on-demand_registers
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on-demand_registers [2018/11/26 14:26] – emozolyak | on-demand_registers [2021/08/06 15:02] – emozolyak | ||
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====== Read on demand registers ====== | ====== Read on demand registers ====== | ||
- | ---- | + | Most of remote devices, connected to WebHMI always have some settings or setup data which do not have to be read in every WebHMI scan. They are actually accessed by operator only during commissioning or installation. |
- | Each remote device, connected to WebHMI always has some settings or setup data which does not have to be read in each WebHMI scan. They are actually accessed by operator | + | For example temperature regulator may have only 2-3 process-related registers (current temperature, |
- | E.g. temperature requlator may have only 2-3 process related data ( current temperature, setpoint, control output value), but __tens | + | So when you add many such controllers with all registers to the WebHMI project, it will communicate 90% of time in vain, and only 5-10% to read important |
- | So when you add many such controllers with all registers to the WebHMI project, it will communicate 90% of time in vain, and only 10% to read important data. | + | To avoid this situation, there is a special attribute for the registers which marks them as "Read on-demand" |
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- | To avoid this situation, there is a special attribute for the registers which marks them as "Read on-demand" | + | |
Tip: Group all read-on demand registers in one or two ' | Tip: Group all read-on demand registers in one or two ' | ||
- | viewed via Analytics | + | viewed via Analytics |
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+ | To set any register into this mode select "On demand" | ||
+ | To activate reading such register either click on (R) icon in register list or go to **Analytics -> Raw values** page, select needed connection and registers category and click "Read on-demand registers" | ||
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+ | Once activated this register will be read for 60 seconds in every scan. And then it will be deactivated again. | ||
on-demand_registers.txt · Last modified: 2022/01/15 08:12 by 127.0.0.1