7. What are tri-state devices and why they are
essential in a bus oriented system
Answer / jobby c johnson
let me explain with a device called tri state buffer. it
has threee terminals. inline, enable line, outline.
its working is when enanble line is active output line
follows input line. but if it is not activated then output
line is free.
now how it helps in bus oriented system. consider two
buffers working on inverted logic . two buffers are
recieving differant inputs and the output of two buffers
are connected to same bus. with the help of enabling and
disabling enable line of two buffers we can selectivly
allow one of the input int the bus
Is This Answer Correct ? | 1 Yes | 0 No |
Why integral control mode call Reset controller?
what do you know about Foundation Fieldbus?
what do u mean by 2/3 soleniod valves?
define SIMULATION a and what is the need of it
Shall we get the reading on level transmitter only by termination,without commissioning?
What is pipe schedule? What are all effects its having in the valve? how do we take care of pipe sch in case if the customer dint specify in the data sheet. What we need assume and in what basis?
how u measure dp in dp tx? how u calibrate a dp tx?
i want to make project on process control using plc.please give me idea about this.
LADDER LOGIC Can any body state Logic on following condition Instructions to use 1-XIC 2-XIO 3-Output ONLY Program Push 1st button On - 1st lamp should On Then Push 1st button Off - 1st Lamp Should remain on Push 2nd button On - 1st lamp should Off and 2nd lamp should On Then Push 2nd button Off - 2nd Lamp Should remain on.
what is full form of NAK?
what is the significance of hook up
without color coding, without nameplate, without multimeter how can you find the type of thermocouple???