Powerful digital timer relay switch for High-Risk Applications
Reliable digital timer relay switch Styles for Commercial and Industrial Applications
CHINA – ?¡ãAny Electronics?¡À proudly presents their entire range of digital timer relay switch . They offer a complete set of digital timer relay switch solutions along with other interrelated items. These units are seen in different applications such as industrial applications, industrial control circuits together with OEM Panels. These devices come with outstanding precision and repeatability. The regular digital timer relay switch that happen to be created in recent times require incredibly small panel space.
digital battery timer relay switch digital universal timer relay switch kit digital timer relay switch circuit
-DIN(48X48mm) Digital timer
-0.01s-99h99m time range with quartic timer set value individual,
-output for A, C period. B, D not output
-One shot or cycle time mode
-NPN input onlyv -Tact switch for up or down set value, easily operate
-Key lock function, prevent mistake operation
-Power: AC 110-240V
-Input singal: Start, Stop, Pause
-Output: 2 Relay
1pcsx Digital Timer B3S-2R-220
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Karan R asked Is there any Plc system which can automatic switch over between two systems in every 7 days??
Need to make an plc system which can switchover between two systems once every week.... - the both systems are having similar functions. - the system is not very complicated its an simple gas booster.
And got the following answer:
It depends on the systems and the PLC of course. Basically you want to run two separate programs based on the time. I would be inclined to have an external event (on a digital input port) from a timer or 7 day clock and also from a test switch. This would make development and testing easier. Then you could have either separate programs if that is allowed or separate statements that are executed or not by the state of that input pin. This depends to some extent on how complex the two systems are, and how much they have in common. It might be possible to have the same sort of thing based on a timer internally. The best way to find out is read up on what is there, and try a simple program to see if it works. It could be an "if... then..." structure, or a case or switch structure, based on the external event or the timer. Note that some PLCs are programmable in basic or C other than ladder logic, which might turn out to be easier (it seems to me anyway, being more familiar with these). I expect that the internal timer running for 7 days might be an issue, or lack of program space or memory if the program is too big. Another problem could be the number of i/o ports if there are separate sensors and controls for each system, as these probably have to be kept separate. It might be possible to switch the i/o over using relays though, reusing the same inputs with different devices. Also remember the timer or external event can be used to set a variable that can be used globally in the program.
The digital timer relay switch perform very properly with distinct applications that are certain to energy distribution and protection. The relays come with wide adjustment ranges with a scale that may be easy to study either in three or 4 digits in line with the model. These digital timer relay switch assistance in increasing the flexibility from the applications, cut down the all round energy and maintenance expenses. You can find relays that are utilized for common purposes which come in reputable designs with rapid replacement solutions. And you can find models that happen to be applied for industrial applications and heavier duty applications that function on significant loads. These goods are produced to meet the lifetime industrial manage wants in the applications.
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