SIEMENS PLC TEST 1 QUESTIONS WITH SOLVED 100% ANSWERS!!
What is a programmable logic controller(PLC)? - (answer)An industrial grade computer that is capable of
being programmed to perform control functions.
Which of the following is not an advantage PLC offers over conventional relay-based control systems? -
(answer)Ability to Control High Voltage/Current Directly
A(n) _____ architecture design allows the system to be easily connected to devices and programs from
other manufacturers. A(n) _____ architecture makes connecting devices from different manufacturers
more challenging - (answer)open | proprietary
Inputs and Outputs (I/O) are integrated into the PLC in either _____. - (answer)fixed or modular
configurations
When I/O is modular, it slots into the _____. It connects to the backplane allowing the CPU to
communicate with the modules. - (answer)Rack or chassis
Which of the following is a function of the Processor Module or CPU? - (answer)Executes the stored user
program from memory.
Sends appropriate output commands to control devices.
Accepts input data from sensing devices.
Which of the following describes the function of I/O modules? - (answer)Forms the interface between
the CPU and the field devices
Which of the following is not powered by the Power Supply? - (answer)Field device
What are the two most common types of PLC programming devices? - (answer)Laptop and personal
computers
, SIEMENS PLC TEST 1 QUESTIONS WITH SOLVED 100% ANSWERS!!
Which of the programming languages below is the most common (often considered standard) language
used in PLC? - (answer)Ladder logic
What is a Rack as defined by Siemens? - (answer)A device that accommodates the modules and
connects them to each other.
What is the function of a power supply? - (answer)provides the power to the CPU and the internal
circuitry of connected modules.
What type of module adapts the signals from field devices to the internal signal level? - (answer)Signal
modules
In S7-300 controllers, how many I/O modules can be plugged into the central rack? - (answer)8
In newer S7-300 CPUs, the _____ is a non-volatile memory device that stores the user program and acts
as the load memory of the PLC. - (answer)MMC
In S7-300 CPUs, is the MMC required to operate the unit? - (answer)Yes
What is the maximum permissible current per rack? (S7-300) - (answer)1.2A
_____ are used to scan the signal states of momentary-contact switches an limit switches. -
(answer)Discrete input modules
_____ are used to control contactors and lamps. - (answer)Discrete output modules
In system memory, what is a Timer? - (answer)A location used to implement waiting and monitoring
times.
What is a programmable logic controller(PLC)? - (answer)An industrial grade computer that is capable of
being programmed to perform control functions.
Which of the following is not an advantage PLC offers over conventional relay-based control systems? -
(answer)Ability to Control High Voltage/Current Directly
A(n) _____ architecture design allows the system to be easily connected to devices and programs from
other manufacturers. A(n) _____ architecture makes connecting devices from different manufacturers
more challenging - (answer)open | proprietary
Inputs and Outputs (I/O) are integrated into the PLC in either _____. - (answer)fixed or modular
configurations
When I/O is modular, it slots into the _____. It connects to the backplane allowing the CPU to
communicate with the modules. - (answer)Rack or chassis
Which of the following is a function of the Processor Module or CPU? - (answer)Executes the stored user
program from memory.
Sends appropriate output commands to control devices.
Accepts input data from sensing devices.
Which of the following describes the function of I/O modules? - (answer)Forms the interface between
the CPU and the field devices
Which of the following is not powered by the Power Supply? - (answer)Field device
What are the two most common types of PLC programming devices? - (answer)Laptop and personal
computers
, SIEMENS PLC TEST 1 QUESTIONS WITH SOLVED 100% ANSWERS!!
Which of the programming languages below is the most common (often considered standard) language
used in PLC? - (answer)Ladder logic
What is a Rack as defined by Siemens? - (answer)A device that accommodates the modules and
connects them to each other.
What is the function of a power supply? - (answer)provides the power to the CPU and the internal
circuitry of connected modules.
What type of module adapts the signals from field devices to the internal signal level? - (answer)Signal
modules
In S7-300 controllers, how many I/O modules can be plugged into the central rack? - (answer)8
In newer S7-300 CPUs, the _____ is a non-volatile memory device that stores the user program and acts
as the load memory of the PLC. - (answer)MMC
In S7-300 CPUs, is the MMC required to operate the unit? - (answer)Yes
What is the maximum permissible current per rack? (S7-300) - (answer)1.2A
_____ are used to scan the signal states of momentary-contact switches an limit switches. -
(answer)Discrete input modules
_____ are used to control contactors and lamps. - (answer)Discrete output modules
In system memory, what is a Timer? - (answer)A location used to implement waiting and monitoring
times.
