing peak current.
The power supply capacity of the equipment can be reduced by setting a larger channel and a smaller channel of the heater in the same set.
Can be divided into 5 groups.
A1SJ71QC24N Operation manual/Instructions/Model selection sample download link: /searchDownload.html?Search=A1SJ71QC24N&select=5