+1-415-670-9189
info@expertsmind.com
Function of the hmi in a scada system
Course:- Electrical Engineering
Reference No.:- EM13298




Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Electrical Engineering

Question 1:

The IEC 61131 standard sates the five IEC 61131-3 languages. Each of the five languages provides distinct advantages so, depending upon the application, and is often advantageous to combine them. Using the internet, briefly illustrate the distinct advantages for other four languages except IL.

Instruction List (IL)

  • Text-based language similar to processor "assembly" code
  • Executes the fastest of the five languages;
  • Easily imported/exported

Question 2:

State TWO advantages for using the subsequent bus standards in an industrial process:

       (i) Modbus-TCP

      (ii) Modbus-RTU

      (iii) Device Net

      (iv) Profibus

Question 3 :

State the commonly found components of a SCADA (Supervisory control and data acquisition) system.

Question 4 :

Decribe the function of the HMI in a SCADA system.

Question 5:

Modbus RTU is one of the field bus standards used in industry.

      (i) Describe with the aid of sketch the structure of the transmitted and received master/slave protocol frame.

Question 6:

State one advantage of using CAN-open over Modbus RTU for a field bus.

Question 7:

Modbus RTU can be used with either RS232 or RS485, explain why RS485 is preferred method of communication between a master and slaves.

Question 8:

Using the internet, locate information on a safety PLC.

Illustrate the difference in concept between a standard PLC and a safety PLC.




Put your comment
 
Minimize


Ask Question & Get Answers from Experts
Browse some more (Electrical Engineering) Materials
Design a synchronous circuit that implements a 4-bit decade (modulo-10) counterĀ  (0000,0001, ..., 1001, 0000,...) a. Fill in a transition table (using don't ca
Historically op amps and comparators have a lot of similarity in their internal circuit designs. However, they have very different uses in application circuits. Let's talk a
Refer to the circuit: Compute the circuit time constant. Obtain an expression for vx(t) valid foe all t. If the dependent source is installed in the circuit upside down, find
Design a simple unipolar drive circuit such that the electrical time constant is 2 msec at phase turn-on and 1 msec at turnoff. The stepping rate is 300 steps per second. A
A volume charge density of K Coulombs per cubic meter resides uniformly within the material of a long cylindrical shell whose inner radius is 1 m and whose outer radius is 3
Consider a coil wound on an iron core. Suppose that for operation with a given 60-Hz ac current, the hysteresis loop of the core material takes the form of a rectangle, as s
An isolated three-phase load is supplied from a 33 kV/11 kV substation via a 5MVA transformer with an impedance of 6% (calculated on transformer rating) and a 38 km long thr
Consider the full wave rectifier circuit as shown below, where R=1k-ohm, C= 100 F. If the input voltage Vin = 24 V(peak to peak), Frequency=1k Hz, transformer turns ratio is