S7 1500 PLC Refresher Quiz

What is the main difference between Siemens S7-1200 and S7-1500 PLCs in terms of performance?

• • S7-1200 has faster cycle time

• • S7-1500 supports only analog signals

• • S7-1500 has higher performance and memory capacity

• • S7-1200 is modular

In an S7-1500 PLC system, which component is responsible for executing the user program?

• • Power Supply

• • CPU Module

• • Digital Input Module

• • Communication Module

What does the LED “RUN” indicate on the S7-1500 CPU module?

• • CPU is not powered

• • CPU is in STOP mode

• • CPU is executing the program

• • Hardware error

Which programming languages are supported by Siemens TIA Portal for S7-1500? (Select all that apply)

• • Ladder Diagram (LAD)

• • Structured Text (ST)

• • Instruction List (IL)

• • Function Block Diagram (FBD)

In S7-1500, which block type is used to store reusable code with internal memory that retains its state?

• • OB (Organization Block)

• • FC (Function)

• • FB (Function Block)

• • DB (Data Block)

What is the purpose of a Watchdog Timer in the S7-1500 PLC system?

• • To trigger alarms

• • To monitor program execution time and detect time overruns

• • To store variable values

• • To log data to memory

What is the default communication protocol used by S7-1500 for Ethernet-based communication?

• • Profinet

• • Modbus RTU

• • CANopen

• • AS-Interface

In a PUT/GET communication between two S7-1500 PLCs, which setting must be enabled in the CPU properties of the partner PLC?

• • Enable Web Server

• • S7-1500 supports only analog signals

• • S7-1500 has higher performance and memory capacity

• • S7-1200 is modular

Where can you find diagnostic information about CPU errors and hardware faults in TIA Portal?

• • PLC Tag Table

• • Watch Table

• • Online & Diagnostics

• • HMI Configuration

If an input module connected to S7-1500 shows no response, which of the following is the FIRST step you should take?

• • Restart the CPU

• • Check the wiring and power supply to the module

• • • Format the CPU memory

• • Replace the CPU