What is meant by Fail Safe Condition in PLC?

Answer Posted / prakash patel

Failsafe means plc or marshalling power supply card in redundant system,means 2oo1. if 1 card fail than other charge card in use. It is failsafe condition if total plant shut down , memory w'nt loss in pc.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann

1892


How to Calibrate Temperature Switch in field

809


i want to find out iffco get test paper

12250


How to convert milliampares into flow??

1282


when a magnet is heated?

1530






What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.

1803


What is stripper & spilitter ? Diffrence in this.?

2545


How to calculate mmwc values into tonnes?

781


If relative y axis vibration sensor is by passed, and relative x axis and absolute sensor is left working. how much monitoring i would have risked?

1040


WHAT IS TMXT IN TEMPERATURE FOUNDATION FIELDBUS.

1876


1- Explain about HPM 2- What is the FSC and explain the configuration of FSC 3- explain the complete loop of vibration, how it works (field to control room) 4- What is the use of proxymitter? 5- During job your partner effected with H2S then what you have to do. 6- what type of gland packing uses when valve glind is leaking.

2377


Emergency Shutdown Systems/ Plant Shutdown System.

1759


What is Predictive Maintenance

749


I have completed B.E. Instrumentation & control in 2009. i have 3 year industrial job experience in chemical plant.now, I want to join M.E. in external. so, Plese say easiet way and good institute name.

1479


what does it mean an active front end in vfd plz explain it briefly

1414