Optional features of memory card (Q/QnA/A/FX compatible).
8MB extended memory.
Applicable models: A985 (-V) /975/970/A960GOT (-B) /A956WGOT. Series Name: A953GOT.
Size: 6 inches.
Resolution: 320 * 240.
Display equipment: high brightness TFT color display.
Display color: 256 color.
Power supply: DC24V A1SD75P1-S3 datasheet PDF catalog A1SD75P1-S3 PDF datasheet.
The built-in RS-232 communication interface A1SD75P1-S3
Memory card: 1M.
Design any machine interface, generally have to consider the system response time, user assistance mechanism, error information processing and command mode four aspects.
System response time is too long to be the most users in the interactive system,
In addition to the absolute length of the response time, the user is also very concerned about the difference in response to different commands in response time,
If too wide users will be difficult to accept; user assistance mechanism should be integrated,
Avoid overlay systems that cause users to turn to a guide and have to browse a large number of irrelevant information;
Error and warning information must be selected in terms of user''s clarity and meaning,
At the same time, it should be as far as possible to provide some suggestions on the recovery of errors A1SD75P1-S3 datasheet PDF catalog A1SD75P1-S3 PDF datasheet A1SD75P1-S3 datasheet PDF catalog A1SD75P1-S3 PDF datasheet.
In addition, when the error message is displayed, the effect is better if it is supplemented by the auditory (Bell) and visual (special color) stimulus;
Command mode is the best menu and keyboard commands, for the user to choose. Input points: 32 points.
Input voltage: AC100 ~ 120V.
Current: 6mA.
Response time: 30ms.
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.
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 thee change of the execution of the program A1SD75P1-S3 datasheet PDF catalog A1SD75P1-S3 PDF datasheet.
The length of the scan cycle is determined by the three.
CPU the speed of executing instructions.
Time of instruction.
Instruction count.
Due to thhe adoption of centralized sampling A1SD75P1-S3 datasheet PDF catalog A1SD75P1-S3 PDF datasheet.
Centralized output mode.
There exist input / output hysteresis phenomena, i.e., the input / output response delay.