M.Sc. (Semester IV) (CBCS) Examination Nov/Dec-2018
Electronics
MECHATRONICS AND INDUSTRIAL AUTOMATION
Time: 2½ hrs Max. Marks: 70
Instructions: Attempt five questions.
Q. 1 and 2 are compulsory.
Answer any three questions from Q.3 to Q.7.
Figures to the right indicate full marks.
Q.1 Choose correct answer. 08
When MCR is the following ladder diagram lines specified are
turned OFF.
ON OFF
TRIGGER Both a and b
The message frame of modbus can be up to bytes in length.
128 256
252 64
Timer function of PLC is dented as
TR TS
Both a and b None of these
The design process begins with a from, a customer or a client.
Need Signal conditioning
Display system None of these
A respond to the quantity being measured by giving as its
output signal which is related to the quantity.
Sensor Signal conditioning
Display system None of these
In PLC Input module, optoisolator used to isolate convertor and
input logic output logic
CPU Both a and b
Which of the following PLC arithmetic function?
ADD SQUARE ROOT
MOD Both a and b
Control element decides an action to take when it receives an
signal.
error analog
digital none of these
Page 2 of 2
SLR-VJ-281
State True or false. 06
Flexibility is an advantage of PLC devices.
In PLC input module the Input Logic block output is connected to
optcoupler.
LVDT is analog input device of PLC.
Normally open contact, when this contact closes, the function carries out
some kind of action.
The CPU of the PLC is known as Brain of PLC.
Modbus ASCII is the first Modbus and is a serial protocol, typically
running on either the RS-232 or RS-485 physical layer.
Q.2 Answer any two of the following. 10
Explain in detail about remote terminal unit (RTU).
Write note on IO modules and their characteristics.
Discuss modeling of the system.
Explain design process of mechatronic system. 04
Q.3 Explain Timer and Counter Function of PLC. 08
Write note on advantages and disadvantages of mechatronics systems. 06
Q.4 Discuss Sequencer function and draw ladder diagram for sequence output
as (1001, 1010, 1011, 1100, 1101).
08
Explain in detail architecture, advantages and limitations of CCS system. 06
Q.5 Explain concept of programming of the PLC with suitable example. 08
Compare open and closed loop systems. 06
Q.6 Discuss types of SCADA system. 08
Explain an architecture of DCS in detail and write note on DCS
communication.
06
Q.7 Explain in detail Architecture of Programmable Logic Controller. 08
Discuss SCADA protocol. 06