Answer Posted / abu maryam
scanning time:
In general: scanning time: it is the time taken to read all inputs then execute the program and apply on outputs.
In PLC: it is only 1 processor check the previous procedures so its scan time depend on the quantity of data and program.
In DCS: There are several processors each processor has its inputs and outputs and its private program so each processor in DCS has its private scan time applied on each loop.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
1)How many tpes of vibration probe and how many tpyes of vibration. 2)how we can calibrate a vibration probe with tk3 3)what is RMS value in vibration measuring application and how we calculate it.
Explain types of valves?
whats the abbreviation of IOP? is it instrument of power or input open problem?
How to Calibrate Level Troll in field
Q1]IF THE RANGE FOR FLOW IS -35 TO 125 WHAT WILL BE THE SPAN FOR ABSOLUTE AND FOR NORMAL? Q2]HOW TO CALIBRATE CAPILLARY TYPE LT? Q3]HOW MANY ERROR CALCULATIONS ARE THERE USED IN PROCESS INDUSTRIES? Q4]HOW TO CALIBRATE TEMPERATURE TRANSMITTER? Q5] HOW TO CALIBRATE LEVEL TROLL AND HOW TO CONNECT? Q6]PLEASE TELL ME THE BASIC FOR INSTRUMENTATION WHICH IS APPLIED FOR CALIBRATION AND FOR ALL? PLEASE MAIL THE ANSWER TO honest_yes@yahoo.in
whatis range of marcury filled tempereture gague
How to Calibrate Level Switch in field
Can Any body tell me how to check Modbus Settings in ER300N L&T trivector meter?
what is SIL 1 2 3
we have a s-5 simense plc having op7 .recently on op7 showing error 1.plc not present 2. DB error frequently. can u have any solution . please send me.
in sulfur process what is material of impulse line we use to connect with transmitter ? and does teflon affected by sulfur?
What is Span Error
how do i tune dearator pr control valve using PID. we set the set point is 0.6kg/cm2 now i want 0.5 to 0.7kg/cm2 limits so what should i give p,i,d values. then pls explain how do set pid values for control valve tuning?
in valve is constructed as per SME B 16.34, then which standard is used for fire testing of valve?.
what should he know if he is an assitent engineer instrumentation in cement industries of experience of 10 - 15 year.
