Buhler Service Engineer Interview Questions and Answers

Q1. Tell me about your work experience
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Q1. Ask about career of education and previous work in previous company...
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Q2. Be confident & Be smart answer to the interview conducted person..
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Q1. Good in communication... Be in confidence what your telling at the time of interview... Be prepare well on resume what you have forwarded.... Be smart answer at the time of interview.....
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What is relay..who it's work what is conductor tell about plc,scada,hmi

Q1. What is ur first project tell about it ..plc motor logic with 5 sec delay
Ans. 
My first project involved designing a PLC motor control system with a 5-second delay for operational efficiency.
• Utilized a PLC (Programmable Logic Controller) to automate motor operations.

• Implemented a 5-second delay to prevent motor overload during start-up.

• Designed the logic using ladder diagrams for clear visualization.

• Tested the system to ensure the delay function worked as intended.

• Integrated safety features to pr...read more
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Q1. Where are form,when u start a carrer, i like to join in this comany
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Q1. What is the control valve and operation
Ans. 
A control valve is a device used to regulate the flow of a fluid in a system by varying the size of the flow passage.
• Control valves are commonly used in industries such as oil and gas, chemical, and power plants.

• They can be operated manually, pneumatically, electrically, or through a combination of these methods.

• The operation of a control valve involves adjusting the position of the valve plug or disc to control the fl...read more
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Q1. Salary expectations
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Q1. Introduce yourself briefly?
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Q2. What projects you have done in previous company
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Q3. What is lifecycle of project
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Q4. What are the industrial communication protocols
Ans. 
Industrial communication protocols are standards for data exchange between devices in industrial automation and control systems.
• Some common industrial communication protocols include Modbus, Profibus, DeviceNet, Ethernet/IP, and CANopen.

• These protocols enable devices from different manufacturers to communicate with each other and exchange data.

• Industrial communication protocols can be wired or wireless, and can operate...read more
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Q5. What are the settings required in MODBUS
Ans. 
MODBUS settings include baud rate, parity, data bits, stop bits, and slave address.
• Baud rate determines the speed of communication between devices.

• Parity is used for error checking and can be set to even, odd, or none.

• Data bits determine the number of bits used to represent each character.

• Stop bits indicate the end of a character and can be set to 1 or 2.

• Slave address is used to identify the device on the network.

• Examp...read more
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Q6. Maximum speed in modbus
Ans. 
The maximum speed in Modbus depends on the baud rate and cable length.
• Modbus speed is measured in baud rate

• Higher baud rates allow for faster data transfer

• Cable length can also affect the maximum speed

• For example, at 9600 baud rate, the maximum cable length is 1200 meters
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Q7. How many device add in modbus
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The number of devices that can be added in Modbus depends on the network architecture and the number of available addresses.
• The maximum number of devices that can be added to a Modbus network is 247.

• The number of available addresses depends on the type of Modbus protocol used (RTU or TCP/IP).

• The network architecture also plays a role in determining the number of devices that can be added.

• It is important to ensure that ...read more
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Q8. Types of modbus communication
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Modbus communication types include RTU, ASCII, and TCP/IP.
• RTU (Remote Terminal Unit) is a serial communication protocol that uses binary code to transmit data.

• ASCII (American Standard Code for Information Interchange) is a serial communication protocol that uses ASCII characters to transmit data.

• TCP/IP (Transmission Control Protocol/Internet Protocol) is a network communication protocol that uses Ethernet to transmit d...read more
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Q9. On which scada you are worked
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Q10. What is maximum Input output handle
Ans. 
The maximum input output handle refers to the maximum number of inputs and outputs that a device can handle.
• The maximum input output handle varies depending on the device and its specifications.

• It is important to consider the maximum input output handle when selecting a device for a project.

• For example, a PLC may have a maximum input output handle of 256 inputs and 256 outputs.

• Another example is a microcontroller with ...read more
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Q11. How many pages designed in HMI
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The number of pages designed in HMI depends on the project requirements and complexity.
• The number of pages can range from a few to hundreds depending on the project scope.

• The complexity of the HMI design and functionality also affects the number of pages.

• Factors such as user interface, data visualization, and system integration can impact the number of pages.

• It is important to prioritize user experience and ease of nav...read more
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Q1. What is Profibus?
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Q2. How to troubleshoot Profibus
Ans. 
Troubleshooting Profibus involves checking physical connections, network configuration, and device settings.
• Check physical connections to ensure cables are properly connected and not damaged.

• Verify network configuration settings such as baud rate, parity, and address assignments.

• Inspect device settings to ensure they match the network configuration and are functioning correctly.

• Use diagnostic tools like Profibus analyz...read more
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