Siemens Level 1 Questions & Answers Solved 100% Correct!!

The basic function of a PLC is to... - Answer-... accept inputs, make logical decisions, and send outputs. The basic difference between a PLC and a relay control system is that ... - Answer-... one uses relay control logic and the other uses programmed instructions. -| |- - Answer-... can be thought of as a contact that is usually opened. -( )- - Answer-... imaginary coil that, when energized, will activate a digital output contact. Determine the number of possible combinations of a six digit binary number. - Answer-64 combinations A device used to convert a binary number to a 7-segment display format is ... - Answer-... a decoder The largest decimal number that can be represented with eleven binary bits is ... - Answer-... 2047. The binary number can be written in hexadecimal as ... - Answer-A7C5 The conversion of the decimal number 156 to 8421 BCD is... - Answer- If a given memory unit consists of 2,400 bytes the memory capacity would be rated: - Answer-19,200 bits Which of the following statements about a NAND gate are correct? - Answer-If all inputs are 0, the output will be 1. If one or more inputs are 0, the output will be 1.If you want to know when one or both matching bits in two different words are logic '1' you would use the ... - Answer-... OR instruction. A system contains two identical circuits operating in parallel as shown below. As long as both are operating properly, the outputs of both circuits are always the same. If one of the circuits fails, the outputs will be at opposite levels. To indicate the failure, the outputs of the circuits are connected to the inputs of ... - Answer-...an XOR gate. The status bit of switches and pushbuttons connected to a PLC input module are stored in the ... - Answer-... process image input file. Branch instructions are used to create: - Answer-parallel paths. By which system does the CPU communicate with input and output modules located on the same rack? - Answer-Backplane Bus The Central Processing Unit (CPU) ... - Answer-... accepts inputs, makes decisions provided by the program, and sets outputs. The PLC program is uploaded from the programming device into the PLC. Into which specific CPUMemory of the PLC is the program loaded? - Answer-Load memory Which of the following counter is available in STEP 7? - Answer-Up/Down counter In programs that are written in ladder logic, all outputs are represented by ... - Answer-... coil symbols. The move instruction copies data from ... - Answer-... a source byte to a destination byte. The maximum number of networks allowed in a Step 7 program is ... - Answer-... limited only by the memory size.The maximum number of outputs allowed per network in a Step 7 program is ... - Answer-... limited only by the memory size. In PLC operation, a scan is usually a sequential process of ... - Answer-... reading the status of inputs, evaluating control logic, and updating outputs. Parallel connections of a ladder logic program are typically called ... - Answer-... branches. What kind of signal varies continuously? - Answer-Analog signal An 8-bit binary counter has to count balls going into a box from a conveyor belt. A sensor detects the passing of a ball. If it has counted one hundred balls, the binary value of the counter is ... - Answer-... .