Question

rslogix 500

3. Central air conditioner with temperature control This is a digital temperature control, meaning the PLC output turn ON/OFF the A/C as follows: Turn On the A/C when the SP is reached. Keep the A/C ON until reaches below the 0.94 value of the SP. The temperature control has a -6% dead band of the Set point: PLC address 1:3/6 Description A/C ON switch 10 bit, analog Temperature sensor (Range 50 to 100 deg F) Temperature Set Point. To be entered by operator Low Dead band value, Calculated only ounce Working area for calculation, if necessary! A/C Unit output 0.50 F 8:3 F8:0 F8:1 F8:2 Om - 0:4/2

Answer 1

Answek:- N6 JOUOY Given that, (ental ais Conditionex with tempesatiure rol Digital tem pesatuxe contiol, meaning the PLC Olp turn ON OFF the Al as follows : Tuxn ON the Alc when the SP fs seached * Keep Alc ON until seaches below the o.94 Value of the SP The tempesatuse Contaol has point. a 6% dead band of the Set By using the data dsaw 1t as abore can we below. Always ON Muliply SUB F8:2 R 0.06 FS:0 F8:0 Eq to 0:1/2 T:316 F8:3 M 2. F8:2 Less 0: 4/2 FS: 3 FS: 3 M2.1 than this anothes M bit can be used Fa Always ON e.94 Mul F8.3 R F8.0