What is DCS and PLC scanning time?

Answer Posted / srikrishnan

SCANNING TIME OF PLC DEPENDS ON THE NUMBER OF RUNGS, JUMP
COMMANDS, SUB ROUTINES, AND INTERFACING DRIVER
CONFIGURATION. THERE IS NO FIXED SCAN TIME FOR PLC.

Is This Answer Correct ?    2 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How r the calculation of process line mpm.

4309


How many types of sensor

1161


Identification of ss fittings, pilot valves, relief valve.

1391


A valve in series with an orifice plate (DP transmitter), is aligned for constant pressure in the pipeline, if there is an error dx, How to align it in process.

872


HOW TO SOLVE PROBLEM WITH ENRAF LEVEL TRANSMITTER 854 ATG THAT PASSWARD DO NOT Exist INTO TRANSMITTER TO ADJUST LEVEL WITH PORTABLE PET 847, WRITTEN WRONG PASSWORD , I AM SURE THAT DEFAULT PASSWARD (W2=ENRAF2) IS THIS TRANSMITTER NEED TO REPLACE SOFTWARE AND HOW?

2985






what is the minimum power (P=VI)to produce a spark?

1557


How works weighfeeders in cement industry? what is the working principle?

1524


What are the types of valves?

621


Why boiler chimney area  oxyden sensor fixing? 

2046


How digital input and digital output 's are working in dcs

2038


Can Any body tell me how to check Modbus Settings in ER300N L&T trivector meter?

2045


how can use ram

1486


I will attend an interview with GasGas company for a position of Instrument Technician ( Offshore )in next month can anyone tell me what questions they will ask. Thanks in advance.

1650


how many types of spped sensors n vibration sensors?their basic principle n connection?

2079


how to calibrate load cell

2319