ii. Table 3 shows the detail description for a PI&D symbol following International Society of Automation (ISA) standard. Sketch the PI&D symbol according to the description given. (12 marks) Table 3: Detail description for a PI&D symbol Details Description of PID symbols -Discrete Instruments -Accessible to operators Location Central control room Symbol 2 Central control room -Shared Hardware -Behind the panel or otherwise inaccessible to operator 3 -Software computer function -Behind the panel Auxiliary location 4 Auxiliary location -Shared Logic Programmable Logic Control -Accessible to operator