Compare 01 — High temperature lamp

Briefing

TANK_TEMP_C is a number: the tank temperature in whole degrees C. HIGH_TEMP_LAMP must be on when it is above 80, and off otherwise. A comparison contact passes power only while its test is true. Mind the boundary: exactly 80 is not above 80. Use the input panel to type readings and watch the lamp. The Diagram tab has no comparison contact. Write the rung in the Code tab, with the comparison in brackets, for example | (SPEED > 5) | := FAST ;

Objectives

• Temperature 80 or lower: HIGH_TEMP_LAMP off
• Temperature above 80 (81, 150, ...): HIGH_TEMP_LAMP on
• The lamp follows the reading live, on and off again

I/O Table

Your program will be tested against:

All test cases run automatically when you submit. Assertions are hidden until you pass.

1. #1Temperature 50 → lamp off

   A normal temperature leaves the lamp off

2. #2Temperature exactly 80 → lamp off

   The limit itself is not "above 80"

3. #3Temperature 81 → lamp on

   One degree above the limit lights the lamp

4. #4Temperature 150 → lamp on

   Any reading above the limit lights the lamp

5. #5Falls back to 79 → lamp off again

   The lamp follows the reading live; it does not stay on