The main unit of the AS-i system
The response time of PLC is the interval between the time of the change of the external output signal of the PLC and the time of the change of the external output signal which is controlled by it,
Lag time, this is the time constant of the input circuit,
The time constant of the output circuit, the arrangement of the user statement and the use of the instruction,
The cycle scan mode of PLC and the way of PLC to refresh the I/O and so on A2ACPUP21-S4 AD57 control Instructions Manual A2ACPUP21-S4 Programming Manual A2ACPUP21-S4
This phenomenon is called the I/O delay time effect.
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.
And then combine the data and the program with CPU A2ACPUP21-S4 AD57 control Instructions Manual A2ACPUP21-S4 Programming Manual.
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. Series Name: A953GOT.
Size: 6 inches.
Resolution: 320 * 240.
Display equipment: high brightness TFT color display.
Display color: 256 color.
Power supply: DC24V.
The built-in RS-232 communication interface.
Memory card: 3M.
Design any machine interface, generally have to consider the system response time, user assistance mechanism, error information processing and command mode four aspects A2ACPUP21-S4 AD57 control Instructions Manual A2ACPUP21-S4 Programming Manual.
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 timme, it should be as far as possible to provide some suggestions on the recovery of errors A2ACPUP21-S4 AD57 control Instructions Manual A2ACPUP21-S4 Programming Manual.
In addition, when the error message is displayed, the effect is better if it iss supplemented by the auditory (Bell) and visual (special color) stimulus;
Command mode is the best menu and keyboard commands, for the user to choose A2ACPUP21-S4 AD57 control Instructions Manual A2ACPUP21-S4 Programming Manual.