Networked SCADA architecture in SCADA systems - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define the main communication protocol used in a Networked SCADA system.

SCADA systems

protocol = "[1]"

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AFTP

BHTTP

CModbus

DSMTP

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing HTTP or FTP which are not typical SCADA protocols.

The Modbus protocol is commonly used for communication in Networked SCADA systems because it is simple and widely supported.

2fill in blank

medium

Complete the code to specify the device that collects data from sensors in a Networked SCADA system.

SCADA systems

device = "[1]"

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AFirewall

BRouter

CSwitch

DPLC

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing network devices like routers or switches with control devices.

A PLC (Programmable Logic Controller) collects data from sensors and controls actuators in SCADA systems.

3fill in blank

hard

Fix the error in the code that sets the SCADA server IP address.

SCADA systems

scada_server_ip = "[1]"

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A256.100.50.25

B192.168.1.100

C192.168.300.1

D192.168.1

Attempts:

3 left

💡 Hint

Common Mistakes

Using numbers greater than 255 or incomplete IP addresses.

IP addresses must be valid. 192.168.1.100 is a valid private IP address. Others have invalid octets or incomplete format.

4fill in blank

hard

Fill both blanks to create a dictionary mapping device names to their IP addresses in a Networked SCADA system.

SCADA systems

devices = {"PLC1": "[1]", "RTU1": "[2]"}

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A192.168.0.10

B10.0.0.5

C300.168.0.1

D192.168.1

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid IP addresses like 300.168.0.1 or incomplete ones.

Both IP addresses must be valid. 192.168.0.10 and 10.0.0.5 are valid private IP addresses.

5fill in blank

hard

Fill all three blanks to define a function that sends a command to a SCADA device over the network.

SCADA systems

def send_command(device_ip, command):
    import socket
    s = socket.socket(socket.AF_INET, socket.SOCK_[1])
    s.connect((device_ip, [2]))
    s.sendall(command.[3]())
    s.close()

Drag options to blanks, or click blank then click option'

ASTREAM

B502

Cencode

DDGRAM

Attempts:

3 left

💡 Hint

Common Mistakes

Using UDP socket type (DGRAM) or wrong port numbers, forgetting to encode the command.

The socket type for TCP is STREAM, port 502 is standard for Modbus TCP, and encode() converts the command string to bytes.