Siemens Level 1 Exam

Siemens Level 1 Exam What is the basic function of a PLC? Accept inputs, make logical decisions, and send outputs What is the basic difference between a PLC and a relay control system? One uses relay control logic and the other uses programmed instructions. Field devices refer to... All kinds of sensors and actuators that are physically wired to PLC input/output modules. A contact that is usually opened will look like... -I I- An imaginary coil that, when energized, will activate a digital output contact looks like... -( )- A device used to convert a binary number to a 7-segment display format is... Decoder The largest number that can be represented with eleven binary bits is... 2047 The binary number can be written in hexadecimal as... A7C5 The conversion of the decimal number 156 to 8421 BCD is... If a given memory unit consists of 2,400 bytes the memory capacity would be rated... 2,400 bytes * 8= 19,200 bits What is true about a NAND gate?