Data communication line module (optical cable) Master / local station for A3VTS multiplex system
MITSUBISHI PLC detection, fault diagnosis and display and other procedures.
These procedures are relatively independent, generally in the basic completion of the program design and then add.
MITSUBISHI PLC protection and chain procedures A970GOT-SBA-EU Manual.
Protection and chain is an indispensable part of the program, must be carefully considered A970GOT-SBA-EU
It can avoid the control logic confusion caused by illegal operations. Series Name: A953GOT.
Size: 6 inches.
Resolution: 320 * 240.
Display device: STN monochrome display.
Display color: monochrome (white and black).
Power supply: DC24V.
The built-in RS-232 communication interface A970GOT-SBA-EU Manual.
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 A970GOT-SBA-EU Manual MITSUBISHI A970GOT-SBA-EU User's Manual MITSUBISHI A970GOT-SBA-EU User's Manual.
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 voltage range: AC100 ~ 120V MITSUBISHI A970GOT-SBA-EU User's Manual.
Output voltage: DC24V.
Output current: 0.6A.
Relay output interface circuit of PLC
Working process: when the internal circuit output digital signal 1,
There is a current flowing through, the relay coil has a current, and then the normally open contact is closed,
Provide load current and voltage.
When the internal circuit outputs a digital signal 0, there is no current flowing through it,
The relay coil does not have a current, and the normally open contact is broken off,
A current or voltage that is disconnected from the load.
It is through the output interface circuit to the internal digital circuit into a signal to make the load action or not action.
I/O points is an important indicator of PLC.
Reasonable selection of I/O points can not only satisfy the control requirements of the system,
And the total investment of the system is the lowest.
The input and output points and types of PLC should be determined accordingg to the analog quantity and switch quantity of the controlled object,
Generally an input / output element to take up an input / output point A970GOT-SBA-EU Hardware.
Taking into account the future adjustment and expansion,
In general should be estimaated on the total number of points plus the amount of spare 20%~30% A970GOT-SBA-EU Manual.
The following describes the centralized control system I/O points of the estimate.