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. In the Diagram tab, add a Compare contact (CMP on the toolbar, or in the Add list on a phone), then choose the number tag, the test and the limit.

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