Scada Engineer

Scada Engineer Interview Questions and Answers

Updated 9 Oct 2024

Q1. How we can check a load cell without giving it its power supply

Ans.

Load cell cannot be checked without power supply.

Load cells require power supply to function properly.
Without power supply, load cells cannot measure or transmit any data.
To check a load cell, it is necessary to provide it with its required power supply.

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Q2. How we can set VFD parameters without knowing its model no.

Ans.

It is not possible to set VFD parameters without knowing its model number.

The model number of the VFD is essential to access its specific parameters.
Each VFD model has its own unique set of parameters that need to be configured.
Without the model number, it is impossible to determine the correct parameter values.
Consult the VFD's documentation or contact the manufacturer to obtain the model number.

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Q3. What happens if two device have same IP address

Ans.

If two devices have the same IP address, it can lead to network conflicts and communication issues.

Having the same IP address can cause network errors and connectivity problems.
It can result in data packets being sent to the wrong device.
Network administrators may experience difficulties in identifying and troubleshooting issues.
Duplicate IP addresses can lead to intermittent or complete loss of network connectivity.
To resolve the issue, the conflicting devices need to be ass...read more

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Q4. How we can communicate PLC to PLC

Ans.

PLCs can communicate with each other through various methods such as Ethernet, serial communication, or fieldbus protocols.

PLCs can communicate using Ethernet/IP protocol, which allows for real-time data exchange between multiple PLCs.
Serial communication, such as RS-232 or RS-485, can be used to establish a direct connection between PLCs.
Fieldbus protocols like Profibus or Modbus enable communication between PLCs over a shared network.
PLCs can exchange data using OPC (OLE fo...read more

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Q5. What is rtu and bm

Ans.

RTU stands for Remote Terminal Unit and BM stands for Binary Message.

RTU is a device used in SCADA systems to collect data from sensors and equipment in the field.
BM is a type of message format used in communication protocols like Modbus.
RTUs are often used in conjunction with PLCs to control and monitor industrial processes.
BM messages consist of binary data encoded in a specific format for transmission.

Q6. Plc scada difference

Ans.

PLC and SCADA are both industrial automation technologies, but PLC is used for controlling machinery while SCADA is used for monitoring and controlling entire systems.

PLC (Programmable Logic Controller) is used for controlling machinery and processes in industrial settings.
SCADA (Supervisory Control and Data Acquisition) is used for monitoring and controlling entire systems or processes.
PLC is more focused on real-time control and is often used in conjunction with SCADA syste...read more

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