4th Class Power Engineering Unit A9 Chapter 4: Introduction to Programmable Controllers Already Passed

4th Class Power Engineering Unit A9 Chapter 4: Introduction to Programmable Controllers Already Passed This type of PLC cannot be expanded: Select one: a. field transmitter b. modular c. monolithic d. programmable c For programming a HMI you must: Select one: a. add a card to the HMI b. reconfigure the hard drive c. manually restart the HMI d. plug a laptop into the HMI d HMIs restrict operator access to: Select one: a. visual/search interaction only b. start-stop operating parameters c. less critical operating parameters d. only critical operating parameters c HMI is an acronym for: Select one: a. human machine interaction b. human micro-processing interface c. human machine internet d. human machine interface d PLCʼs designed to be used as primary burner safeguard systems require the following: Select one: a. all control devices must fail-safe b. all listed answers c. BNS system and program must be designed by a competent person d. must have a hard-wired watchdog timer b Hard controls on a HMI communicate with the PLC as_________ if they are not hardwired: Select one: a. timer codes b. discrete or analog inputs c. field transmitters d. contact inputs b Larger, more complex PLCʼs tend to be: Select one: a. modular b. monolithic