Input and output points: 1024 points.
Input / output data points: 1024 points.
Program capacity: 14K.
Basic command processing speed (LD command) s:0.20.
Integral type: the PLC components are installed together or a few pieces of printed circuit board,
And together with the power supply installed in the casing to form a single overall called the host or the basic unit, small, ultra small PLC using this structure A172SENC
Modular: PLC is the basic components of a separate module.
Medium and large PLC used this way. Easy maintenance.
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.
User program storage capacity: it is a measure of how much the user application can store the number of indicators.
Usually in words or K words as units. 16 bit binary number is a word,
Every 1024 words are 1K words. PLC to store instructions and data in words.
General logical operation instructions each account for 1 words. Timer / counter,
Shift instruction accounted for 2 words. Data operation instructions for 2~4. RS232 connector conversion cable (round connector, 9 pin D-sub connector).
Easy connection through the hub CPU.
By using an Ethernet hub, programming tools and multiple CPU can be connected simultaneously.
Through the programming tool can be searched and displayed in the list has been connected to the CPU.
Therefore, even if the IP CPU address is unknown, just choose from this list, you can easily connect.
Seamless communication without network level constraints.
With the latest high-speed, large capacity IE CC-Link controller network and IE CC-Link field network,
Corresponding to the increasing amount of information.
Together with previous MELSECNET/H, Ethernet and CC-Link,
These networks can be across the network type or level of differences, to achieve seamless communication.
Programmable logic controller on the network through the programming tool of the Ethernet connection,
Monitoring and programming.
A172SENC Operation manual/Instructions/Model selection sample download link: /searchDownload.html?Search=A172SENC&select=5