Recent content by AboElKasem

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    Profibus Cable Socket Switch Status

    There is only one cable from PLC Module to the PC, so will the switch position will be ON in both terminals or for the PC terminal only?
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    Profibus Cable Socket Switch Status

    We have s7-300 PLC used as a control system for a Loading unit. Data collected are transferred to an industrial PC via profibus cable from the PLC comm card to the PC. What will be the status of the switch located at cable sockets in both ends (PLC card End and PC End)?
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    Why Need 250 ohms resistor in HART protocol

    in HART ,it is not about converting 4-20 ma to 1-5 vdc. in HART we can put any resistance in the range of 250-500 ohm to overcome the effect of capacitor located at power supply.
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    RTD Reading Fluctuation

    it could be from vibration, transmitter electronic problem, cable earthing problem or the reciving channel at PLC/Controller problem.
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    A Question About Intrinsically Safe Instrument

    As we know for any intrinsically safe instrument we should install a safety barrier to limit the energy fed to the instrument. My question is: what happens if we install an intrinsically safe instrument without installing a safety barrier before it? Will it operate/run well? What will...
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