SCADA programmer interview questions
- What is the full form of SCADA ?
Supervisory control and Data Acquisition
2.What are the common system components of SCADA system ?
Remote terminal units
Data acquisition server
HMI Historian software Supervisory system Communication infrastructure Process and analytical instrumentation
3.What is RTU?
Full form of RTU is remote terminal unit . Remote terminal units connects sensors in the process control and convert sensor signal to digital data.
4.Brief about SCADA architecture ?
5.Different communication protocols used in SCADA communication ?
Ethernet Modbus VSAT
6.Major SCADA manufactures and their software name ?
7.What is OPC?
8.Basics of Modbus communication ?
9.Different types of modbus communication ?
10.Brief about Ethernet communication ?
11.What is a switch ?
12.What is subnet masking ?
13.What is TCP/IP protocol?
14.In server client architecture who is the data owner ?
Server is the data owner. Client request for Data and server respond to request
15.In Master - Slave architecture who is the data owner ?
Slave. Master request for data and slave provide data .
16.What are the disadvantages of SCADA comparing to DCS?
Search on forumautomation.com for more information
Advantages of SCADA system
what is VSAT ?
Common SCADA programming languages ?
20.Compare SCADA and DCS